1031004 - Firefox hangs in __lll_lock_wait / mozalloc_abort

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Vincent Lefevre]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0 (Beta/Release)
Build ID: 20140605174243

Steps to reproduce:

Open a new page.


Actual results:

Firefox suddenly hanged. It's window couldn't even be refreshed.


Expected results:

It shouldn't hang.

Here's the backtrace:

(gdb) bt
#0  __lll_lock_wait ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f1e027d74da in _L_lock_913 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f1e027d7300 in __GI___pthread_mutex_lock (mutex=0x7f1e000a64c0)
    at ../nptl/pthread_mutex_lock.c:79
#3  0x00007f1dfdc99ee7 in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#4  0x00007f1dfdc7f7f8 in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#5  <signal handler called>
#6  0x00007f1dfdc9b629 in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#7  0x00007f1dfdc9c41b in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#8  0x00007f1dfdc9c9a0 in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#9  0x00007f1dfdc9cf9c in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#10 0x00007f1dfdc9e3ff in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#11 0x00007f1dfdc9e48d in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#12 0x00007f1dfdc9a11f in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#13 0x00007f1dfdc9a144 in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#14 0x00007f1dfdc99c3d in ?? ()
   from /home/vinc17/software/firefox-30.0/firefox/libxul.so
#15 0x0000000000000000 in ?? ()

It seem to be the same problem as:
  https://crash-stats.mozilla.com/report/index/970833e7-1c4f-4a7a-8363-439fb2140621

Comment 1

[Vincent Lefevre]

Attachment: backtrace during a hang of Firefox 31.0

Comment 2

[Vincent Lefevre]

This seems to be related to mozalloc_abort since a full backtrace (as the one I've just attached) shows mozalloc_abort in Thread 1.

Comment 3

[Vincent Lefevre]

Occurred again with: Mozilla/5.0 (X11; Linux x86_64; rv:33.0) Gecko/20100101 Firefox/33.0

Comment 4

[Leho Kraav (:macmaN @lkraav)]

I'm also getting this Mozilla/5.0 (X11; Linux x86_64; rv:40.0) Gecko/20100101 Firefox/40.0

Suspecting OMTC. Firefox 30-ies have been super stable.

