1814586 - System freezes on Debian Bullseye and Bookworm

Status: RESOLVED INACTIVE

(Core :: Graphics: WebRender, defect)

Description

[Rik]

The previous bug report was closed before I could report the real problem, that is NOT any option in Firefox (despite some option can delay the problem), but the Firefox version of Debian 11 that is probably compiled in a wrong way.
Installing the orginal Firefox version from Mozilla fix the problem, and this is the real and only solution that works.

Comment 1

[Rik]

I was referring to this bug https://bugzilla.mozilla.org/show_bug.cgi?id=1664798

Comment 2

[Rik]

I said I would have tested the 91esr for 20 days and I did it. Result OK for such version. I am now going to upgrade to 102.7esr to see if it still resists or the problem is back (already tested the 102esr from Debian repo and it freezes the OS after some days).

Comment 3

[Rik]

Test of 102.7.0esr ongoing. I'll be back in 20 days to report if the problem is resolved for sure.

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:gerard-majax, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 5

[Rik]

In the meantime I can say that I have had zero problems in these 19 days with the mozilla build, so I can confirm the problem is only with the FF build that comes with Debian stable.

Comment 6

[Sylvestre Ledru [:Sylvestre]]

This needs to be reported on the Debian bug tracker. Not Mozilla's.

Comment 7

[Rik]

It's more than a year that we are dealing with this problem trying to fix it in any way possible (see https://bugzilla.mozilla.org/show_bug.cgi?id=1664798 ) and now that I've found the culprit you tell me "This need to be reported to Debian"? :-)

By the way, I've opened this new bug report only because this one https://bugzilla.mozilla.org/show_bug.cgi?id=1664798 was closed before I could write the solution for all the other guys in such thread that are probably still wondering how to solve the randome freezes.
Maybe a moderator should add there a link to this bug report for those who are still getting crazy around this problem.

Comment 8

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:gerard-majax, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 9

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:gerard-majax, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 10

[Rik]

If I could set the severity I'd say S2 if it were on the mozilla build. Since I've found out after 1 year the problem is only in the build that comes with Debian Stable, I'd say S? because this impacts Mozilla image indirectly... I mean, many users of FF on Debian could have now changed browser thinking the problem is FF while the problem it's only the build made by Debian. Someone of Mozilla staff should complain with Debian.

Comment 11

[Julien Cristau [:jcristau]]

Mike FYI.
I'm not seeing anything actionable in this report though so not sure what to do with it, even ignoring the fact it's reported in the wrong place.

Comment 12

[Rik]

I'd say to do the following.
Here is the original report https://bugzilla.mozilla.org/show_bug.cgi?id=1664798
I was forced to write a new report because the previous was wrongly closed as resolved despite not resolved at all. I couldn't write the final comment to highligh the real culprit.

For such reason, all the interested people there (and you can see is a vast number of people) are still wondering how to solve such critical dangerous crashes. They are still there hoping to find a magic option while the problem is simply the Debian FF build and can't be solved setting options.

If someone could write there the link to this report, at least all the people there receive the notification and can finally realize why FF is freezing the entire Linux distro.
Then you could close both reports since I can now assure, FOR SURE, 100% that the problem is only FF from Debian repo and there is no way to fix it, can only be fixed by Debian or, as I did, installing FF ESR from Mozilla repo into /opt, and forget about FF from Debian.

Comment 13

[Rik]

Great job Alexandre, thanks.

Comment 14

[Rik]

Unfortunately few moments ago I've discovered the problem happens also with the Mozilla build, not only with the Debian one.
I was on chatGPT. Copy/paste of line of no more than 20 characters and I got a total system freeze as usual and I could only solve the problem with hard reset.
So we are back to square one.
FF 102.8.0esr (64-bit)

Comment 15

[mikhail]

Your problem is here: https://gitlab.freedesktop.org/drm/intel/-/issues/4858
And here: https://community.frame.work/t/tracking-hard-freezing-on-fedora-36-with-the-new-12th-gen-system/20675

On skylake hangs more often, so I figured it out faster. Your Kaby Lake is the newer version of skylake.

Comment 16

[Rik]

If that's the case, I wonder why

1. Never happened with FF 91 and lower versions that let me think it's a problem of Webrender
2. not a single time happened with FF Developer edition. The only difference is that I don't use it to navigate Internet but only on my local server, however FF ESR freezes the system even when opened on a simple page so it's not a matter of OpenGL usage.
3. Never happened with any other application
4. Never happened using Falkon for 1 month
5. While with FF by Debian (from the official Bullseye repo) it happens for sure in 20 days max, with FF by Mozilla only happened once 17 days ago. I'm still using FF by Mozilla and no problem since then.
6. How is it possibile that it goes OK for 20 days of 10 hours/day usage, and at certain point, with a simple page, I click a button o move the focus, and the computer freezes completely.
7. Stressing the browser opening/refreshing 100+ tabs repeatedly doesn't cause any crash
8. Stressing the browser running OpenGL/WebGL test for hours doesn't cause any crash
9. Running tons of YT video in parallel doesn't cause any crash
   then on a single tab, I move the mouse on another text and the freeze happens.

So It's no so easy to understand what's going on. There is probably some race condition that only happens in very specific situations.

It's surely something that has to do with the hardware config + FF Webrender, because no other apps of any kind have such problem. However I wonder why no problem with FF dev edition then. (And it's not the profile because it also happens purgin FF completely from the system and reinstalling from scratch with a new profile and zero addons.).

I've been working in IT and programming for 35+ year and solved zillions of problema, but this one is seriously tough.

Comment 17

[mikhail]

(In reply to Rik from comment #16)

If Intel engineers haven't been able to give a comment on this for a year, the problem is really very complicated and you are unlikely to get answers to your questions here.

Comment 18

[Rik]

Sure, however I report this problem because FF ESR seems to be the only app that triggers the problem, nothing else. Just to mention some apps with UI I use daily for 10 hours every day:
Mate DE (on Debian Bullseye)
Netbeans
Thunderbird
Geany
FF dev edition
VirtualBox

Not a single crash ever

Other apps I use very often but not always open:
Tor Browser
Filezilla
Remmina
Libreoffice
GIMP
Eclipse
Meld
VLC
SimpleScreenRecording

Special mention of apps similar to FF ESR:
FF Dev edition
Tor Browser
Falkon

Just to say that probably FF ESR has something "special" that triggers the OS freeze. The build from the Debian repo causes a freeze every week or so, while the one from Mozilla seems much robust and it happens only once in months. I keep going with that to see if it happens again. It's now 18 days since the last freeze.

Comment 19

[mikhail]

(In reply to Rik from comment #18)

Turn on compositing and these applications will also hang - I have it that way.

Comment 20

[Sylvestre Ledru [:Sylvestre]]

I have been getting this bug too

Comment 21

[Rik]

FF Dev edition, Falkon, Tor browser, they all have compositing.
Mate itself uses Marco Compositor. Some months ago I tested "Marco Compton GPU Compositor" on Mate, so that the entire DE was working basically like Firefox. No problems. I then switch back to "Marco no compositor" simply because I don't need the stupid animations that comes with the compositor.

Comment 22

[Sylvestre Ledru [:Sylvestre]]

As this isn't a Firefox issue, not sure we can do anything here.
However, I am keeping it open to facilitate its discovery...

Comment 23

[Rik]

Is PARTIALLY not a FF issue or presumed so, because up to now I can see this bug on FF only, so it's difficult to say it's not FF.

Comment 24

[Sylvestre Ledru [:Sylvestre]]

Probably because Firefox uses GPU more than other applications...

Comment 25

[Rik]

To me it has nothing to do with intense usage, for sure, because:

• Doing stress tests with openGL or WebGL never causes a freeze
• It happens even simply moving focus on a static form or with a copy/paste of a word (only in the browser not in other apps)
• It can go without a glitch for 20 or more days, 10 hours per day, 10 hours in which I do ANYTHING with the browser.
• Any other browser causes the same stress. I've used Falkon for more than a month an no problems. The same for FF Dev edition.

So it looks more like a race condition that FF ESR raises in very particular cases, maybe a specific sequence of events. It has nothing to do with stressing the GPU, e.g.:

1. Once it happened moving the volume slider on Youtube. GPU stress: a bit because the video was running, but I can do the same 1000 times and never happens again, not even with 30 videos running altogether.
2. Onother time it happened on a static form clicking a text input to move the cursor there. GPU stress ZERO. I do this operation zillions of times per month and no problem... except that one day it freezes the OS for unknown reason.

Moreover, reading some reports about the GPU problem I can read stuff like this one
"The time to the first crash can vary wildly, some times taking more than 30 minutes".
They are talking of MINUTES, while in my case it's a matter of WEEKS (with Debian FF build) or MONTHS (with Mozilla FF build).

It's so complex to solve...
I'll keep you updated with the few data I can gather.
In the meantime it's now 18 days since the last freeze.
I've put a resource monitor on the Mate Panel so in case of freeze at least I can see the CPU/RAM/swap/load graph of the last moment.

Comment 26

[Rik]

To be more clear about the GPU stress: I can run this test
https://webglsamples.org/aquarium/aquarium.html
for hours with 30.000 fishes. The FPS lowers to 17 (=high stress), and no freeze, no mater how long it runs. However could be that 1 hour later I open FF to write here in the comments and as soon as I click the text input the OS freezes.
So I am 100% sure is not related to GPU stress at all. 100% guaranteed.

Comment 27

[mikhail]

(In reply to Rik from comment #26)

This may depend on the linux kernel version and the version of firefox. When it all started 2 years ago I had very rare hangups once a month, now it happens immediately after 15 minutes if I turn off the 350 MHz limit.

Comment 28

[Sylvestre Ledru [:Sylvestre]]

I am 100% sure is not related to GPU stress at all. 100% guaranteed.

I wasn't talking about load but features.

Comment 29

[Rik]

The version of FF matter for sure. I didn't have any problem with versions <91.7.0esr. On the same computer I've run Debian + FF for ages. The problems started with FF 91.7.0esr. The strange thing is that never happens with FF dev edition, and didn't happend not even when it was the same version of the ESR today.
So it's for sure the version of FF but not only the version per se, it matters which edition/build.

@silverstre
It could be that FF teases the GPU in some aspect that other apps/browsers don't, however, FF dev editions surely doesn't use less features that the ESR... and I've never had a freeze with the dev edition.

Comment 30

[Darkspirit]

I had such system freezes as well for some period of time when Debian Testing was still bullseye.
One of my assumptions was that this could happen when Firefox and VLC play audio at the same time.
My Nightly also sent a louder becoming crackling to other users in Discord when I didn't talk.
The X11 threading problem (bug 1777849) also might have played a role, I don't know.

I would assume that this bug will be fixed for you when Debian stable switches to bookworm.

Comment 31

[Rik]

I look forward to upgrade to bookworm because Bullseye is the worst Debian distro I've ever seen! On top of that the Mozilla bad idea to remove the "Basic" compositor that was a saviour on any hardware for almost any strange problem.

Comment 32

[mikhail]

It seems in 111 some improvement, last year I had to turn off webgl, now I turned off the hardware acceleration and compositing in DE. I play webgl games without hangs, last year everything hung in games at once.

Comment 33

[mikhail]

(In reply to mikhail from comment #32)

It seems in 111 some improvement

No, when minimize the browser window, everything hung. But with WebGL problem solved. Yesterday and today I played games without any problems.

Comment 34

[mikhail]

With layers.acceleration.disabled=true

Again it hangs and again when you minimize the browser window.

Comment 35

[Rik]

SOME RECAP
Previously with the Debian Build it used to freeze the OS in no more than 20 days, typically 7, no matter what. I've tried with a couple of DE compositing with zero improvements, then back to "Marco no compositing" (on Mate). I tried disabling webGL, no HW acceleration and tons of other things: no difference at all: on average every week a freeze or max every 20 days.
The simple EXISTANCE of webrender is the cause of the problem. All went smooth and fast with "Basic" compositor. With webrender, even keeping firefox open without using it can freeze the system.

I then switched to the save v. 91 from the Mozilla repo (instead of Debian) and was OK, not a freeze for more than 20 days with webrender of course + hw acc. + webgl + De without compositor as usual.

Then I upgraded to 102.8.0esr and after ~20 days a freeze.

Now I'm on 102.9.0esr (I let FF upgrade when there is a notification of an upgrade).
It's now 20 days, so I'm now on the brink of a freeze OR hopefully it will never happen again. Let's see...

Comment 36

[Rik]

Mikhail, you are in a better situation than mine because at least you can try options and see the result. In my case it will takes 2000 years to do the same test you are doing in 1 hour because I have a freeze every 20 days. In the meantime I live in fear.... seriously because sometimes I find myself in complex situations in which I really think: "Gods of any universe make I don't have a free now or I'm dead!".
Just to be more clear: Netbeans open with 10 tabs on different files, with current editing here and there because I'm debugging a problem on a multi environment system. VirtualBox with a Windows VM where I test/modifify an API + a Windows client in another VM + a LAMP with another API + a local website. I have momentarily to stop to reply to an urgent email and report some data and to reply I have to check for a script online so I keep all the other things open while I check with filezilla a script online. Imagine in this situation a freeze! :-( That's what really happened 2 times. Apart from the loss of the last 5 minutes of editing here and there (and that requires time to find out what exactly), the Win VM was seriously damaged and I had to restore a backup.
I mean: if it happens when gaming, no problem. If it happens when working+programming in a complex scenario, it's quite... scary and time consuming. It's not by chance that I'm working on Debian Stable with the strict necessary to do my job and nothing else.

Comment 37

[mikhail]

I found a regularity - if you minimize Firefox, open Geany editor and actively there something to print, search for Ctrl-F, in short something to do everything hangs. Now need to figure out if it's Firefox fault.

Comment 38

[mikhail]

The windows should be expanded to full screen. I don't know, I can't reproduce the error again. Once every 6 hours or so it happens.

