[Solved] Core dumped with Firefox, VLC and maybe others

ThibaudDauce · 2016-02-24 21:16:34

Hi,

Since a few days, I have a lot of core dump with Firefox and VLC. The error is :
VLC media player 2.2.2 Weatherwax (revision 2.2.2-0-g6259d80)
[000000000253d148] core libvlc: Lancement de vlc avec l'interface par défaut. Utilisez « cvlc » pour démarrer VLC sans interface.
vlc: res_query.c :262 : __libc_res_nquery: l'assertion « (hp != NULL) && (hp2 != NULL) » a échoué.
[1] 3666 abort (core dumped) vlc

With Firefox :
firefox: res_query.c :262 : __libc_res_nquery: l'assertion « (hp != NULL) && (hp2 != NULL) » a échoué.
[1] 4283 abort (core dumped) firefox

It happens only on a few site (for example http://typematrix.com/bepo/) and with a few videos for VLC. When I go offline I don't have any problem with VLC, so it seems to confirm a problem with glibc with DNS requests I saw on Internet…

My version of glibc :
GNU C Library (GNU libc) stable release version 2.23, by Roland McGrath et al.
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 5.3.0.
Available extensions:
crypt add-on version 2.1 by Michael Glad and others
GNU Libidn by Simon Josefsson
Native POSIX Threads Library by Ulrich Drepper et al
BIND-8.2.3-T5B
libc ABIs: UNIQUE IFUNC
For bug reporting instructions, please see:
<https://bugs.archlinux.org/>.

I tried Firefox beta with no success. I tried to rollback my glibc with no success too… I'm out of ideas right now… :-(

Thanks a lot,
Thibaud

Last edited by ThibaudDauce (2016-02-27 18:59:56)

uid_65536 · 2016-02-25 10:52:49

glibc

Version: 2.23-1
Packager: Allan McRae <allan@archlinux.org>
Architecture: i686
Build Date: Sat - 20/02/2016 01:53:55

firefox

Version: 44.0.2-1
Packager: Evangelos Foutras <evangelos@foutrelis.com>
Architecture: i686
Build Date: Thu - 11/02/2016 23:41:06

Tried the weblink in firefox and got to the typematrix/bepo page with no problem.
Without an example site that was problematic in vlc, I can't try to replicate any issues with that - sorry.

So, I won't be able to offer much help beyond providing troubleshooting ideas I'm afraid, but it seems to be unique to you (or at least people with the same combination of binaries/config as you) rather than either ff or your glibc specifically.

The fact that it only happens on certain sites and is tied to rendering (video/fonts) would make me look at my video driver (and settings) and my ff plugins/addons (and settings) though.

In any event, given recent news, I wouldn't roll back my glibc, if I were you - not until I'd ascertained that that really was the root cause of the problem.

ThibaudDauce · 2016-02-25 15:48:40

Hi,

I already tried with Firefox and no addons. It only appears with VLC if I have an internet connection. I can try a video with Internet it crashs, without everything is fine… (same result with an ethernet connection or wifi).

The only difference with your system is the 64bits architecture… :-(

Thank you for your time,
Thibaud

uid_65536 · 2016-02-25 16:57:29

Don't have access to a 64bit system right now - and probably won't have for a couple of months either * - so any further troubleshooting on my part would be kinda pointless, as I won't be able to replicate the platform (and that's pretty significant when troubleshooting)..

Sorry

On the plus side, at least you know it might be worthwhile looking into 64bit related issues specifically.

* I'm not even in the country right now, never mind not at home

The Infinity · 2016-02-26 16:36:51

I can't reproduce both issues on my 64-bit system.

What kind of videos don't work? Audio, video, subtitle and container format and special format extensions/configurations would be interesting. You might provide a sample file.

Scimmia · 2016-02-26 16:46:07

https://bugs.archlinux.org/task/48336

susskind · 2016-02-26 18:54:34

Thanks Scimmia!

For me so, the programs Firefox and transmission-qt, transmission-gtk are all crashing with the same error due to glibc as reported above.
Firefox 44.0.2-1
transmission-qt 2.84-2
transmission-gtk 2.84-2

glibc:
glibc 2.23-1
lib32-glibc 2.23-1

For me the problem is confined to x86_64 system, since no crash on my i686 system?

Last edited by susskind (2016-02-26 18:57:39)

Allan · 2016-02-26 21:48:28

Have you tried a different DNS server?

susskind · 2016-02-27 07:51:59

I'm not on my 64bit workstation till Monday so I could not try it till then...

ThibaudDauce · 2016-02-27 10:38:36

Hi!

Found the problem!!!

I have IPv6 DNS and no IPv6 connection.