Program received signal SIGINT, Interrupt.
0x00007ffff7bcfc7c in __lll_lock_wait () from /lib64/libpthread.so.0
(gdb) bt
#0  0x00007ffff7bcfc7c in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00007ffff7bcb273 in pthread_mutex_lock () from /lib64/libpthread.so.0
#2  0x00007ffff67e8dd9 in PR_Lock () from /opt/firefox/libnspr4.so
#3  0x00007ffff1b4ee88 in ?? () from /opt/firefox/libxul.so
#4  0x00007ffff1b4ef40 in ?? () from /opt/firefox/libxul.so
#5  0x00007ffff1c0ff18 in ?? () from /opt/firefox/libxul.so
#6  0x00007ffff1c1dcbb in ?? () from /opt/firefox/libxul.so
#7  0x00007ffff1c1dd3e in ?? () from /opt/firefox/libxul.so
#8  0x00007ffff1b38f21 in ?? () from /opt/firefox/libxul.so
#9  0x00007ffff1b3f5c7 in ?? () from /opt/firefox/libxul.so
#10 0x00007ffff1b429db in ?? () from /opt/firefox/libxul.so
#11 0x00007ffff1f65ff8 in ?? () from /opt/firefox/libxul.so
#12 0x00007ffff2ece199 in ?? () from /opt/firefox/libxul.so
#13 0x00007ffff2eced46 in ?? () from /opt/firefox/libxul.so
#14 0x00007ffff2ed49d0 in ?? () from /opt/firefox/libxul.so
#15 0x00007ffff2ed5c2c in ?? () from /opt/firefox/libxul.so
#16 0x00007ffff1aebeb0 in NS_InvokeByIndex () from /opt/firefox/libxul.so
#17 0x00007ffff17d65f1 in ?? () from /opt/firefox/libxul.so
#18 0x00007ffff17d91d4 in ?? () from /opt/firefox/libxul.so
#19 0x00007ffff1995e92 in ?? () from /opt/firefox/libxul.so
#20 0x00007ffff1986651 in ?? () from /opt/firefox/libxul.so
#21 0x00007ffff1995858 in ?? () from /opt/firefox/libxul.so
#22 0x00007ffff1995db9 in ?? () from /opt/firefox/libxul.so
#23 0x00007ffff1986651 in ?? () from /opt/firefox/libxul.so
#24 0x00007ffff1995858 in ?? () from /opt/firefox/libxul.so
#25 0x00007ffff1995db9 in ?? () from /opt/firefox/libxul.so
#26 0x00007ffff1a3b35b in ?? () from /opt/firefox/libxul.so
#27 0x00007ffff1995e92 in ?? () from /opt/firefox/libxul.so
#28 0x00007ffff1986651 in ?? () from /opt/firefox/libxul.so
#29 0x00007ffff1995858 in ?? () from /opt/firefox/libxul.so
#30 0x00007ffff1995db9 in ?? () from /opt/firefox/libxul.so
#31 0x00007ffff1986651 in ?? () from /opt/firefox/libxul.so
#32 0x00007ffff1995858 in ?? () from /opt/firefox/libxul.so
#33 0x00007ffff1995db9 in ?? () from /opt/firefox/libxul.so
#34 0x00007ffff1a3b35b in ?? () from /opt/firefox/libxul.so
#35 0x00007ffff1995e92 in ?? () from /opt/firefox/libxul.so
#36 0x00007ffff19965e4 in ?? () from /opt/firefox/libxul.so
#37 0x00007ffff1a62ed9 in js::DirectProxyHandler::call(JSContext*, JS::Handle<JSObject*>, JS::CallArgs const&) const () from /opt/firefox/libxul.so
#38 0x00007ffff1a68d3f in js::CrossCompartmentWrapper::call(JSContext*, JS::Handle<JSObject*>, JS::CallArgs const&) const () from /opt/firefox/libxul.so
#39 0x00007ffff1a699bf in ?? () from /opt/firefox/libxul.so
#40 0x00007ffff1a69afa in js::proxy_Call(JSContext*, unsigned int, JS::Value*) () from /opt/firefox/libxul.so
#41 0x00007ffff1995e78 in ?? () from /opt/firefox/libxul.so
#42 0x00007ffff19965e4 in ?? () from /opt/firefox/libxul.so
#43 0x00007ffff19fc574 in ?? () from /opt/firefox/libxul.so
#44 0x00007ffff7fe6630 in ?? ()
#45 0xfffaffffd7acf080 in ?? ()
#46 0x00007fffffffaad8 in ?? ()
#47 0x00007ffff6a895a0 in ?? ()
#48 0xfff9000000000000 in ?? ()
#49 0x00007ffff57892a0 in ?? () from /opt/firefox/libxul.so
#50 0x00007fffd7a51a30 in ?? ()
#51 0x00007fffd7b1b164 in ?? ()
#52 0x0000000000000502 in ?? ()
#53 0x00007fffffffab98 in ?? ()
#54 0x00007fffa8b8c458 in ?? ()
#55 0x0000000000000002 in ?? ()
#56 0x00007fffffffab20 in ?? ()
#57 0xfffc7fffb2c38600 in ?? ()

Comment 5

[ci4L+mozilla-bts]

Attachment: Full backtrace and register dump with Firefox 47 and debugging symbols

Since upgrading my PC to a Skylake-based system with 32 GB of RAM I'm seeing this issue as well. And it happens annoyingly often. Sometimes all I need to do is go to a different virtual desktop and going back.

I'm using version 47.0 of the 64-bit Debian packages of Firefox, my Desktop is KDE 5. Everything is fully update, Debian testing is the base distribution.

I've attached a full backtrace as one can obtain while the browser hangs. The backtrace was made with debugging symbols installed and should show you where the issue is coming from.

I noticed, that if I have a YouTube video running in the background, the video keeps playing despite the hanging UI. At least the audio didn't start stuttering because the buffer ran out before I killed Firefox after a couple of minutes.

Let me know, if you need something else.

Comment 6

[ci4L+mozilla-bts]

I've found a way to trigger this with almost 100 % reliability:
1. Open a web site
2. Open the web developer tools
3. Go to the network tab
4. Give focus to another field for a couple of seconds
5. Firefox is stuck.

This is really problematic since it makes Firefox for development purposes almost unusable.

Comment 7

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

In the process of migrating remaining bugs to the new severity system, the severity for this bug cannot be automatically determined. Please retriage this bug using the new severity system.

Comment 8

[Gregory Pappas [:gregp]]

Reporter, are you still experiencing this issue?

Comment 9

[Vincent Lefevre]

It seems that I no longer get this issue. The bug can be closed.