Comment 39

[mikhail]

There are a lot of errors in about:support

(#38) 	CP+[GFX1-]: Managed to allocate after flush.
(#39) 	CP+[GFX1-]: Managed to allocate after flush.
(#40) 	CP+[GFX1-]: Managed to allocate after flush.
(#41) 	CP+[GFX1-]: Managed to allocate after flush.
(#42) 	CP+[GFX1-]: Managed to allocate after flush.
(#43) 	CP+[GFX1-]: Managed to allocate after flush.
(#44) 	CP+[GFX1-]: Managed to allocate after flush.
(#45) 	CP+[GFX1-]: Managed to allocate after flush.
(#46) 	CP+[GFX1-]: Managed to allocate after flush.
(#47) 	CP+[GFX1-]: Managed to allocate after flush.
(#48) 	CP+[GFX1-]: Managed to allocate after flush.
(#49) 	CP+[GFX1-]: Managed to allocate after flush.
(#50) 	CP+[GFX1-]: Managed to allocate after flush.
(#51) 	CP+[GFX1-]: Managed to allocate after flush.
(#52) 	CP+[GFX1-]: Managed to allocate after flush.

I don't know if it has anything to do with this, but for information.

Comment 40

[mikhail]

(In reply to Rik from comment #35)

hw acc.

With hardware acceleration I can not work at all after 15-20 minutes the system hangs.

layers.acceleration.disabled=true doesn't help either, read above.

I remember 1.5 years ago it helped me to roll back to an old Linux kernel and Firefox didn't hang anymore.

Now it's the only thing that helps:

echo -e "#!/bin/sh\necho 350 > /sys/class/drm/card0/gt_max_freq_mhz" | tee /etc/rc.d/rc.local
chmod +x /etc/rc.d/rc.local

Comment 41

[Rik]

I have layers.acceleration.disabled=false and goes on for weeks so it's not a problem for me.

/sys/class/drm/card0/gt_max_freq_mhz in my case is set (not by me, it's the default) to 1050. This is not a problem either because it's impossibile it goes OK for 20 days. When it's a matter of frequency the problem should manifest itself in a matter of hours not days or weeks.

Comment 42

[mikhail]

Do not run browser from the .desktop file, run it only from the firefox directory: /usr/lib64/firefox/
I'm not sure yet, but it seems to work.

Comment 43

[mikhail]

Running /usr/bin/firefox:

MOZ_GRE_CONF	/etc/gre.d/gre64.conf
MOZ_ALLOW_DOWNGRADE	1
MOZ_GMP_PATH	/usr/lib64/mozilla/plugins/gmp-gmpopenh264/system-installed
MOZ_APP_LAUNCHER	/usr/bin/firefox
DISPLAY	:0.0
MOZ_USE_XINPUT2	1
MOZ_PLUGIN_PATH	/usr/lib64/mozilla/plugins:/usr/lib64/firefox/plugins
MOZ_ASSUME_USER_NS	1
MOZ_LAUNCHED_CHILD	
MOZ_APP_SILENT_START	
XRE_PROFILE_PATH	
XRE_PROFILE_LOCAL_PATH	
XRE_START_OFFLINE	
XRE_BINARY_PATH	
XRE_RESTARTED_BY_PROFILE_MANAGER

Running /usr/lib64/firefox/firefox:

MOZ_GMP_PATH	/usr/lib64/mozilla/plugins/gmp-gmpopenh264/system-installed
DISPLAY	:0.0
MOZ_ASSUME_USER_NS	1
MOZ_LAUNCHED_CHILD	
MOZ_APP_SILENT_START	
XRE_PROFILE_PATH	
XRE_PROFILE_LOCAL_PATH	
XRE_START_OFFLINE	
XRE_BINARY_PATH	
XRE_RESTARTED_BY_PROFILE_MANAGER

I think the culprit is MOZ_USE_XINPUT2=1.

Comment 44

[Rik]

It's only for the touchscreen on/off.

Comment 45

[Rik]

NEW FREEZE after 1 month from the latest freeze (17/3 --> 18/4).
This morning:

• I started the computer
• I don't remember if I opened Thunderbird first or went straight to the browser
• Searched a thing
• Then I opened YT
• Move the video cursor
• Freeze

I have any sort of monitor on the Mate panel just wating for the next freeze, and now I can say that at the moment of the freeze the resources and temperatures were all OK. So it's 100% not a problem of resources. No temperature problem. No stress at all of any kind.

Another strange thing: despite the total freeze, the onboard audio was in loop on a phrase. I mean, despite even the keyboard was paralized (caps lock led not turning on/off), the onboard audio was still able to loop the latest phrase of the video.

At this point I'd say it's not a matter of Debian or Mozilla build because it's the 2nd freeze with the Mozilla build.
The problems comes instead from the FF version: 92+ causes this problem. Previous version has zero problems. In other words I suppose the problem is 99% webrender.

Comment 46

[Rik]

It's not a "Third Party Packaging", this bug is about is the Mozilla build downloaded from the Mozilla website.

Comment 47

[Rik]

I mean I started this bug report thinking the culprit was only the Debian build, but now I have proof it's not because it's the 2nd freeze with the Mozilla build.

Comment 48

[Julien Cristau [:jcristau]]

The "MozillaBuild" component refers to https://archive.mozilla.org/pub/mozilla/libraries/win32/ so it's clearly not the right place for this linux graphics driver issue.

Comment 49

[Rik]

I took FF from here
https://www.mozilla.org/en-US/firefox/enterprise/#download
so it sounds a bit strange as "Third Party Build".

Actually we don't even know if it's GPU related. The title is not mine, it was modified by Silvestre. We should verify if it really happens with Intel GPU only or not.

Comment 50

[Rik]

From the companion bug reports closed by accident, I can see other people with the same problem with
GPU: NVIDIA C79 [GeForce 9400]
AMD Cape Verde PRO [Radeon HD 7750/8740 / R7 250E] driver: radeon
So could not be bound to an Intel GPU.
In fact the original bug was about a problem of WEBRENDER that is the only thing in common.
In fact before without webrender was all OK.

Comment 51

[Rik]

To me this bug should be set as I set at first:
Core
Component: Graphics: WebRender
Any objection?

Comment 52

[Darkspirit]

Please upgrade to Debian bookworm to check if it fixes the problem for you:

https://wiki.debian.org/DebianEdu/Documentation/Bookworm/Upgrades
https://www.cyberciti.biz/faq/update-upgrade-debian-10-to-debian-11-bullseye/
Install updates of current release:
$ sudo apt update
$ sudo apt full-upgrade
Replace sources:
$ sudo nano /etc/apt/sources.list

deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware
deb http://deb.debian.org/debian bookworm-updates main contrib non-free non-free-firmware
deb http://deb.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

$ sudo apt update
$ sudo apt upgrade --without-new-pkgs
$ sudo apt full-upgrade

Comment 53

[Rik]

Or maybe changing country were I live. :-) Jokes apart, I will only upgrade to bookworm when it becomes stable. I can't change OS simply because of Firefox. Every major upgrade brings a lot of troubles so I use to experiment the new versions on another computer and finally upgrade the production machine. I mean, it's no something to take lightheartedly like changing the desktop wallpaper. Maybe a videogamer can do that, but I have the problem on the computer where I work 10 hours/day.

Comment 54

[mikhail]

(In reply to mikhail from comment #42)

No, none of this helps. After two weeks it hang, and it hang all the time when the browser is minimized.

Comment 55

[Rik]

@mikhail
for you things are a bit better, because at least you can reproduce the problem easily. For me it's much worse because I work with this problem lurking like a predator, ready to strike at random in the range of 1 week to 1 month.

Probably I should try to install a discrete VGA card, disabling the intel one onboard and thus verify if it's a matter of webrender+GPU. In the end I think we all agree here and in the previous bug report that the problem is webrender, no doubt about it because with "basic" compositor never happened. With FF <=91 and "basic" compositor I've never had any issue for years with the same exact PC. So if it works with a discrete VGA at least we know for sure it's a problem of FF + Intel.

Comment 56

[mikhail]

Yes, I remembered in my first report I also complained about webrender.
https://bugzilla.mozilla.org/show_bug.cgi?id=1743505

Comment 57

[Rik]

ANOTHER FREEZE. 18/4/2023 -> 21/4/2023
For me this is the shortest time between failures experienced so far.
I was highlighting a text in a simple web page and it hangs completely.
Note: This morning I've updated to 102.10.0esr. Maybe this release it's even worse?

Comment 58

[mikhail]

The iGPU overclocking factor in the BIOS: 7 = 350 MHz
All in all I don't need to write it in rc.local
It solves all my problems.

Comment 59

[Rik]

@mikhail
something tells me you'll be back in while! :-)
Soon I'll try a discrete VGA disabling the one onboard.

Comment 60

[Rik]

From this moment I'm testing with Nvidia GT 710 Kepler (GK208B) + Nouveau as usual.
Let's see whether this solves the problem or not.

Comment 61

[Rik]

Important news!
I've had another freeze despite I'm now with the most compatible Linux GPU in the world.

This time is different though:

1. It happened while I was on FF dev edition

2. It started with some misbehaviour of the viewport showing objects in the wrong place and finally pure garbage (NB: outside the viewport was all OK, the garbage was only inside the viewport. I had Netbeans open + another editor, and both were OK and working). Moving the browser from one monitor to the other didn't refresh the viewport, nor with F5.

3. After 30s complete freeze... at least I though so because not the mouse nor the keyboard were working at all. It wasn't a delay, nothing was working at all. Not even the caps lock led was working (that is a good indicator if the OS is dead). I've also tried CTRL+ALT+BACKSPACE to restart X, but no response. I then tried the magic sysreq keys to reboot. Nothing.

4. I pressed CTRL+ALT+F1 just in case... at least accessing a terminal I could have made a soft reboot. It didn't work.

5. So the OS looked dead as in any previous case. However I had the idea to PING THE MACHINE and it was responding! I then tried to access via samba and it was working! Going back to the PC I noticed the CTRL+ALT+F1 had worked (huge delay?) in fact I now see the terminal!!!

6. Having a working terminal I pkilled firefox, went back to the DE with CTRL+ALT+F7 and was all OK (I'm writing from there without any reboot needed).

So?!!! It has always been FF freezing X and not the PC?
It was the access via nic that saved my day? It would have worked even with the integrated UHD 630?
I ask anyone with this problem to try the same: CTRL+ALT+F1, wait, if nothing happens in 60s, try to ping or access in some way the PC via LAN, then look again to the monitor if the CTRL+ALT+F1 has had effect.

In any case this highlight again there is something wrong with FF 92+. Never happened this before FF 92 for years on the same HW, and now it happens repeatedly even changing VGA while it doesn't happen with any other software/browser, only FF and now even with FF Dev edition for the first time.

Comment 62

[Rik]

Another important thing to highlight: I've set some system monitor addons in the systray just for this problem. I can see the trace of the CPU in a graph: there was no CPU load at all so the DE was not blocked because FF was in loop. It looks like FF can block X without overloading the CPU.

Comment 63

[mikhail]

https://fedoraproject.org/wiki/How_to_debug_Firefox_problems?rd=Bug_info_Firefox#Getting_Mozilla_crash_report_from_running_or_frozen_Firefox

Couldn't get the report? There should be a report in about:crashes.

Comment 64

[Rik]

Yes, I've saved into a file the crash report I've alredy sent to Mozilla. Here it is.

AdapterDeviceID: 0x128b AdapterDriverVendor: mesa/nouveau AdapterDriverVersion: 20.3.5.0 AdapterVendorID: 0x10de Add-ons: jsonview%40brh.numbera.com:2.4.0,%7B479f0278-2c34-4365-b9f0-1d328d0f0a40%7D:0.2.4,%7B0f34a7d3-0dcd-4926-a452-8b4b3fea06f7%7D:0.1,%7B6f4c858b-8034-4797-89f2-54dc2ff06404%7D:0.1,%7B806cbba4-1bd3-4916-9ddc-e719e9ca0cbf%7D:1.0.6,showmethepassword%40alejandrobrizuela.com.ar:2.1.1,%40testpilot-containers:8.1.2,%7B6e1ccc3a-6961-4b99-9455-e04cb868e7f9%7D:2.10.0,pagesaver%40pearlcrescent.com:0.8.2,%7B79b2e4de-8fb4-4ccc-b9f6-362ac2fb74b2%7D:2.2.0,screenshots%40mozilla.org:39.0.1,webcompat%40mozilla.org:113.0.0,webcompat-reporter%40mozilla.org:1.5.1,formautofill%40mozilla.org:1.0.1,pictureinpicture%40mozilla.org:1.0.0,google%40search.mozilla.org:1.4,bing%40search.mozilla.org:1.5,amazon%40search.mozilla.org:1.12,ddg%40search.mozilla.org:1.4,ebay%40search.mozilla.org:1.4,wikipedia%40search.mozilla.org:1.3,default-theme%40mozilla.org:1.3,addons-search-detection%40mozilla.com:2.0.0 AvailablePageFile: 9640660992 AvailablePhysicalMemory: 5560332288 AvailableSwapMemory: 8589930496 AvailableVirtualMemory: 12661223424 BackgroundTaskMode: 0 BuildID: 20230427175833 ContentSandboxCapabilities: 119 ContentSandboxCapable: 1 ContentSandboxLevel: 4 CrashTime: 1683622292 DOMFissionEnabled: 1 DOMIPCEnabled: 1 DesktopEnvironment: mate EMCheckCompatibility: true ExperimentalFeatures: accessibility.cache.enabled,devtools.inspector.compatibility.enabled GpuSandboxLevel: 0 GraphicsCriticalError: |[0][GFX1-]: glxtest: VA-API test failed: no supported VAAPI profile found. (t=1.75306) GraphicsNumActiveRenderers: 3 GraphicsNumRenderers: 3 HeadlessMode: 0 InstallTime: 1683551353 IsWayland: 0 LinuxUnderMemoryPressure: 0 Notes: Debian GNU/Linux 11 (bullseye)FP(D00-L1000-W0000000-T010) WR? WR+ libGL.so.1? libGL.so.1+ GL Context? GL Context+ EGL? EGL- ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: aurora SafeMode: 0 StartupCrash: 0 StartupTime: 1683617149 SubmittedFrom: Client TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20230427175833","version":"113.0","vendor":"Mozilla","displayVersion":"113.0b9","platformVersion":"113.0","xpcomAbi":"x86_64-gcc3","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":15931,"virtualMaxMB":null,"cpu":{"count":6,"cores":6,"vendor":"GenuineIntel","name":"Intel(R) Core(TM) i5-8400 CPU @ 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Failed downloading via ServiceRequest, status: 0, reason: error","media.gmp-gmpopenh264.lastUpdate":1678955825,"media.gmp-manager.lastCheck":1683534530,"media.gmp-manager.lastEmptyCheck":1683534530,"network.trr.strict_native_fallback":false,"security.enterprise_roots.enabled":true,"widget.content.allow-gtk-dark-theme":false,"widget.content.gtk-high-contrast.enabled":true},"sandbox":{"effectiveContentProcessLevel":4,"contentWin32kLockdownState":3},"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":false,"defaultSearchEngine":"other-StartPage - English UK","defaultSearchEngineData":{"loadPath":"[http]startpage.com/startpage---english-uk.xml","name":"StartPage - English UK","origin":"verified"}},"profile":{"creationDate":16519},"addons":{"activeAddons":{"{0f34a7d3-0dcd-4926-a452-8b4b3fea06f7}":{"version":"0.1","scope":1,"type":"extension","updateDay":17588,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Adds close right tabs 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Containers","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18967,"signedState":2},"[e-mail]":{"version":"1.5.1","scope":1,"type":"extension","updateDay":19403,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Report site compatibility issues on webcompat.com","name":"WebCompat Reporter","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17332},"[e-mail]":{"version":"1.0.0","scope":1,"type":"extension","updateDay":19460,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Fixes for web compatibility with Picture-in-Picture","name":"Picture-In-Picture","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18710},"[e-mail]":{"version":"39.0.1","scope":1,"type":"extension","updateDay":19460,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Take clips and screenshots from the Web and save them temporarily or permanently.","name":"Firefox Screenshots","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17322},"[e-mail]":{"version":"1.0.1","scope":1,"type":"extension","updateDay":19460,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":null,"name":"Form Autofill","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17407},"[e-mail]":{"version":"113.0.0","scope":1,"type":"extension","updateDay":19466,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Urgent post-release fixes for web compatibility.","name":"Web Compatibility Interventions","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":16973},"[e-mail]":{"version":"2.4.0","scope":1,"type":"extension","updateDay":19486,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"View JSON documents in the browser.","name":"JSONView","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":16519,"signedState":2}},"theme":{"id":"[e-mail]","blocklisted":false,"description":"Follow the operating system setting for buttons, menus, and windows.","name":"System theme — auto","userDisabled":false,"appDisabled":false,"version":"1.3","scope":4,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18528,"updateDay":18528},"activeGMPlugins":{"gmp-gmpopenh264":{"version":"1.8.1.2","userDisabled":false,"applyBackgroundUpdates":1}}}} Throttleable: 1 TotalPageFile: 25294757888 TotalPhysicalMemory: 16704827392 UptimeTS: 5142.81830393 Vendor: Mozilla Version: 113.0 useragent_locale: en-GB