VLC with the same video:
I tried without IPv6 DNS and without IPv6 connection it works.
I tried with IPv6 DNS and with IPv6 connection it works.
I tried with IPv6 DNS and without IPv6 connection it crashs.

I also tried with some previously crashing websites and it seems to be fix.

It seems to be solved.

Thanks a lot Allan for your tip!
Thibaud

Last edited by ThibaudDauce (2016-02-27 10:40:28)

susskind · 2016-02-27 10:43:08

Good job! And thanks Allan indeed!
I can't confirm it's working yet for me though but it seems plausible.

How come this thing happens all of a sudden when it was working fine until now?

flateric · 2016-02-27 17:07:23

After latest upgrade I can't run vlc too. On my computer is segfaulting. :-( Have x86_64 system.
Looks like packge problem - downgrade to vlc-2.2.2-1 solve problem and vlc is working.

Systemd log:
Feb 27 17:58:50 Gr0mit systemd-coredump[3331]: Process 3325 (vlc) of user 1000 dumped core.

Stack trace of thread 3329:
#0 0x00007f1cc8e52ba9 _ZN7QThread13currentThreadEv (libQtCore.so.4)
#1 0x00007f1cc8f662c6 _ZN23QCoreApplicationPrivateC1ERiPPcj (libQtCore.so.4)
#2 0x00007f1cc94d1e23 _ZN19QApplicationPrivateC1ERiPPcN12QApplication4TypeEi (libQtGui.so.4)
#3 0x00007f1cc94d8930 _ZN12QApplicationC1ERiPPcbi (libQtGui.so.4)
#4 0x00007f1cca665dc3 n/a (libqt4_plugin.so)
#5 0x00007f1cd3cbc424 start_thread (libpthread.so.0)
#6 0x00007f1cd37f7cbd __clone (libc.so.6)

Stack trace of thread 3325:
#0 0x00007f1cd3cc4427 do_futex_wait.constprop.1 (libpthread.so.0)
#1 0x00007f1cd3cc44d4 __new_sem_wait_slow.constprop.0 (libpthread.so.0)
#2 0x00007f1cd34b77bc vlc_sem_wait (libvlccore.so.8)
#3 0x00007f1cca666ef4 n/a (libqt4_plugin.so)
#4 0x00007f1cd3499d75 n/a (libvlccore.so.8)
#5 0x00007f1cd349a31e vlc_module_load (libvlccore.so.8)
#6 0x00007f1cd3431355 intf_Create (libvlccore.so.8)
#7 0x00007f1cd34316df libvlc_InternalAddIntf (libvlccore.so.8)
#8 0x00007f1cd3eda7cc libvlc_add_intf (libvlc.so.5)
#9 0x00000000004013b6 n/a (vlc)
#10 0x00007f1cd3730710 __libc_start_main (libc.so.6)
#11 0x0000000000401599 n/a (vlc)

Stack trace of thread 3328:
#0 0x00007f1cd37eec3d poll (libc.so.6)
#1 0x00007f1cccadd886 n/a (libdbus_plugin.so)
#2 0x00007f1cd3cbc424 start_thread (libpthread.so.0)
#3 0x00007f1cd37f7cbd __clone (libc.so.6)

Stack trace of thread 3326:
#0 0x00007f1cd3cc203f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0)
#1 0x00007f1cd3432f00 n/a (libvlccore.so.8)
#2 0x00007f1cd3cbc424 start_thread (libpthread.so.0)
#3 0x00007f1cd37f7cbd __clone (libc.so.6)

Last edited by flateric (2016-02-27 17:18:47)

susskind · 2016-02-29 08:34:32

I'm on my 64bit Arch Linux workstation again.
And...
It's working again without any crashes! I've done nothing this day for that (no upgrade) but it's working again.
I'm confused: firefox, transmission were crashing but it may be due to my ISP after all?

Arch Linux

#1 2016-02-24 21:16:34

[Solved] Core dumped with Firefox, VLC and maybe others

#2 2016-02-25 10:52:49

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#3 2016-02-25 15:48:40

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#4 2016-02-25 16:57:29

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#5 2016-02-26 16:36:51

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#6 2016-02-26 16:46:07

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#7 2016-02-26 18:54:34

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#8 2016-02-26 21:48:28

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#9 2016-02-27 07:51:59

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#10 2016-02-27 10:38:36

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#11 2016-02-27 10:43:08

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#12 2016-02-27 17:07:23

Re: [Solved] Core dumped with Firefox, VLC and maybe others

#13 2016-02-29 08:34:32

Re: [Solved] Core dumped with Firefox, VLC and maybe others

Board footer