1293134 - Firefox becomes unresponsive by opening SVG with blend modes and replicate

Status: RESOLVED DUPLICATE of bug 1293586

(Core :: Graphics, defect)

Description

[david.dailey]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/13.10586

Steps to reproduce:

Firefox crashes
https://ello.co/ddailey/post/hwqd8hmolnwx7-vp4zocfq
or
http://cs.sru.edu/~ddailey/svg/modifier3RBlendSnapMode.svg



Actual results:

firefox crashes. It starts to render the page and then gives up. Two different contexts as seen above. 


Expected results:

It works as expected in Chrome. Simpler examples without blendmode work fine in FF and Chrome.

http://cs.sru.edu/~ddailey/svg/modifier3.svg

Comment 1

[Tooru Fujisawa [:arai]]

Can you provide crash report ID?
https://support.mozilla.org/en-US/kb/mozillacrashreporter

Comment 2

[david.dailey]

When I type about:crash
into 
https://support.mozilla.org/en-US/kb/mozillacrashreporter
I get
"well that didn't work"
The crash is pretty reliable from two different machines (both running windows) 
One has version 47.0.1 -- the other is very close, version wise

Comment 3

[Tooru Fujisawa [:arai]]

Please enter "about:crashes" in location bar and hit enter

Comment 4

[david.dailey]

Not sure if this gives us anything
Submitted Crash Reports
Report ID 	Date Submitted
bp-614eb7f7-a511-4a31-86ca-2c0bf2160130
	1/30/2016	9:01 AM
bp-3648183b-415e-4101-b09e-f6add2150524
	5/24/2015	2:08 PM
Do I need to turn on somethi8ng?

Comment 5

[Tooru Fujisawa [:arai]]

Those are very old crash reports.

If the crash happens, do you see crash reporter?
If so, can you send the crash report?  so that the report will be shown in about:crashes.

Comment 6

[david.dailey]

I just looked at the Startup by Time of Day plot and perhaps it is not a "crash" per se but what Robert Longson (of Mozilla) calls a perpetual delay (or words to that effect)

What I see is that Firefox for Windows on loading those pages "becomes unresponsive" and that is the message that I get from Windows.

Comment 7

[Tooru Fujisawa [:arai]]

So, Firefox process doesn't crash until you terminate the process forcibly, right?

Comment 8

[Tooru Fujisawa [:arai]]

(In reply to Tooru Fujisawa [:arai] from comment #7)
> So, Firefox process doesn't crash until you terminate the process forcibly,
> right?
or, you can terminate Firefox process normally?

Comment 9

[david.dailey]

Right, yes, I need to do CTRL ALT DELETE to bring up task manager and then end the Firefox process which is shown as not responding. Or just now I tried it again and after Firefox itself showed (in the top title bar) "not responding" I was able to terminsate the process from within firefox. 

When I relaunch Firefox it says "this is embarrassing" and does not provide a tab for the previous session that cause the crash

Comment 10

[david.dailey]

Actually I take that back, It did provide a tab for https://ello.co/ddailey -- which is one of the locations where the page occurs. When I scroll down (to where the page exists in an HTML <img>) that's when the hang happens --
or if I go directly to https://ello.co/ddailey/post/hwqd8hmolnwx7-vp4zocfq
or the img src at
http://cs.sru.edu/~ddailey/svg/modifier3RBlendSnapMode.svg

Comment 11

[Tooru Fujisawa [:arai]]

okay, thanks :)

Can you confirm that the issue happens also with safe mode?
https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Comment 12

[david.dailey]

Dang! Putting into safe mode makes the page load properly.
Funny thing is: I tried it in two machines. One old with lots of apps. The other is brand new (as of a couple of weeks ago). I did not intentionally enable any Firefox plugins (unless things came through 
a) Adobe Cloud
b) putty
c) FileZilla
or a couple of other possibilities

Anyhow, it looks like it is not a Firefox bug, since after disabling plugins, as recommended, the animation works as expected in Firefox.... odd since I've never seen this before, in many years of using FF and reporting bugs (quite naively, I'll admit)

DD

Comment 13

[Tooru Fujisawa [:arai]]

As it's related to graphics, it might be caused by hardware acceleration,
since hardware acceleration is also disabled in safe mode.

Can you also check with new profile?
https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

If the issue happen with new profile, it won't be an issue with extensions.

Comment 14

[david.dailey]

I'll have to look into this later.
I did try (quasi systematically and quasi-randomly based on what I knew of plugins) disabling plugins several at a time. The problem still happened even with mostly all plugins disabled, giving circumstantial support fot the hardware acceleration idea. I can add that I was utterly amazed to see that this example worked as well as it did in Chrome, because, when working in FF, it is pretty slow.-- Oh and that reminds me that I think it was working in FF earlier in the day while I was testing the thing.... that's all I can say tonight though.

Comment 15

[david.dailey]

I restarted Firefox with a new profile (it then launched the app called "Nightly")
The page did not cause a crash, however there was a significant flaw in the rendering: the blend-modes
circle { mix-blend-mode: difference; }  
is not activated at all (as it is and should be in Chrome.
Not sure how to categorize the problem now. A simpler example using blend modes
https://ello.co/ddailey/post/aurnsiaimc_sakurrg33fa does work fine in Firefox.

And when I returned to the page using the new profile in Firefox (rather than Nightly), the page hangs again.

Comment 16

[Tooru Fujisawa [:arai]]

thanks again :)

sounds like it's mostly hardware acceleration issue.
does the issue disappear when you uncheck "Use hardware acceleration when available" in about:preferences "Advanced" pane?
if it doesn't happen without hardware acceleration, it would be the same issue as bug 1293586.

Comment 17

[david.dailey]

When I turned off hardware acceleration both problems (hanging and not rendering the blend modes) go away.

Comment 18

[Tooru Fujisawa [:arai]]

thanks!