Comment 65

[Rik]

Uhm... all the LF are lost when formatted for code view. Let's try again...

AdapterDeviceID: 0x128b
AdapterDriverVendor: mesa/nouveau
AdapterDriverVersion: 20.3.5.0
AdapterVendorID: 0x10de
Add-ons: jsonview%40brh.numbera.com:2.4.0,%7B479f0278-2c34-4365-b9f0-1d328d0f0a40%7D:0.2.4,%7B0f34a7d3-0dcd-4926-a452-8b4b3fea06f7%7D:0.1,%7B6f4c858b-8034-4797-89f2-54dc2ff06404%7D:0.1,%7B806cbba4-1bd3-4916-9ddc-e719e9ca0cbf%7D:1.0.6,showmethepassword%40alejandrobrizuela.com.ar:2.1.1,%40testpilot-containers:8.1.2,%7B6e1ccc3a-6961-4b99-9455-e04cb868e7f9%7D:2.10.0,pagesaver%40pearlcrescent.com:0.8.2,%7B79b2e4de-8fb4-4ccc-b9f6-362ac2fb74b2%7D:2.2.0,screenshots%40mozilla.org:39.0.1,webcompat%40mozilla.org:113.0.0,webcompat-reporter%40mozilla.org:1.5.1,formautofill%40mozilla.org:1.0.1,pictureinpicture%40mozilla.org:1.0.0,google%40search.mozilla.org:1.4,bing%40search.mozilla.org:1.5,amazon%40search.mozilla.org:1.12,ddg%40search.mozilla.org:1.4,ebay%40search.mozilla.org:1.4,wikipedia%40search.mozilla.org:1.3,default-theme%40mozilla.org:1.3,addons-search-detection%40mozilla.com:2.0.0
AvailablePageFile: 9640660992
AvailablePhysicalMemory: 5560332288
AvailableSwapMemory: 8589930496
AvailableVirtualMemory: 12661223424
BackgroundTaskMode: 0
BuildID: 20230427175833
ContentSandboxCapabilities: 119
ContentSandboxCapable: 1
ContentSandboxLevel: 4
CrashTime: 1683622292
DOMFissionEnabled: 1
DOMIPCEnabled: 1
DesktopEnvironment: mate
EMCheckCompatibility: true
ExperimentalFeatures: accessibility.cache.enabled,devtools.inspector.compatibility.enabled
GpuSandboxLevel: 0
GraphicsCriticalError: |[0][GFX1-]: glxtest: VA-API test failed: no supported VAAPI profile found. (t=1.75306)
GraphicsNumActiveRenderers: 3
GraphicsNumRenderers: 3
HeadlessMode: 0
InstallTime: 1683551353
IsWayland: 0
LinuxUnderMemoryPressure: 0
Notes: Debian GNU/Linux 11 (bullseye)FP(D00-L1000-W0000000-T010) WR? WR+ libGL.so.1? libGL.so.1+ GL Context? GL Context+ EGL? EGL-
ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
ProductName: Firefox
ReleaseChannel: aurora
SafeMode: 0
StartupCrash: 0
StartupTime: 1683617149
SubmittedFrom: Client
TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20230427175833","version":"113.0","vendor":"Mozilla","displayVersion":"113.0b9","platformVersion":"113.0","xpcomAbi":"x86_64-gcc3","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":15931,"virtualMaxMB":null,"cpu":{"count":6,"cores":6,"vendor":"GenuineIntel","name":"Intel(R) Core(TM) i5-8400 CPU @ 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windows.","name":"System theme — auto","userDisabled":false,"appDisabled":false,"version":"1.3","scope":4,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18528,"updateDay":18528},"activeGMPlugins":{"gmp-gmpopenh264":{"version":"1.8.1.2","userDisabled":false,"applyBackgroundUpdates":1}}}}
Throttleable: 1
TotalPageFile: 25294757888
TotalPhysicalMemory: 16704827392
UptimeTS: 5142.81830393
Vendor: Mozilla
Version: 113.0
useragent_locale: en-GB

Comment 66

[mikhail]

No, just attach a link here to the report

Comment 67

[Rik]

https://crash-stats.mozilla.org/report/index/87dc8ab9-c144-4b59-ad5d-ae6700230509

Comment 68

[Rik]

Another hang just now. I was developing a website, I pressed F5 on FF dev edition, and it hung X.

I've checked again a ping and samba access from another PC, with success. The PC is not delayed at all, it's only a matter of X.

Knowing for sure that FF it's only blocking X, I then "solved" the problem with the magic key: SysReq + R + E + I, where

• R let me gain raw access to the keyboard (I can see the caps lock let starts to respond)
• E + I kill anything except PID 1.

I could probably solve the problem with something less destructive (with this procedure I loose any unsaved work)... I'll reason on that soon...
In the meantime I want to prepare myself for the next experiment allowing a 2nd PC to access mine via SSH so I can try a less destructive "pkill firefox". If that alone it's enough to regain access to X I could even think to make a dedicated kill switch for FF or a dedicated watchdog.

See you next hang! :-/

Comment 69

[:gerard-majax]

If you can SSH, then why not trying to attach gdb and/or strace?

Comment 70

[Rik]

I can access via ssh only from now on, not before because I didn't have an ssh server installed. However I'm not very happy to publish strace/gdb online, at least not without redacting the output.

Comment 71

[Rik]

Another freeze, again with FF dev edition.
I clicked a row in the dev tools to check the css and it stopped.
Differently from UHD 630, with the NVidia 710 I have few seconds to realize the freeze is to happen because for some seconds it keeps working slowing down rapidly till complete paralysis.

Crash report here:
https://crash-stats.mozilla.org/report/index/67f7dd15-7050-4849-b21e-7eb010230511

While the DE (not the OS) was frozen, I made a connection to the PC via SSH and I had time to check this:
top: 5% cpu
iotop: normal operations with kworker and all other stuff running as usual.

After a while FF showed the window about the crash report and the DE was unfrozen. I'm writing this report from the same X session, no reboot.

Dump: This morning I set ulimit -c unlimited, but it seems this event didn't trigger any dump creation. Just ot be sure I've searched for core.<pid> in the whole fs and didn't find any.

Comment 72

[Rik]

Wait... the crash report is talking about the ESR version... so the crash didn't happened in the FF Dev edition as I thought! Strange because the ESR was probably opened but not in use (probably even minimized... I can't remember). So it crashed by itself without me doing nothing with keyboard/mouse. On the contrary I was working on FF dev edition and the problem fool me to think happened there when I clicked a row of the DOM in the dev tools... but apparently was only coincidence and the problem today was the ESR version (yesterday was with FF Dev edition instead).

So, the freeze happens both with the ESR by mozilla and the Dev Edition (Mozilla build as well) and doesn't matter if interacting directly with them or not (keeping them opened is enough).

Comment 73

[:gerard-majax]

(In reply to Rik from comment #70)

I can access via ssh only from now on, not before because I didn't have an ssh server installed. However I'm not very happy to publish strace/gdb online, at least not without redacting the output.

I'm not sure what concerns you about a gdb stack ?

Comment 74

[Rik]

Because of security reasons.
Anyway this case didn't generate any dump so I've nothing to show.
In any case which exact command would you like me to use? It's enough a backtrace?
Security apart, the problem is that a core dump it's easy: when it happens it happens and in the meantime I work as usual opening/closing FF at will. A different think is to start any FF version (and I open/close often) with GDB daily: that's quite annoying.

Comment 75

[Rik]

Again, doing the same thing: clicking a row in the DOM, the same ad before, but this time it's really FF Dev Edition that crashed.
https://crash-stats.mozilla.org/report/index/95d43f19-e305-42d4-b06f-9c4860230511

Comment 76

[Rik]

Unfortunately it's not repetible though...

Comment 77

[:gerard-majax]

(In reply to Rik from comment #74)

Because of security reasons.
Anyway this case didn't generate any dump so I've nothing to show.
In any case which exact command would you like me to use? It's enough a backtrace?
Security apart, the problem is that a core dump it's easy: when it happens it happens and in the meantime I work as usual opening/closing FF at will. A different think is to start any FF version (and I open/close often) with GDB daily: that's quite annoying.

gdb attach to a pid and bt should not have any security risk ...

Comment 78

[Darkspirit]

Do freezes also occur with Gnome?
Are you still using MATE? (bug 1664798 comment 142) With compositor enabled or disabled? Can you test different backends/vsync settings?

IIRC, KDE on Nouveau regularily froze my Debian Bullseye desktop back then and Gnome did not.
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10752 (bug 1765487 comment 1) had some fixes for Nouveau.

Comment 79

[Rik]

(In reply to Alexandre LISSY :gerard-majax from comment #77)

(In reply to Rik from comment #74)

Because of security reasons.
Anyway this case didn't generate any dump so I've nothing to show.
In any case which exact command would you like me to use? It's enough a backtrace?
Security apart, the problem is that a core dump it's easy: when it happens it happens and in the meantime I work as usual opening/closing FF at will. A different think is to start any FF version (and I open/close often) with GDB daily: that's quite annoying.

gdb attach to a pid and bt should not have any security risk ...

In preparation for the next freeze:

1. I've set ulimit -c unlimited and I've set a specific dir 777 for the output so I don't have permission problem for sure nor I have to search for the core dump. Let's see if it get generated.
2. I'm running FF ESR with gdb. It's a bit annoying but I hope in a crash in a couple of day.
3. The same for FF Dev edition
4. In case the freeze would happen in a moment I don't have FF under gdb , I'll try an attach <pid> + bt to see if there is something of use.
   Any suggestion?

(In reply to Darkspirit from comment #78)

Do freezes also occur with Gnome?
Are you still using MATE? (bug 1664798 comment 142) With compositor enabled or disabled? Can you test different backends/vsync settings?

IIRC, KDE on Nouveau regularily froze my Debian Bullseye desktop back then and Gnome did not.
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10752 (bug 1765487 comment 1) had some fixes for Nouveau.

I'm still using Mate and is not likely to change in the forseeable future.
I have the same problem with or without a compositor. I did a test months ago. However generally I don't use any compositor.

Comment 80

[Rik]

Attachment: gdb info

I've had a small inconvenient but not a freeze:

Comment 81

[Rik]

I've had a small inconvenient but not a freeze:

....
[New Thread 0x7fffc3aff700 (LWP 37982)]
[New Thread 0x7fffc5e04700 (LWP 37983)]
[New Thread 0x7fffc8b5f700 (LWP 37984)]
[New Thread 0x7fffd183c700 (LWP 37985)]
[New Thread 0x7fffc8ba0700 (LWP 37986)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffc3aff700 (LWP 37982)]
0x000004ac54020572 in ?? ()
(gdb) bt
#0 0x000004ac54020572 in ?? ()
#1 0x0000000000000017 in ?? ()
#2 0x0000000000000020 in ?? ()
#3 0x00007fffb5dd15d0 in ?? ()
#4 0x0000000000000000 in ?? ()
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
[Switching to Thread 0x7fffe617d700 (LWP 33251)]
__libc_send (flags=<optimized out>, len=31, buf=0x7fffb474a000, fd=125) at ../sysdeps/unix/sysv/linux/send.c:28
28 ../sysdeps/unix/sysv/linux/send.c: No such file or directory.
(gdb) c
Continuing.
[New Thread 0x7fffc825f700 (LWP 38037)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffc3aff700 (LWP 37982)]
0x000004ac54020d02 in ?? ()
(gdb) bt
#0 0x000004ac54020d02 in ?? ()
#1 0x00007fffc3afbc58 in ?? ()
#2 0x00007fffb9aa4900 in ?? ()
#3 0x00007fffc3afbc47 in ?? ()
#4 0x00007fffc3afbbf8 in ?? ()
#5 0x0000000400000258 in ?? ()
#6 0x00007ffff137b2fe in ?? () from /opt/firefox/libxul.so
#7 0x0000000000000000 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffcb7d5700 (LWP 37968) exited]
[Thread 0x7fffc8b5f700 (LWP 37984) exited]
[Thread 0x7fffc8ba0700 (LWP 37986) exited]
....

That happened clicking a row in the dom in dev tools. However I don't this it could be the problem because after a "c" in gdb it's all still alive and the system didn't freeze not even for a second.

Comment 82

[Rik]

I can see it's not uncommon that when I click something in the DOM in gdb I get
...
[New Thread 0x7fffad2fe700 (LWP 38429)]
[New Thread 0x7fffc825f700 (LWP 38430)]
Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffd18ff700 (LWP 38424) exited]
[Thread 0x7fffcaf7a700 (LWP 38423) exited]

(gdb) bt
#0 0x00007ffff7b7896f in __GI___poll (fds=0x7fffd2a968c0, nfds=7, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007fffeff180c6 in ?? () from /opt/firefox/libxul.so
#2 0x00007ffff5cb00ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ffff5cb01cf in g_main_context_iteration ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007fffefcdca4e in ?? () from /opt/firefox/libxul.so
#5 0x00007fffefd1e03b in ?? () from /opt/firefox/libxul.so
#6 0x00007ffff07d7ecd in ?? () from /opt/firefox/libxul.so
#7 0x00007ffff0ec9549 in ?? () from /opt/firefox/libxul.so
#8 0x00007fffeeb773c1 in ?? () from /opt/firefox/libxul.so
#9 0x00007fffeebead13 in ?? () from /opt/firefox/libxul.so
#10 0x00007fffeebeb5fe in ?? () from /opt/firefox/libxul.so
#11 0x00007fffeebeba39 in ?? () from /opt/firefox/libxul.so
#12 0x00005555555cc816 in _start ()
(gdb) c
Continuing.
[New Thread 0x7fffd183c700 (LWP 38486)]

Comment 83

[:gerard-majax]

SIGILL ?! Would be nice if you had the symbols.

Comment 84

[Julien Cristau [:jcristau]]

You can type handle SIGILL nostop noprint at the gdb prompt to make it ignore these, since they're apparently unrelated to what you're looking for.

Comment 85

[Rik]

I've been with DE frozen up to now so I couldn't see your comments. However it seems I can decently replicate the problem now.
I can do it going here
https://labs.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=innovation
and with dev tools open, clicking dom row at random.

At first I had the DE blocked but the mouse and keyboard were still running.
With ALT+TAB I switched on the terminal where gdb was running so I could press "c" to continue the loop of death

[New Thread 0x7fffe457c700 (LWP 39027)]

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
[Switching to Thread 0x7fffe617d700 (LWP 33251)]
__libc_send (flags=<optimized out>, len=24, buf=0x7fffabda5000, fd=175) at ../sysdeps/unix/sysv/linux/send.c:28
28 ../sysdeps/unix/sysv/linux/send.c: No such file or directory.
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffabdb7000, fd=172)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.
[New Thread 0x7fffca23c700 (LWP 39208)]
[New Thread 0x7fff9f572700 (LWP 39209)]

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffabc40000, fd=171)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.
[New Thread 0x7fff9f371700 (LWP 39210)]
[New Thread 0x7fff9f170700 (LWP 39211)]

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffd2ab0000, fd=170)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=31, buf=0x7fff9168d000, fd=132)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffa753f000, fd=127) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fff913fe000, fd=61) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fff9dffd000, fd=109) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=31, buf=0x7fffa6fea000, fd=120) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffa74ee000, fd=126) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) c
Continuing.

HERE I GOT THE COMPLETE FREEZE including mouse and keyboard.

I then proceed via ssh attaching gdb to the pid of FF.
"c" didn't work so I used "return"

(gdb) attach 33116
Attaching to process 33116
[New LWP 33118]
[New LWP 33119]
[New LWP 33120]
[New LWP 33121]
[New LWP 33122]
[New LWP 33123]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f627c60f96f in __GI___poll (fds=0x557c0187a370, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.

(gdb) frame
#0 0x00007f627c60f96f in __GI___poll (fds=0x557c0187a370, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb) return
Make __GI___poll return now? (y or n) y
#0 0x0000557bfb85792f in ?? ()
(gdb) return
Make selected stack frame return now? (y or n) y
#0 0x0000557bfb857c8d in ?? ()
(gdb) return
Make selected stack frame return now? (y or n) y
#0 0x0000557bfb5d9895 in ?? ()
(gdb) return
Make selected stack frame return now? (y or n) y
#0 0x0000557bfb5dd585 in ?? ()
(gdb) return
Make selected stack frame return now? (y or n) y
#0 0x0000557bfb3f790c in ?? ()
(gdb) return
Make selected stack frame return now? (y or n) y
#0 0x00007f627c543d0a in __libc_start_main (main=0x557bfb3f78e0, argc=1, argv=0x7ffec92634f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7ffec92634e8) at ../csu/libc-start.c:308
308 ../csu/libc-start.c: No such file or directory.
(gdb) return
warning: Function does not return normally to caller.
Make __libc_start_main return now? (y or n) y
#0 0x0000557bfb3fcf4a in ?? ()
(gdb) return
Make selected stack frame return now? (y or n) y
Cannot pop the initial frame.
(gdb) return
Make selected stack frame return now? (y or n) y
Cannot pop the initial frame.
(gdb) return
Make selected stack frame return now? (y or n) y
Cannot pop the initial frame.
(gdb) c
Continuing.

Thread 1 "gdb" received signal SIGSEGV, Segmentation fault.
0x0000557bfb3fcf4a in ?? ()
(gdb) c
Continuing.

Thread 1 "gdb" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) c
Continuing.
Couldn't get registers: No such process.
Couldn't get registers: No such process.
(gdb) [Thread 0x7f62737fe700 (LWP 33122) exited]
[Thread 0x7f6273fff700 (LWP 33121) exited]
[Thread 0x7f6270162700 (LWP 33120) exited]
[Thread 0x7f6278963700 (LWP 33119) exited]
[Thread 0x7f6279696180 (LWP 33116) exited]
[Thread 0x7f6272ffd700 (LWP 33123) exited]

On the PC FF closed and I regain a full working DE.

==== The full sequence from the gdb log on the PC

Continuing.
[Thread 0x7fffca2ff700 (LWP 35646) exited]
[New Thread 0x7fffca2ff700 (LWP 36780)]
[New Thread 0x7fffc8cbe700 (LWP 36781)]
[Thread 0x7fffca2ff700 (LWP 36780) exited]
[Thread 0x7fffc8cbe700 (LWP 36781) exited]
[New Thread 0x7fffc8cbe700 (LWP 36799)]
[New Thread 0x7fffca2ff700 (LWP 36800)]
[New Thread 0x7fffc86be700 (LWP 36801)]
[New Thread 0x7fffc8ba0700 (LWP 36802)]
[New Thread 0x7fffc3aff700 (LWP 36806)]
[New Thread 0x7fffc957e700 (LWP 36807)]
[New Thread 0x7fffc9962700 (LWP 36808)]
[New Thread 0x7fffc8a80700 (LWP 36809)]
[New Thread 0x7fffcaffc700 (LWP 36810)]
[Thread 0x7fffc3aff700 (LWP 36806) exited]

Thread 1 "firefox-bin" received signal SIGINT, Interrupt.
0x00007ffff7b7896f in __GI___poll (fds=0x7fffd2a968c0, nfds=7, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c
#0 0x00007ffff7b7896f in __GI___poll (fds=0x7fffd2a968c0, nfds=7, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007fffeff180c6 in ?? () from /opt/firefox/libxul.so
#2 0x00007ffff5cb00ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ffff5cb01cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007fffefcdca4e in ?? () from /opt/firefox/libxul.so
#5 0x00007fffefd1e03b in ?? () from /opt/firefox/libxul.so
#6 0x00007ffff07d7ecd in ?? () from /opt/firefox/libxul.so
#7 0x00007ffff0ec9549 in ?? () from /opt/firefox/libxul.so
#8 0x00007fffeeb773c1 in ?? () from /opt/firefox/libxul.so
#9 0x00007fffeebead13 in ?? () from /opt/firefox/libxul.so
#10 0x00007fffeebeb5fe in ?? () from /opt/firefox/libxul.so
#11 0x00007fffeebeba39 in ?? () from /opt/firefox/libxul.so
#12 0x00005555555cc816 in _start ()
Continuing.
[Thread 0x7fffc8ba0700 (LWP 36802) exited]
[Thread 0x7fffc8cbe700 (LWP 36799) exited]
[Thread 0x7fffc957e700 (LWP 36807) exited]
[Thread 0x7fffc9962700 (LWP 36808) exited]
[Thread 0x7fffc8a80700 (LWP 36809) exited]
[Thread 0x7fffca2ff700 (LWP 36800) exited]
[Thread 0x7fffd0bff700 (LWP 36425) exited]
[Thread 0x7fffcaffc700 (LWP 36810) exited]
[Thread 0x7fffc86be700 (LWP 36801) exited]
[New Thread 0x7fffcaffc700 (LWP 36922)]
[New Thread 0x7fffc86be700 (LWP 36923)]
[New Thread 0x7fffd0bff700 (LWP 36929)]
[New Thread 0x7fffca2ff700 (LWP 36930)]
[Thread 0x7fffc86be700 (LWP 36923) exited]
[New Thread 0x7fffc86be700 (LWP 36938)]
[New Thread 0x7fffc8a80700 (LWP 36939)]
[New Thread 0x7fffc9962700 (LWP 36940)]
[New Thread 0x7fffc957e700 (LWP 36941)]
[New Thread 0x7fffc8cbe700 (LWP 36942)]
[New Thread 0x7fffc8ba0700 (LWP 36943)]
[New Thread 0x7fffc825f700 (LWP 36944)]
[New Thread 0x7fffcaf7a700 (LWP 36945)]
[Thread 0x7fffc86be700 (LWP 36938) exited]
[Thread 0x7fffc9962700 (LWP 36940) exited]
[Thread 0x7fffcaf7a700 (LWP 36945) exited]
[Thread 0x7fffc825f700 (LWP 36944) exited]
[Thread 0x7fffc957e700 (LWP 36941) exited]
[Thread 0x7fffc8cbe700 (LWP 36942) exited]
[Thread 0x7fffc8a80700 (LWP 36939) exited]
[Thread 0x7fffc8ba0700 (LWP 36943) exited]
[Thread 0x7fffca2ff700 (LWP 36930) exited]
[Thread 0x7fffd0bff700 (LWP 36929) exited]
[Thread 0x7fffcaffc700 (LWP 36922) exited]
[New Thread 0x7fffcaffc700 (LWP 37009)]
[New Thread 0x7fffd0bff700 (LWP 37010)]
[Thread 0x7fffd0bff700 (LWP 37010) exited]
[Thread 0x7fffcaffc700 (LWP 37009) exited]
[Thread 0x7fffd18ff700 (LWP 35591) exited]
[New Thread 0x7fffd18ff700 (LWP 37046)]
[New Thread 0x7fffcaffc700 (LWP 37053)]
[New Thread 0x7fffd0bff700 (LWP 37056)]
[New Thread 0x7fffca2ff700 (LWP 37068)]
[New Thread 0x7fffc8ba0700 (LWP 37069)]
[New Thread 0x7fffc8a80700 (LWP 37070)]
[New Thread 0x7fffc8cbe700 (LWP 37071)]
[New Thread 0x7fffc957e700 (LWP 37083)]
[New Thread 0x7fffc825f700 (LWP 37087)]
[New Thread 0x7fffcaf7a700 (LWP 37094)]
[New Thread 0x7fffc9962700 (LWP 37095)]
[New Thread 0x7fffc86be700 (LWP 37096)]
[New Thread 0x7fffd18be700 (LWP 37097)]
[New Thread 0x7fffcb7d5700 (LWP 37098)]
[Thread 0x7fffc9962700 (LWP 37095) exited]
[New Thread 0x7fffc9962700 (LWP 37099)]
[Detaching after fork from child process 37100]
[New Thread 0x7fffc9962700 (LWP 37136)]
[Thread 0x7fffc9962700 (LWP 37099) exited]
[Thread 0x7fffcb7d5700 (LWP 37098) exited]
[Thread 0x7fffd18be700 (LWP 37097) exited]
[Thread 0x7fffc86be700 (LWP 37096) exited]
[Thread 0x7fffc957e700 (LWP 37083) exited]
[Thread 0x7fffc8cbe700 (LWP 37071) exited]
[Thread 0x7fffc8a80700 (LWP 37070) exited]
[Thread 0x7fffc8ba0700 (LWP 37069) exited]
[Thread 0x7fffca2ff700 (LWP 37068) exited]
[Thread 0x7fffd18ff700 (LWP 37046) exited]
[New Thread 0x7fffc8a80700 (LWP 37149)]
[Detaching after fork from child process 37167]
[New Thread 0x7fffc86be700 (LWP 37168)]
[New Thread 0x7fffcb7d5700 (LWP 37182)]
[Detaching after fork from child process 37184]
[New Thread 0x7fffd18be700 (LWP 37185)]
[New Thread 0x7fffc8cbe700 (LWP 37199)]
[Thread 0x7fffc9962700 (LWP 37136) exited]
[Thread 0x7fffc5e04700 (LWP 36551) exited]
[Thread 0x7fffcb7d5700 (LWP 37182) exited]
[New Thread 0x7fffcb7d5700 (LWP 37214)]
[New Thread 0x7fffc9962700 (LWP 37215)]
[New Thread 0x7fffc957e700 (LWP 37219)]
[Thread 0x7fffc957e700 (LWP 37219) exited]
[Thread 0x7fffcb7d5700 (LWP 37214) exited]
[Thread 0x7fffc8cbe700 (LWP 37199) exited]
[New Thread 0x7fffc8cbe700 (LWP 37233)]
[New Thread 0x7fffc957e700 (LWP 37234)]
[Thread 0x7fffc9962700 (LWP 37215) exited]
[Thread 0x7fffd183c700 (LWP 36466) exited]
[Thread 0x7fffc8b5f700 (LWP 36412) exited]
[Thread 0x7fffe457c700 (LWP 35649) exited]
[Thread 0x7fffc957e700 (LWP 37234) exited]
[Thread 0x7fffc8cbe700 (LWP 37233) exited]
[New Thread 0x7fffc8cbe700 (LWP 37256)]
[New Thread 0x7fffc957e700 (LWP 37261)]
[New Thread 0x7fffc9962700 (LWP 37270)]
[New Thread 0x7fffcb7d5700 (LWP 37274)]
[New Thread 0x7fffd18ff700 (LWP 37275)]
[New Thread 0x7fffc8ba0700 (LWP 37276)]
[New Thread 0x7fffca2ff700 (LWP 37277)]
[New Thread 0x7fffc86ff700 (LWP 37278)]
[New Thread 0x7fffd165b700 (LWP 37283)]
[New Thread 0x7fffe2a6c700 (LWP 37284)]
[New Thread 0x7fffe60fb700 (LWP 37285)]
[New Thread 0x7fffcc35d700 (LWP 37286)]
[Thread 0x7fffc957e700 (LWP 37261) exited]
[Detaching after fork from child process 37287]
[New Thread 0x7fffc957e700 (LWP 37288)]
[New Thread 0x7fffe5a5c700 (LWP 37303)]
[New Thread 0x7fffe2aad700 (LWP 37304)]
[Detaching after fork from child process 37321]
[New Thread 0x7fffc8c3c700 (LWP 37322)]
[New Thread 0x7fffaf5fb700 (LWP 37348)]
[Thread 0x7fffaf5fb700 (LWP 37348) exited]
[Thread 0x7fffcc35d700 (LWP 37286) exited]
[Thread 0x7fffe60fb700 (LWP 37285) exited]
[Thread 0x7fffc9962700 (LWP 37270) exited]
[Thread 0x7fffe2a6c700 (LWP 37284) exited]
[Thread 0x7fffd165b700 (LWP 37283) exited]
[Thread 0x7fffe2aad700 (LWP 37304) exited]
[Thread 0x7fffc8cbe700 (LWP 37256) exited]
[Thread 0x7fffe5a5c700 (LWP 37303) exited]
[Thread 0x7fffd0bff700 (LWP 37056) exited]
[Thread 0x7fffc86ff700 (LWP 37278) exited]
[Thread 0x7fffd18ff700 (LWP 37275) exited]
[Thread 0x7fffc825f700 (LWP 37087) exited]
[Thread 0x7fffc8ba0700 (LWP 37276) exited]
[Thread 0x7fffcaf7a700 (LWP 37094) exited]
[Thread 0x7fffca2ff700 (LWP 37277) exited]
[Thread 0x7fffcb7d5700 (LWP 37274) exited]
[New Thread 0x7fffcb7d5700 (LWP 37766)]
[Thread 0x7fffcb7d5700 (LWP 37766) exited]
[New Thread 0x7fffcb7d5700 (LWP 37923)]
[New Thread 0x7fffca2ff700 (LWP 37924)]
[Thread 0x7fffca2ff700 (LWP 37924) exited]
[Thread 0x7fffcb7d5700 (LWP 37923) exited]
[New Thread 0x7fffcb7d5700 (LWP 37968)]
[New Thread 0x7fffca2ff700 (LWP 37969)]
[New Thread 0x7fffcaf7a700 (LWP 37970)]
[New Thread 0x7fffe5a99700 (LWP 37973)]
[New Thread 0x7fffaf5fb700 (LWP 37974)]
[New Thread 0x7fffaf3fa700 (LWP 37975)]
[New Thread 0x7fffaf7fc700 (LWP 37976)]
[New Thread 0x7fffe457c700 (LWP 37977)]
[New Thread 0x7fffc3aff700 (LWP 37982)]
[New Thread 0x7fffc5e04700 (LWP 37983)]
[New Thread 0x7fffc8b5f700 (LWP 37984)]
[New Thread 0x7fffd183c700 (LWP 37985)]
[New Thread 0x7fffc8ba0700 (LWP 37986)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffc3aff700 (LWP 37982)]
0x000004ac54020572 in ?? ()
#0 0x000004ac54020572 in ?? ()
#1 0x0000000000000017 in ?? ()
#2 0x0000000000000020 in ?? ()
#3 0x00007fffb5dd15d0 in ?? ()
#4 0x0000000000000000 in ?? ()
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
[Switching to Thread 0x7fffe617d700 (LWP 33251)]
__libc_send (flags=<optimized out>, len=31, buf=0x7fffb474a000, fd=125) at ../sysdeps/unix/sysv/linux/send.c:28
28 ../sysdeps/unix/sysv/linux/send.c: No such file or directory.
Continuing.
[New Thread 0x7fffc825f700 (LWP 38037)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffc3aff700 (LWP 37982)]
0x000004ac54020d02 in ?? ()
#0 0x000004ac54020d02 in ?? ()
#1 0x00007fffc3afbc58 in ?? ()
#2 0x00007fffb9aa4900 in ?? ()
#3 0x00007fffc3afbc47 in ?? ()
#4 0x00007fffc3afbbf8 in ?? ()
#5 0x0000000400000258 in ?? ()
#6 0x00007ffff137b2fe in ?? () from /opt/firefox/libxul.so
#7 0x0000000000000000 in ?? ()
Continuing.
[Thread 0x7fffcb7d5700 (LWP 37968) exited]
[Thread 0x7fffc8b5f700 (LWP 37984) exited]
[Thread 0x7fffc8ba0700 (LWP 37986) exited]
[Thread 0x7fffd183c700 (LWP 37985) exited]
[Thread 0x7fffe457c700 (LWP 37977) exited]
[Thread 0x7fffcaffc700 (LWP 37053) exited]
[Thread 0x7fffca2ff700 (LWP 37969) exited]
[New Thread 0x7fffd18ff700 (LWP 38090)]
[New Thread 0x7fffad4ff700 (LWP 38092)]
[Thread 0x7fffad4ff700 (LWP 38092) exited]
[New Thread 0x7fffca2ff700 (LWP 38099)]
[New Thread 0x7fffd183c700 (LWP 38105)]
[New Thread 0x7fffc8ba0700 (LWP 38106)]
[Thread 0x7fffca2ff700 (LWP 38099) exited]
[Thread 0x7fffd18ff700 (LWP 38090) exited]
[Thread 0x7fffc825f700 (LWP 38037) exited]
[Thread 0x7fffd183c700 (LWP 38105) exited]
[New Thread 0x7fffd183c700 (LWP 38125)]
[Thread 0x7fffd183c700 (LWP 38125) exited]
[New Thread 0x7fffd183c700 (LWP 38146)]
[New Thread 0x7fffc825f700 (LWP 38147)]
[Thread 0x7fffd183c700 (LWP 38146) exited]
[Thread 0x7fffc825f700 (LWP 38147) exited]
[New Thread 0x7fffc825f700 (LWP 38166)]
[New Thread 0x7fffd183c700 (LWP 38177)]
[New Thread 0x7fffd18ff700 (LWP 38178)]
[Thread 0x7fffc825f700 (LWP 38166) exited]
[Thread 0x7fffd18ff700 (LWP 38178) exited]
[Thread 0x7fffd183c700 (LWP 38177) exited]
[Thread 0x7fffcaf7a700 (LWP 37970) exited]
[New Thread 0x7fffcaf7a700 (LWP 38205)]
[New Thread 0x7fffd183c700 (LWP 38207)]
[Thread 0x7fffcaf7a700 (LWP 38205) exited]
[Thread 0x7fffd183c700 (LWP 38207) exited]
[New Thread 0x7fffd183c700 (LWP 38226)]
[New Thread 0x7fffcaf7a700 (LWP 38228)]
[New Thread 0x7fffd18ff700 (LWP 38229)]
[New Thread 0x7fffc825f700 (LWP 38234)]
[Detaching after fork from child process 38249]
[New Thread 0x7fffe5b01700 (LWP 38251)]
[New Thread 0x7fffad4ff700 (LWP 38254)]
[New Thread 0x7fffaccff700 (LWP 38255)]
[New Thread 0x7fffac7ff700 (LWP 38256)]
[New Thread 0x7fffca2ff700 (LWP 38263)]
[Thread 0x7fffc825f700 (LWP 38234) exited]
[Thread 0x7fffd18ff700 (LWP 38229) exited]
[Thread 0x7fffd183c700 (LWP 38226) exited]
[Thread 0x7fffcaf7a700 (LWP 38228) exited]
[New Thread 0x7fffcaf7a700 (LWP 38355)]
[Thread 0x7fffcaf7a700 (LWP 38355) exited]
[New Thread 0x7fffcaf7a700 (LWP 38376)]
[New Thread 0x7fffd183c700 (LWP 38416)]
[Thread 0x7fffcaf7a700 (LWP 38376) exited]
[New Thread 0x7fffcaf7a700 (LWP 38422)]
[Thread 0x7fffcaf7a700 (LWP 38422) exited]
[New Thread 0x7fffcaf7a700 (LWP 38423)]
[New Thread 0x7fffd18ff700 (LWP 38424)]
[New Thread 0x7fffad2fe700 (LWP 38429)]
[New Thread 0x7fffc825f700 (LWP 38430)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.
[Thread 0x7fffd18ff700 (LWP 38424) exited]
[Thread 0x7fffcaf7a700 (LWP 38423) exited]
[Thread 0x7fffc825f700 (LWP 38430) exited]
[Thread 0x7fffd183c700 (LWP 38416) exited]
[Thread 0x7fffad2fe700 (LWP 38429) exited]

Thread 1 "firefox-bin" received signal SIGINT, Interrupt.
[Switching to Thread 0x7ffff7a84780 (LWP 33217)]
0x00007ffff7b7896f in __GI___poll (fds=0x7fffd2a968c0, nfds=7, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
29 ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
#0 0x00007ffff7b7896f in __GI___poll (fds=0x7fffd2a968c0, nfds=7, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007fffeff180c6 in ?? () from /opt/firefox/libxul.so
#2 0x00007ffff5cb00ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ffff5cb01cf in g_main_context_iteration ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007fffefcdca4e in ?? () from /opt/firefox/libxul.so
#5 0x00007fffefd1e03b in ?? () from /opt/firefox/libxul.so
#6 0x00007ffff07d7ecd in ?? () from /opt/firefox/libxul.so
#7 0x00007ffff0ec9549 in ?? () from /opt/firefox/libxul.so
#8 0x00007fffeeb773c1 in ?? () from /opt/firefox/libxul.so
#9 0x00007fffeebead13 in ?? () from /opt/firefox/libxul.so
#10 0x00007fffeebeb5fe in ?? () from /opt/firefox/libxul.so
#11 0x00007fffeebeba39 in ?? () from /opt/firefox/libxul.so
#12 0x00005555555cc816 in _start ()
Continuing.
[New Thread 0x7fffd183c700 (LWP 38486)]
[New Thread 0x7fffc825f700 (LWP 38497)]
[New Thread 0x7fffcaf7a700 (LWP 38501)]
[Thread 0x7fffcaf7a700 (LWP 38501) exited]
[Thread 0x7fffc825f700 (LWP 38497) exited]
[Thread 0x7fffd183c700 (LWP 38486) exited]
[New Thread 0x7fffd183c700 (LWP 38531)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffc3aff700 (LWP 37982)]
0x000004ac54020d02 in ?? ()
Continuing.
[New Thread 0x7fffc825f700 (LWP 38539)]
[Thread 0x7fffc825f700 (LWP 38539) exited]
[New Thread 0x7fffc825f700 (LWP 38540)]
[New Thread 0x7fffcaf7a700 (LWP 38541)]
[New Thread 0x7fffd18ff700 (LWP 38549)]
[Thread 0x7fffc825f700 (LWP 38540) exited]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.
[Thread 0x7fffcaf7a700 (LWP 38541) exited]
[Thread 0x7fffd183c700 (LWP 38531) exited]
[Thread 0x7fffd18ff700 (LWP 38549) exited]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.
[New Thread 0x7fffd18ff700 (LWP 38573)]
[New Thread 0x7fffd183c700 (LWP 38574)]
[New Thread 0x7fffcaf7a700 (LWP 38575)]
[New Thread 0x7fffc825f700 (LWP 38576)]
[Thread 0x7fffc86be700 (LWP 37168) exited]
[New Thread 0x7fffc8b5f700 (LWP 38581)]
[New Thread 0x7fffe457c700 (LWP 38591)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020572 in ?? ()
Continuing.
[Detaching after fork from child process 38604]
[New Thread 0x7fffcb7d5700 (LWP 38606)]
[New Thread 0x7fffcaffc700 (LWP 38619)]
[New Thread 0x7fffc86ff700 (LWP 38620)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.
[Thread 0x7fffd183c700 (LWP 38574) exited]
[Thread 0x7fffc86ff700 (LWP 38620) exited]
[Thread 0x7fffcaf7a700 (LWP 38575) exited]
[Thread 0x7fffc8b5f700 (LWP 38581) exited]
[Thread 0x7fffe457c700 (LWP 38591) exited]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.
[Thread 0x7fffcaffc700 (LWP 38619) exited]
[Thread 0x7fffd18ff700 (LWP 38573) exited]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.
[Thread 0x7fffc825f700 (LWP 38576) exited]
[New Thread 0x7fffc825f700 (LWP 38656)]
[New Thread 0x7fffcaffc700 (LWP 38657)]
[New Thread 0x7fffd18ff700 (LWP 38658)]
[New Thread 0x7fffe457c700 (LWP 38659)]
[Thread 0x7fffc957e700 (LWP 37288) exited]
[New Thread 0x7fffc8b5f700 (LWP 38661)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020572 in ?? ()
Continuing.
[New Thread 0x7fffcaf7a700 (LWP 38674)]
[Detaching after fork from child process 38683]
[New Thread 0x7fffc86ff700 (LWP 38685)]
[New Thread 0x7fffd183c700 (LWP 38698)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020d02 in ?? ()
Continuing.
[New Thread 0x7fffc957e700 (LWP 38705)]
[Thread 0x7fffc825f700 (LWP 38656) exited]
[Thread 0x7fffc957e700 (LWP 38705) exited]
[Thread 0x7fffcaffc700 (LWP 38657) exited]
[Thread 0x7fffd183c700 (LWP 38698) exited]
[Thread 0x7fffc8b5f700 (LWP 38661) exited]
[Thread 0x7fffcaf7a700 (LWP 38674) exited]
[Thread 0x7fffd18ff700 (LWP 38658) exited]
[New Thread 0x7fffd18ff700 (LWP 38713)]
[Thread 0x7fffc8c3c700 (LWP 37322) exited]
[New Thread 0x7fffcaf7a700 (LWP 38720)]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020572 in ?? ()
Continuing.
[New Thread 0x7fffc8b5f700 (LWP 38730)]
[New Thread 0x7fffd183c700 (LWP 38732)]
[New Thread 0x7fffcaffc700 (LWP 38740)]
[Detaching after fork from child process 38741]
[New Thread 0x7fffc8c3c700 (LWP 38742)]
[Thread 0x7fffca2ff700 (LWP 38263) exited]

Thread 487 "DOM Worker" received signal SIGILL, Illegal instruction.
0x000004ac54020572 in ?? ()
Continuing.
[Thread 0x7fffc3aff700 (LWP 37982) exited]
[Detaching after fork from child process 38776]
[New Thread 0x7fffc957e700 (LWP 38777)]
[Thread 0x7fffcb7d5700 (LWP 38606) exited]
[Detaching after fork from child process 38813]
[New Thread 0x7fffc825f700 (LWP 38814)]
[Thread 0x7fffc86ff700 (LWP 38685) exited]
[New Thread 0x7fffc86be700 (LWP 38847)]
[Thread 0x7fffc99fd700 (LWP 34338) exited]
[New Thread 0x7fffc99fd700 (LWP 38848)]
[Detaching after fork from child process 38849]
[New Thread 0x7fffd0bff700 (LWP 38850)]
[New Thread 0x7fffe5a5c700 (LWP 38866)]
[New Thread 0x7fffc3aff700 (LWP 38869)]
[New Thread 0x7fffc8cbe700 (LWP 38870)]

Thread 561 "DOM Worker" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffc3aff700 (LWP 38869)]
0x000004ac542f0572 in ?? ()
Continuing.
[Thread 0x7fffe457c700 (LWP 38659) exited]
[New Thread 0x7fffc86ff700 (LWP 38890)]
[Detaching after fork from child process 38896]
[New Thread 0x7fffcb7d5700 (LWP 38897)]
[New Thread 0x7fffad2fe700 (LWP 38913)]
[Thread 0x7fffad2fe700 (LWP 38913) exited]
[New Thread 0x7fffad2fe700 (LWP 38915)]
[Thread 0x7fffad2fe700 (LWP 38915) exited]
[New Thread 0x7fffad2fe700 (LWP 38916)]
[Thread 0x7fffc99fd700 (LWP 38848) exited]
[Thread 0x7fffad2fe700 (LWP 38916) exited]
[New Thread 0x7fffad2fe700 (LWP 38923)]
[New Thread 0x7fffc99fd700 (LWP 38925)]
[New Thread 0x7fffca2ff700 (LWP 38926)]
[Thread 0x7fffc8cbe700 (LWP 38870) exited]
[Thread 0x7fffd183c700 (LWP 38732) exited]
[Thread 0x7fffca2ff700 (LWP 38926) exited]
[Thread 0x7fffcaf7a700 (LWP 38720) exited]
[Thread 0x7fffc99fd700 (LWP 38925) exited]
[New Thread 0x7fffc99fd700 (LWP 38934)]
[New Thread 0x7fffccb15700 (LWP 38941)]
[New Thread 0x7fffa85ff700 (LWP 38942)]
[New Thread 0x7fffa5cff700 (LWP 38943)]
[New Thread 0x7fff9deff700 (LWP 38944)]
[New Thread 0x7fffcaf7a700 (LWP 38946)]
[New Thread 0x7fffca2ff700 (LWP 38956)]
[Detaching after fork from child process 38964]
[New Thread 0x7fffc8cbe700 (LWP 38966)]
[New Thread 0x7fffd183c700 (LWP 38965)]
[New Thread 0x7fffe457c700 (LWP 39027)]

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
[Switching to Thread 0x7fffe617d700 (LWP 33251)]
__libc_send (flags=<optimized out>, len=24, buf=0x7fffabda5000, fd=175) at ../sysdeps/unix/sysv/linux/send.c:28
28 ../sysdeps/unix/sysv/linux/send.c: No such file or directory.
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffabdb7000, fd=172)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.
[New Thread 0x7fffca23c700 (LWP 39208)]
[New Thread 0x7fff9f572700 (LWP 39209)]

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffabc40000, fd=171)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.
[New Thread 0x7fff9f371700 (LWP 39210)]
[New Thread 0x7fff9f170700 (LWP 39211)]

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffd2ab0000, fd=170)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=31, buf=0x7fff9168d000, fd=132)
at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffa753f000, fd=127) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fff913fe000, fd=61) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fff9dffd000, fd=109) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=31, buf=0x7fffa6fea000, fd=120) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffa74ee000, fd=126) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=28, buf=0x7fffb1dd0000, fd=122) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c

The backtrace is quite useless
(gdb) bt
#0 0x00007f627c60f96f in __GI___poll (fds=0x557c01805170, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x0000557bfb85792f in ?? ()
#2 0x0000557bfb857c8d in ?? ()
#3 0x0000557bfb6ff59f in ?? ()
#4 0x0000557bfb731595 in ?? ()
#5 0x0000557bfb731ad9 in ?? ()
#6 0x0000557bfb7329c1 in ?? ()
#7 0x0000557bfb72b176 in ?? ()
#8 0x0000557bfb72b742 in ?? ()
#9 0x0000557bfb732c57 in ?? ()
#10 0x0000557bfb732d07 in ?? ()
#11 0x0000557bfb59440e in ?? ()
#12 0x0000557bfb59f5a6 in ?? ()
#13 0x0000557bfb5a064c in ?? ()
#14 0x0000557bfb8579d6 in ?? ()
#15 0x0000557bfb857cda in ?? ()
#16 0x0000557bfb5d9895 in ?? ()
#17 0x0000557bfb5dd585 in ?? ()
#18 0x0000557bfb3f790c in ?? ()
#19 0x00007f627c543d0a in __libc_start_main (main=0x557bfb3f78e0, argc=1, argv=0x7ffec92634f8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffec92634e8) at ../csu/libc-start.c:308
#20 0x0000557bfb3fcf4a in ?? ()
(gdb)

Thread 1 "gdb" received signal SIGINT, Interrupt.
0x00007f627c60f96f in __GI___poll (fds=0x557c0187a370, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb) bt
#0 0x00007f627c60f96f in __GI___poll (fds=0x557c0187a370, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x0000557bfb85792f in ?? ()
#2 0x0000557bfb857c8d in ?? ()
#3 0x0000557bfb5d9895 in ?? ()
#4 0x0000557bfb5dd585 in ?? ()
#5 0x0000557bfb3f790c in ?? ()
#6 0x00007f627c543d0a in __libc_start_main (main=0x557bfb3f78e0, argc=1, argv=0x7ffec92634f8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffec92634e8) at ../csu/libc-start.c:308
#7 0x0000557bfb3fcf4a in ?? ()
(gdb)

Comment 86

[Rik]

(In reply to Alexandre LISSY :gerard-majax from comment #83)

SIGILL ?! Would be nice if you had the symbols.

Since my build Id is 20230504124523, I expect to found them here
https://symbols.mozilla.org/20230504124523/
so I could do
set solib-search-path https://symbols.mozilla.org/20230504124523/
but at that address there is a json "not found"
Where do I found them?

By the way I've found a great source of errors in this website that is probably great to start a freeze! :-)
https://www.casapinetaelba.com/

Thread 0x7fffc9cff700 (LWP 3855) exited]
[New Thread 0x7fffc7dff700 (LWP 3936)]
[Thread 0x7fffc7bbe700 (LWP 3719) exited]
[New Thread 0x7fffcf67a700 (LWP 3943)]
[New Thread 0x7fffe60fb700 (LWP 3944)]
[New Thread 0x7fffc9cff700 (LWP 3953)]
[New Thread 0x7fffd19ff700 (LWP 3954)]
[New Thread 0x7fffc80be700 (LWP 3955)]

Thread 157 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001528293f1c22 in ?? ()
(gdb) bt
#0 0x00001528293f1c22 in ?? ()
#1 0x00007fffb505b480 in ?? ()
#2 0x00007fffb48fc400 in ?? ()
#3 0x0000000000000008 in ?? ()
#4 0x00007fffb505b5b0 in ?? ()
#5 0x0000000000000000 in ?? ()
(gdb)

Comment 87

[Rik]

It's actually working... it's only that the mozilla symbols are not accessible directly but via GDB I can see
"info functions" returns tons of functions, so I actually have symbols now.

So, what do you suggest to do when I get errors like this SIGKILL or the freeze to better investigate the problem?
Which gdb command?

Comment 88

[Rik]

Actually I notice now the symbols are there even without
set solib-search-path https://symbols.mozilla.org/20230504124523/

Comment 89

[Rik]

However I can't see s...ugar

[New Thread 0x7fffb4bff700 (LWP 6112)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
--Type <RET> for more, q to quit, c to continue without paging--c
[Switching to Thread 0x7fffb4bff700 (LWP 6112)]
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffcb946700 (LWP 5990) exited]
[Thread 0x7fffcbb94700 (LWP 5977) exited]
[Thread 0x7fffc9abb700 (LWP 5943) exited]
[New Thread 0x7fffcb946700 (LWP 6128)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) bt
#0 0x00001ca6a0e05572 in ?? ()
#1 0x00007fffb3ab8b60 in ?? ()
#2 0x00007fffb4bfc400 in ?? ()
#3 0x0000000000000008 in ?? ()
#4 0x00007fffb3ab8c90 in ?? ()
#5 0x0000000000000000 in ?? ()
(gdb)

Guys, try yourself on this website
https://www.casapinetaelba.com/
open dev tools with F12 and load/reload such page. I get sigkill basically... always and from there if I insist I get a freeze.

Comment 90

[Rik]

It's not easy to get a freeze from there but eventually happens. The SIGKILL for me it's very repeatable there.

[New Thread 0x7fffe60fb700 (LWP 6200)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
[Detaching after fork from child process 6210]
[New Thread 0x7fffcbebe700 (LWP 6213)]
[New Thread 0x7fffc0ea3700 (LWP 6233)]
[Thread 0x7fffc0ea3700 (LWP 6233) exited]
[Thread 0x7fffcaefc700 (LWP 6046) exited]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
[Detaching after fork from child process 6246]
[New Thread 0x7fffc777f700 (LWP 6248)]
[Thread 0x7fffc7c7f700 (LWP 6183) exited]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05d02 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffc83be700 (LWP 6190) exited]
[Thread 0x7fffd1dfe700 (LWP 6184) exited]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05d02 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffe60fb700 (LWP 6200) exited]
[Thread 0x7fffd17ff700 (LWP 6181) exited]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05d02 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffcec88700 (LWP 6080) exited]
[New Thread 0x7fffd17ff700 (LWP 6273)]
[New Thread 0x7fffe60fb700 (LWP 6281)]
[Thread 0x7fffcb946700 (LWP 6132) exited]
[Detaching after fork from child process 6282]
[New Thread 0x7fffc83be700 (LWP 6283)]
[New Thread 0x7fffd1dfe700 (LWP 6304)]
[New Thread 0x7fffcaefc700 (LWP 6305)]
[Thread 0x7fffcbebe700 (LWP 6213) exited]
[Detaching after fork from child process 6317]
[New Thread 0x7fffc80ff700 (LWP 6320)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
[New Thread 0x7fffc7c7f700 (LWP 6338)]
[New Thread 0x7fffcb946700 (LWP 6339)]
[New Thread 0x7fffcbebe700 (LWP 6340)]
c
[Detaching after fork from child process 6362]
[New Thread 0x7fffcec88700 (LWP 6363)]
[New Thread 0x7fffc9abb700 (LWP 6364)]
[Thread 0x7fffd0eff700 (LWP 5761) exited]
[Detaching after fork from child process 6367]
[New Thread 0x7fffd0eff700 (LWP 6368)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
c

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.

c
[Thread 0x7fffd16f3700 (LWP 6196) exited]
[Thread 0x7fffd1dfe700 (LWP 6304) exited]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb)
Continuing.

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
[New Thread 0x7fffd1dfe700 (LWP 6405)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) bt
#0 0x00001ca6a0e05572 in ?? ()
#1 0x8b48f57500000002 in ?? ()
#2 0x00001ca6a0e93365 in ?? ()
#3 0x0000000000000018 in ?? ()
#4 0x00007fffe2bd7a20 in ?? ()
#5 0x00007fffb4bfc1b0 in ?? ()
#6 0x00001ca6a0e16940 in ?? ()
#7 0x00007fffb34feac0 in ?? ()
#8 0x00001ca6a0f326a0 in ?? ()
#9 0x00001ca6a0f32b76 in ?? ()
#10 0x0000000000002842 in ?? ()
#11 0x00002ba520e23e08 in ?? ()
#12 0x0000000000000001 in ?? ()
#13 0xfffe17f7dae84598 in ?? ()
#14 0xfff880000000cd97 in ?? ()
#15 0x4040000000000000 in ?? ()
#16 0x00007fffb4bfc2a8 in ?? ()
#17 0x00007fffe4881058 in ?? ()
#18 0x00001ca6a0f321b8 in ?? ()
#19 0x000000000000a821 in ?? ()
#20 0xfff880000000cd97 in ?? ()
#21 0xfffe17f7dae84598 in ?? ()
#22 0xfffe2ba520e23e08 in ?? ()
#23 0xfff9800000000000 in ?? ()
#24 0xfff9800000000000 in ?? ()
#25 0xfffa80000000000a in ?? ()
#26 0xfffa80000000000a in ?? ()
#27 0xfffa80000000000a in ?? ()
#28 0xfff880000000cd97 in ?? ()
#29 0xfffb36309c144bc8 in ?? ()
#30 0xfffe36309c151190 in ?? ()
#31 0x0000000000000000 in ?? ()
(gdb) Quit
(gdb) c
Continuing.

Comment 91

[:gerard-majax]

(In reply to Rik from comment #89)

However I can't see s...ugar

[New Thread 0x7fffb4bff700 (LWP 6112)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
--Type <RET> for more, q to quit, c to continue without paging--c
[Switching to Thread 0x7fffb4bff700 (LWP 6112)]
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffcb946700 (LWP 5990) exited]
[Thread 0x7fffcbb94700 (LWP 5977) exited]
[Thread 0x7fffc9abb700 (LWP 5943) exited]
[New Thread 0x7fffcb946700 (LWP 6128)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) bt
#0 0x00001ca6a0e05572 in ?? ()
#1 0x00007fffb3ab8b60 in ?? ()
#2 0x00007fffb4bfc400 in ?? ()
#3 0x0000000000000008 in ?? ()
#4 0x00007fffb3ab8c90 in ?? ()
#5 0x0000000000000000 in ?? ()
(gdb)

Guys, try yourself on this website
https://www.casapinetaelba.com/
open dev tools with F12 and load/reload such page. I get sigkill basically... always and from there if I insist I get a freeze.

I dont. You get SIGKILL or SIGILL ? If it's the later, have you disabled SIGILL as suggested in comment 84 ?

Comment 92

[:gerard-majax]

Also sorry if you already shared that, but there is so much on this thread that I can't find it anymore: where is this firefox setup coming from? /opt/firefox is not debian package. Is it the mozilla tar installed?

Comment 93

[Rik]

(In reply to Alexandre LISSY :gerard-majax from comment #91)

(In reply to Rik from comment #89)

However I can't see s...ugar

[New Thread 0x7fffb4bff700 (LWP 6112)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
--Type <RET> for more, q to quit, c to continue without paging--c
[Switching to Thread 0x7fffb4bff700 (LWP 6112)]
0x00001ca6a0e05572 in ?? ()
(gdb) c
Continuing.
[Thread 0x7fffcb946700 (LWP 5990) exited]
[Thread 0x7fffcbb94700 (LWP 5977) exited]
[Thread 0x7fffc9abb700 (LWP 5943) exited]
[New Thread 0x7fffcb946700 (LWP 6128)]

Thread 166 "DOM Worker" received signal SIGILL, Illegal instruction.
0x00001ca6a0e05572 in ?? ()
(gdb) bt
#0 0x00001ca6a0e05572 in ?? ()
#1 0x00007fffb3ab8b60 in ?? ()
#2 0x00007fffb4bfc400 in ?? ()
#3 0x0000000000000008 in ?? ()
#4 0x00007fffb3ab8c90 in ?? ()
#5 0x0000000000000000 in ?? ()
(gdb)

Guys, try yourself on this website
https://www.casapinetaelba.com/
open dev tools with F12 and load/reload such page. I get sigkill basically... always and from there if I insist I get a freeze.

I dont. You get SIGKILL or SIGILL ? If it's the later, have you disabled SIGILL as suggested in comment 84 ?

That's not a problem, I did it willingly to see what happenes.

(In reply to Alexandre LISSY :gerard-majax from comment #92)

Also sorry if you already shared that, but there is so much on this thread that I can't find it anymore: where is this firefox setup coming from? /opt/firefox is not debian package. Is it the mozilla tar installed?

I abandoned the Debian version 1 or 2 months ago because it looks like the problem was only from the Debian build (now I know it's not true), and because someone told me the Debian version is compiled withan old version of rust no longer supported. That's why I then installed the Mozilla build (/opt/firefox) via tar. I now also have problems with FF dev edition that I use since it's inception into /opt/ffdev/
Whatever version I use has this problem. Actually now it's quite worse then a month ago where a freeze was once per 20 days and never with FF Dev edition. It looks like the newer versions of FF have worsen the problem or maybe it's the latest Debian kernel (5.10.0-22-amd64) I've installed 2 days ago or so? Now I have a freeze every now and then.

=======================================
By the way, new freeze, new data...

1. Start the PC
2. Run FF esr via gdb + logs + symbols.mozilla.org
3. Open www.casapinetaelba.it
   and this is the killer sequence...

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
[Switching to Thread 0x7fffe617d700 (LWP 13054)]
__libc_send (flags=<optimized out>, len=31, buf=0x7fffb363e000, fd=180) at ../sysdeps/unix/sysv/linux/send.c:28
28 ../sysdeps/unix/sysv/linux/send.c: No such file or directory.
(gdb) info locals
resultvar = 18446744073709551584
sc_cancel_oldtype = 0
__value = <optimized out>
__arg6 = <optimized out>
__arg2 = <optimized out>
_a3 = <optimized out>
resultvar = <optimized out>
resultvar = <optimized out>
__arg3 = <optimized out>
_a4 = <optimized out>
sc_ret = <optimized out>
__arg4 = <optimized out>
_a5 = <optimized out>
_a1 = <optimized out>
__arg5 = <optimized out>
__arg1 = <optimized out>
_a6 = <optimized out>
_a2 = <optimized out>
(gdb) bt
#0 __libc_send (flags=<optimized out>, len=31, buf=0x7fffb363e000, fd=180) at ../sysdeps/unix/sysv/linux/send.c:28
#1 __libc_send (fd=180, buf=0x7fffb363e000, len=31, flags=0) at ../sysdeps/unix/sysv/linux/send.c:23
#2 0x00007ffff7a72aed in ?? () from /opt/firefox/libnspr4.so
#3 0x00007ffff064ddbd in ?? () from /opt/firefox/libxul.so
#4 0x00007ffff6d90c48 in ?? () from /opt/firefox/libssl3.so
#5 0x00007ffff6d7600b in ?? () from /opt/firefox/libssl3.so
#6 0x00007ffff6d73fb1 in ?? () from /opt/firefox/libssl3.so
#7 0x00007ffff6d9607c in ?? () from /opt/firefox/libssl3.so
#8 0x00007ffff11302a8 in ?? () from /opt/firefox/libxul.so
#9 0x00007ffff0677e8b in ?? () from /opt/firefox/libxul.so
#10 0x00007ffff067ad92 in ?? () from /opt/firefox/libxul.so
#11 0x00007ffff067dd62 in ?? () from /opt/firefox/libxul.so
#12 0x00007ffff06806ab in ?? () from /opt/firefox/libxul.so
#13 0x00007ffff068131d in ?? () from /opt/firefox/libxul.so
#14 0x00007fffefcddd9e in ?? () from /opt/firefox/libxul.so
#15 0x00007fffefd1e9ad in ?? () from /opt/firefox/libxul.so
#16 0x00007ffff07d7ecd in ?? () from /opt/firefox/libxul.so
#17 0x00007ffff05ea175 in ?? () from /opt/firefox/libxul.so
#18 0x00007ffff7a670ec in ?? () from /opt/firefox/libnspr4.so
#19 0x00005555555dc1f3 in set_alt_signal_stack_and_start(PthreadCreateParams*) ()
#20 0x00007ffff7f95ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#21 0x00007ffff7b84a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) c
Continuing.
[New Thread 0x7fffc87bd700 (LWP 13638)]

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=31, buf=0x7fffd0364000, fd=151) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) info locals
resultvar = 18446744073709551584
sc_cancel_oldtype = 0
__value = <optimized out>
__arg6 = <optimized out>
__arg2 = <optimized out>
_a3 = <optimized out>
resultvar = <optimized out>
resultvar = <optimized out>
__arg3 = <optimized out>
_a4 = <optimized out>
sc_ret = <optimized out>
__arg4 = <optimized out>
_a5 = <optimized out>
_a1 = <optimized out>
__arg5 = <optimized out>
__arg1 = <optimized out>
_a6 = <optimized out>
_a2 = <optimized out>
(gdb) bt
#0 __libc_send (flags=<optimized out>, len=31, buf=0x7fffd0364000, fd=151) at ../sysdeps/unix/sysv/linux/send.c:28
#1 __libc_send (fd=151, buf=0x7fffd0364000, len=31, flags=0) at ../sysdeps/unix/sysv/linux/send.c:23
#2 0x00007ffff7a72aed in ?? () from /opt/firefox/libnspr4.so
#3 0x00007ffff064ddbd in ?? () from /opt/firefox/libxul.so
#4 0x00007ffff6d90c48 in ?? () from /opt/firefox/libssl3.so
#5 0x00007ffff6d7600b in ?? () from /opt/firefox/libssl3.so
#6 0x00007ffff6d73fb1 in ?? () from /opt/firefox/libssl3.so
#7 0x00007ffff6d9607c in ?? () from /opt/firefox/libssl3.so
#8 0x00007ffff11302a8 in ?? () from /opt/firefox/libxul.so
#9 0x00007ffff0677e8b in ?? () from /opt/firefox/libxul.so
#10 0x00007ffff067ad92 in ?? () from /opt/firefox/libxul.so
#11 0x00007ffff067dd62 in ?? () from /opt/firefox/libxul.so
#12 0x00007ffff06806ab in ?? () from /opt/firefox/libxul.so
#13 0x00007ffff068131d in ?? () from /opt/firefox/libxul.so
#14 0x00007fffefcddd9e in ?? () from /opt/firefox/libxul.so
#15 0x00007fffefd1e9ad in ?? () from /opt/firefox/libxul.so
#16 0x00007ffff07d7ecd in ?? () from /opt/firefox/libxul.so
#17 0x00007ffff05ea175 in ?? () from /opt/firefox/libxul.so
#18 0x00007ffff7a670ec in ?? () from /opt/firefox/libnspr4.so
#19 0x00005555555dc1f3 in set_alt_signal_stack_and_start(PthreadCreateParams*) ()
#20 0x00007ffff7f95ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#21 0x00007ffff7b84a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) c
Continuing.

Thread 6 "Socket Thread" received signal SIGPIPE, Broken pipe.
__libc_send (flags=<optimized out>, len=24, buf=0x7fffcae8b000, fd=110) at ../sysdeps/unix/sysv/linux/send.c:28
28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) info locals
resultvar = 18446744073709551584
sc_cancel_oldtype = 0
__value = <optimized out>
__arg6 = <optimized out>
__arg2 = <optimized out>
_a3 = <optimized out>
resultvar = <optimized out>
resultvar = <optimized out>
__arg3 = <optimized out>
_a4 = <optimized out>
sc_ret = <optimized out>
__arg4 = <optimized out>
_a5 = <optimized out>
_a1 = <optimized out>
__arg5 = <optimized out>
__arg1 = <optimized out>
_a6 = <optimized out>
_a2 = <optimized out>
(gdb) bt
#0 __libc_send (flags=<optimized out>, len=24, buf=0x7fffcae8b000, fd=110) at ../sysdeps/unix/sysv/linux/send.c:28
#1 __libc_send (fd=110, buf=0x7fffcae8b000, len=24, flags=0) at ../sysdeps/unix/sysv/linux/send.c:23
#2 0x00007ffff7a72aed in ?? () from /opt/firefox/libnspr4.so
#3 0x00007ffff064ddbd in ?? () from /opt/firefox/libxul.so
#4 0x00007ffff6d90c48 in ?? () from /opt/firefox/libssl3.so
#5 0x00007ffff6d7600b in ?? () from /opt/firefox/libssl3.so
#6 0x00007ffff6d73fb1 in ?? () from /opt/firefox/libssl3.so
#7 0x00007ffff6d9607c in ?? () from /opt/firefox/libssl3.so
#8 0x00007ffff11302a8 in ?? () from /opt/firefox/libxul.so
#9 0x00007ffff0677e8b in ?? () from /opt/firefox/libxul.so
#10 0x00007ffff067ad92 in ?? () from /opt/firefox/libxul.so
#11 0x00007ffff067dd62 in ?? () from /opt/firefox/libxul.so
#12 0x00007ffff06806ab in ?? () from /opt/firefox/libxul.so
#13 0x00007ffff068131d in ?? () from /opt/firefox/libxul.so
#14 0x00007fffefcddd9e in ?? () from /opt/firefox/libxul.so
#15 0x00007fffefd1e9ad in ?? () from /opt/firefox/libxul.so
#16 0x00007ffff07d7ecd in ?? () from /opt/firefox/libxul.so
#17 0x00007ffff05ea175 in ?? () from /opt/firefox/libxul.so
#18 0x00007ffff7a670ec in ?? () from /opt/firefox/libnspr4.so
#19 0x00005555555dc1f3 in set_alt_signal_stack_and_start(PthreadCreateParams*) ()
#20 0x00007ffff7f95ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#21 0x00007ffff7b84a2f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) si
0x00007ffff7fa049a 28 in ../sysdeps/unix/sysv/linux/send.c
(gdb) si

==========================================
AT THE POINT THE DE IS FROZEN COMPLETELY
No working mouse/keyboard

=============================
I THEN PROCEED VIA SSH

(gdb) bt
#0 0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00005593ddfd392f in ?? ()
#2 0x00005593ddfd3c8d in ?? ()
#3 0x00005593ddd55895 in ?? ()
#4 0x00005593ddd59585 in ?? ()
#5 0x00005593ddb7390c in ?? ()
#6 0x00007f3658e68d0a in __libc_start_main (main=0x5593ddb738e0, argc=2, argv=0x7ffce2575708, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7ffce25756f8) at ../csu/libc-start.c:308
#7 0x00005593ddb78f4a in ?? ()

(gdb) info locals
resultvar = 18446744073709551100
sc_cancel_oldtype = 0
sc_ret = <optimized out>

(gdb) si
^C0x00007f3658f3496f 29 in ../sysdeps/unix/sysv/linux/poll.c

(gdb) c
Continuing.

Thread 1 "gdb" received signal SIGINT, Interrupt.
0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c

(gdb) info locals
resultvar = 18446744073709551100
sc_cancel_oldtype = 0
sc_ret = <optimized out>

(gdb) bt
#0 0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00005593ddfd392f in ?? ()
#2 0x00005593ddfd3c8d in ?? ()
#3 0x00005593ddd55895 in ?? ()
#4 0x00005593ddd59585 in ?? ()
#5 0x00005593ddb7390c in ?? ()
#6 0x00007f3658e68d0a in __libc_start_main (main=0x5593ddb738e0, argc=2, argv=0x7ffce2575708, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7ffce25756f8) at ../csu/libc-start.c:308
#7 0x00005593ddb78f4a in ?? ()

(gdb) c
Continuing.
^C
Thread 1 "gdb" received signal SIGINT, Interrupt.
0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb) info locals
resultvar = 18446744073709551100
sc_cancel_oldtype = 0
sc_ret = <optimized out>
(gdb) bt
#0 0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00005593ddfd392f in ?? ()
#2 0x00005593ddfd3c8d in ?? ()
#3 0x00005593ddd55895 in ?? ()
#4 0x00005593ddd59585 in ?? ()
#5 0x00005593ddb7390c in ?? ()
#6 0x00007f3658e68d0a in __libc_start_main (main=0x5593ddb738e0, argc=2, argv=0x7ffce2575708, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7ffce25756f8) at ../csu/libc-start.c:308
#7 0x00005593ddb78f4a in ?? ()

(gdb) si
^C0x00007f3658f3496f 29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb) si

Thread 1 "gdb" received signal SIGINT, Interrupt.
0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb) si
^C0x00007f3658f3496f 29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb) c
Continuing.

Thread 1 "gdb" received signal SIGINT, Interrupt.
0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb) info locals
resultvar = 18446744073709551100
sc_cancel_oldtype = 0
sc_ret = <optimized out>
(gdb) c
Continuing.
^C
Thread 1 "gdb" received signal SIGINT, Interrupt.
0x00007f3658f3496f in __GI___poll (fds=0x5593e4136b30, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
29 in ../sysdeps/unix/sysv/linux/poll.c
(gdb)

NOTHING TO DO, it's in this loop so in the end I had to
kill 13002
and the PC was back to normal

So Firefox is able to freeze the DE in some way but it's not a crash because it's reversible: killing FF solves the problem. And I want to remember that during the freeze the CPU is not overloaded at all (5%), nor iotop shows any problem. How can FF kidnap the DE this way?
I don't know what to do. I can't go on this way, I have to work.

Comment 94

[Rik]

Here we go again. This time, instead of the more common freeze of X I've had a crash of X and I found myself with the login screen. No core dump was generated (despite is set to do that). I was minimizing Firefox.

Comment 95

[Rik]

So, the goal to understand if the problem was the FF + Intel UHD 630 has been achieved and the answer is: NO. The problem is not the VGA, because I have problem even with one of the most Linux compatible VGA, the NVidia GT-710 Kepler.
At this point I can remove such VGA I've bought only for this test, and get back to the Intel UHD 630 that is faster and 30W less.

I've also downclocked the RAM to be sure. I have the corsair Vengence LPX 3000 MHz, downclocked to the lower profile 2133... but didn't save me from another crash.

So the problem is...? At this point I think we will never know and I'll keep having FF as the sole software that crash my PC.
I strongly hope in Debian 12 otherwise I seriously have to think about changing browser.

Comment 96

[Rik]

Fresh crash of the day! Step right up, ladies and gentlemen! Fresh crashes straight from the sea! Get 'em while they're still flapping!
https://crash-stats.mozilla.org/report/index/5748da26-9294-4cf6-b46e-4b8080230529
I was resizing the FF window.

Comment 97

[Rik]

Interesting... : along with the above crash, I only now realize after 1 hour, that maximizing Thunderbird (91.13.0) its window content it's all garbled, just like FF before crashing. This is interesting for 2 reasons:

1. After 1 hour TB it's still alive despite the garbled window content
2. Only TB and FF were affected by this problem, no any other window (and despite FF was on the right monitor and TB on the left one).
   It cannot be by change. They share something and that's part of the problem.

Comment 98

[Rik]

I meant "it cannot by chance". Unfortunately comments cannot be edited.

Comment 99

[Rik]

OMG! I can do it!!! I meant "it cannot be by chance!" :-)

Comment 100

[:gerard-majax]

(In reply to Rik from comment #96)

Fresh crash of the day! Step right up, ladies and gentlemen! Fresh crashes straight from the sea! Get 'em while they're still flapping!
https://crash-stats.mozilla.org/report/index/5748da26-9294-4cf6-b46e-4b8080230529
I was resizing the FF window.

This points to rather old version of mesa, it would not be unsurprising there was a bug they fixed since. But from the stack it's clear the crash happens on libdrm_nouveau2 side.

Comment 101

[Rik]

Any workaround before Debian 12? One could be to go back to FF 91: it goes flawlessly. However I also use FF Dev edition and that' always the latest version. Could I try something to circumvent the problem for a couple of months (in the hope that Debian 12 will solve the problem)?

Comment 102

[Darkspirit]

KDE/Nouveau/Bullseye could freeze even without Firefox involved. Maybe MATE is affected by the same.
For Nouveau, I would only recommend Gnome X11.
Or try out the proprietary Nvidia driver 470.182.03 for your GT 710 from 2023.3.30 (sudo apt-get install nvidia-driver) and enable "Force composition pipeline" in Nvidia Settings (at least on non-Gnome desktops).
(470 is an older major version, doesn't support GBM/Wayland, but that one is new enough for EGL in Firefox (minimum version is 470.82))

If you use Intel, then make sure $ xrandr --listproviders shows that the modesetting driver is used (and use a compositor) and not the legacy Intel DDX one. (fix: sudo apt-get remove xserver-xorg-video-intel)

If you want greatest stability, use at least Debian Bookworm. Not a too outdated system with unfixed X11, driver and kernel bugs.
Debian 12 Bookworm becomes Stable on 2023-06-10.

Might not be alternatives for you:
Software WebRender problem (crash/glitch): In bug 1812982 comment 66 I have listed the greatest edge case X11 problems I could remember.
Force-enabling (hardware) WebRender on old buggy llvmpipe software OpenGL might crash on old Ubuntu: bug 1835691

Other than "Please upgrade to bookworm to get bug fixes", I could only suggest:

• gfx.x11-egl.force-enabled:true webgl.threadsafe-gl.force-disabled:true webgl.use-canvas-render-thread:false
  to avoid X11&Mesa threading problems. I don't understand why they leave those two "WebGL in 2 threads in the same process" prefs enabled on non-Nouveau when Mesa has indicated OpenGL is not threadsafe (I've also seen a comment about Radeon). bug 1818929 comment 6.
• gfx.webrender.allow-partial-present-buffer-age:false gfx.webrender.max-partial-present-rects:0 nglayout.enable_drag_images:false
  to avoid some edge case bugs (e.g. bug 1796960, bug 1723323 (it should not occur by default because partial present is disabled on proprietary Nvidia, but maybe Mesa is affected as well in some edge cases?), bug 1725009 (IIRC it might have been wrongly unmapped widget or partial present)). But disabling the first two prefs reduces performance (and battery life).

Comment 103

[Rik]

From your picture it looks like Debian is a bunch of idiots. :-) I mean, if the most stable Linux distro on planet has all these problems and even if I install nothing else than official repo apps and the bare minimum, it sounds like they don't know what they are doing. Something doesn't add up though:

1. Why I have other PCs with the same config and no problems? If it were a mesa problem etc., all of them, more or less should suffer the same problem. Not counting how many thousands of people have the same config of mine.
2. Why the only software with this problem is Firefox?
3. Why changing VGA solves nothing? Not even the super noveau compatible GT 710 Kepler?
4. Why only FF from v.92+ (maybe because of webrender)?
5. Why other browsers like Chromium or Falkon are free from this problem?

I mean, on the scientific point of view, if you have a setting with 100 things inside of it, and all of them works OK except 1, it's more probable that such 1 thing has problem than the other 99 or the setting. Morever we are talking of functions that are basically used 100% of the time by any app, because we are talking of FF crashing or freezing the system simply touching its window, without scrolling/touching the content of the viewport. So the same thing should happen at random on any other app and instead it never happens.

But suppose it's really the MESA version too old despite it was all OK since a few months ago when I had FF v.91. If the culprit is MESA, then at this point we should abolish the concept of STABLE distro because on this route, even installing Debian Bookworm it could happen again after a few month... even now because bookwork testing is already in the freeze state.

Why you guys don't talk directly to Debian?

Comment 104

[Rik]

This problem it's evolving... few moments ago I had a problem on FF ESR and at the same time on FF Dev edition (on different monitors, of the same PC of course). Both the viewports get garbled, while their window menus (the icon on the right where you see minimise, unmaximise, etc.) were working correctly as anything else in the DE.
I closed FF Dev edition and reopening was all OK, while the ESR was still garbled.
On the ESR: I minimised it, moved it, changed workspace, resized... the window was working properly but the viewport was unrecoverable. After 1 minute of these tests the usual warning message "not responding: Wait/Restart?". I restarted the ESR and here I am with it.

So

1. The viewport of 2 different FF were affected at the same time
2. Anything else was still working propertly
3. Restarting 1 browser doesn't affect the other

Comment 105

[Rik]

The twin crash of what I reported above
https://crash-stats.mozilla.org/report/index/09ffe9d5-420b-4e0e-8c0a-151270230530
(The ESR about:crashes list the same of the dev edition).

I probably forgot to mention that I cloned this machine on:

1. HM110M-A with an integrated Intel VGA
2. Gigabyte P55-UD3 with NVidia GT610
3. Thinkpad T560 with an integrated Intel VGA
   and never had this problem there, so it's not a matter of Debian per se

I also want to remember I've just changed from Intel UHD 630 to Nvidia GT-710 Kepler I've bought just to make this experiment and I chose such model because is the most Linux compatible on planet. So it's not even a matter of VGA.

=== TO RECAP ===

1. It's not Debian (because cloning this PC on other HW works without problems)
2. it's not the VGA (because I've swapped it with the most Nouveau compatible model on this side of the universe)
3. it's not the FF from Debian Repo (because it also happens with Mozilla build of any FF 92+; no problem with 91-)
4. it's not hardware malfunction (because it only happens with FF, 100% guaranteed. It never happened, e.g. rendering videos with Shotcut or using VLC/Chromium/Netbeans/Eclipse/7z/Libreoffice/VirtualBox (with any heavy load, e.g. Win11 or a Debian VM where I compile all the version of PHP).

Comment 106

[Rik]

Bad News with Debian Bookworm

After the upgrade of a Bullseye computer to Bookworm, a perfectly working PC has started to have the same exact problem I have on my Bullseye working station.
So not only Debian Bookworm doesn't solve the problem, it brings the problem even where it wasn't. So we can now exclude the MESA version or the Rust compiler.

Demi-good news

On my working station it seems disabling the hardware acceleration solved the problem because it's now 20 days without a freeze.

RECAP

On my main PC

Bullseye + FF =<91 = 100% OK whaterver the option
Bullseye + FF >91 + intel + acceleration = freezes
Bullseye + FF >91 + intel + no acceleration = freezes
Bullseye + FF >91 + nvidia + acceleration = freezes
Bullseye + FF >91 + nvidia + no acceleration = OK

On my 2nd PC

Bullseye + FF whatever version + nvidia + acceleration = 100% OK whaterver the option
Bookworm + FF >91 + nvidia + acceleration = freezes
Now I've set no acceleration to see whether it solves the problem (it will take a while to be sure because I don't use such PC much).

So it doesn't matter whether FF is from Debian or Mozilla build and it's not a problem of old libraries in Debian because Bookworm not only doesn't solve anything, on the contrary, it brings the problem even where Firefox was working 100% fine with bullseye. Great!

Comment 107

[Rik]

PS: I would remove from the bug "See https://gitlab.freedesktop.org/drm/intel/-/issues/4858" because the CPU doesn't hang at all, I can "defrost" the system via ssh killing Firefox.
I have no idea how is it possibile for an application to freeze X despite the CPU has no load and as soon as I kill FF via SSH everything is back working properly.
Any idea how that is possibile and on different hardware?

Comment 108

[Rik]

Apart the same problem introduced by Bookwork on another PC that was perfectly working with Bullseye, back to my main PC (still with Bullseye), it's now 30 days without a crash thanks to the last piece of the puzzle: disabling hardware acceleration.
NB: It was the first thing I tried months ago, but at that time it didn't make any difference. The difference it's only now after I:

• changed from FF from Debian repo to Mozilla build
• changed from the integrated Intel UHD to discret NVidia
• and then from hw acceleration to disabling it

Now, keeping the hardware acceleration off, I want to try all the way back to the initial situation, starting from going back to the Debian Build of Firefox ESR 102.12 (same version of the Mozilla Build I'm using at the moment).
This way I think I'll find a point where even with the hw acceleration off I will get the X paralysis.

Now, back to Debian build.

Comment 109

[Rik]

Now that I'm back with the Debian build of FF, the first problem I notice is that it's ridiculously slow without hw acceleration!
Both Mozilla and Debian build are tested with the EXACT same config (copied profile + to be sure I've checked all the different values in about:config), and both without hardware acceleration:

• The build from Mozilla runs at the same speed with or without hw acceleration
• The build from the Debian repo it's instead so slow that JS pop ups with fad-in effects are shown in a jerky manner and Youtube has video/voice out of sync.

Comment 110

[Rik]

I don't understand why the Mozilla build has basically no difference in speed checking/unchecking "Use hardware acceleration when available", while the Firefox from Debian repo has a massive difference (disabling hw acc. makes it unuseable).
I've checked all the parameters in about:config and in about:support. Nothing different apart that the FF from moz has a field for updating and the one from Debian has not.
I've also tried with a profile from scratch and same problem: cannot be used without hw acceleration.
So I'll keep going with the Mozilla build.

Comment 111

[Rik]

Another freeze 5 minutes ago. I was writing in a textbox when the cursor stopped moving and the system froze.
So disabling FF hardware acceleration it's not a workaround and doesn't actually solve the problem.

Fortunately, I now know it's not a real CPU freeze, it's only X, so I can cope with the problem via ssh from another PC killing firefox-bin.

In the next days I'm going to change video card again: after the Intel UHD and the NVidia Kepler, I'm now going to install an RX-570. At this point I doubt the problem is bound to the video card, however... let's see.

Comment 112

[Rik]

This time I've got something different (I'm not changed the video card yet). I found myself logged off. In the log:
kernel: nouveau 0000:01:00.0: gr: TRAP ch 2 [007fb1c000 Xorg[938]]
kernel: nouveau 0000:01:00.0: gr: GPC0/TPC0/TEX: 80000009
repeated 8 times, then
kernel: nouveau 0000:01:00.0: fifo: fault 00 [READ] at 0000000001bf3000 engine 00 [GR] client 01 [GPC0/T1_0] reason 02 [PTE] on channel 2 [007fb1c000 Xorg[938]]

Tomorrow I'm installing a Radeon RX-570.

Comment 113

[Rik]

From 31/7/2023 I'm with an RX-570. Let's see if the problem persists.

Comment 114

[Rik]

With the RX-570 I've never had any issue anymore. However I've got the same problem on another PC.
When I'm doing important things, I prefer to close Firefox to prevent crashes. That's not great...
This problem is not solved at all.