Firefox crashes with segmentation fault on some websites

[Eugen]

I have opened the folowing website http://asmolov-vladimir.narod.ru/ and firefox crashes after I have clicked in menu left. I think, the vlc plugin is not ok. Please report it to the programmer of this plugin.

eugen@laptop:~$ firefox
argn=src, argv=sound.mp3
argn=autostart, argv=TRUE
argn=hidden, argv=true
argn=volume, argv=100
argn=loop, argv=TRUE
[00000001] main private debug: checking builtin modules
[00000001] main private debug: checking plugin modules
[00000001] main private debug: loading plugins cache file /home/eugen/.vlc/cache/plugins-04041e.dat
[00000001] main private debug: recursively browsing `modules'
[00000001] main private debug: recursively browsing `/usr/lib/vlc'
[00000001] main private debug: recursively browsing `plugins'
[00000001] main private debug: module bank initialized, found 216 modules
[00000001] main private debug: opening config file /home/eugen/.vlc/vlcrc
[00000001] main private debug: CPU has capabilities 486 586 MMX MMXEXT SSE SSE2 FPU
[00000001] main private debug: looking for memcpy module: 1 candidate
[00000001] main private debug: using memcpy module "memcpy"
[00000281] main playlist debug: waiting for thread completion
[00000281] main playlist debug: thread 2959600528 (playlist) created at priority 0 (playlist/playlist.c:184)
[00000282] main private debug: waiting for thread completion
[00000282] main private debug: thread 2940664720 (preparser) created at priority 0 (playlist/playlist.c:210)
[00000283] main interface debug: looking for interface module: 1 candidate
[00000283] main interface debug: using interface module "hotkeys"
[00000283] main interface debug: thread 2932272016 (interface) created at priority 0 (interface/interface.c:231)
[00000285] main interface debug: looking for interface module: 1 candidate
[00000285] main interface debug: using interface module "screensaver"
[00000285] main interface debug: thread 2912123792 (interface) created at priority 0 (interface/interface.c:231)
argn=src, argv=sound.mp3
argn=autostart, argv=TRUE
argn=hidden, argv=true
argn=volume, argv=100
argn=loop, argv=TRUE
[00000287] main private debug: translation test: code is "de"
[00000287] main private debug: module bank initialized, found 216 modules
[00000287] main private debug: opening config file /home/eugen/.vlc/vlcrc
[00000287] main private debug: CPU has capabilities 486 586 MMX MMXEXT SSE SSE2 FPU
[00000287] main private debug: looking for memcpy module: 1 candidate
[00000287] main private debug: using memcpy module "memcpy"
[00000289] main playlist debug: waiting for thread completion
[00000289] main playlist debug: thread 2903731088 (playlist) created at priority 0 (playlist/playlist.c:184)
[00000290] main private debug: waiting for thread completion
[00000290] main private debug: thread 2895338384 (preparser) created at priority 0 (playlist/playlist.c:210)
[00000291] main interface debug: looking for interface module: 1 candidate
[00000291] main interface debug: using interface module "hotkeys"
[00000291] main interface debug: thread 2886945680 (interface) created at priority 0 (interface/interface.c:231)
[00000292] main interface debug: looking for interface module: 1 candidate
[00000292] main interface debug: using interface module "screensaver"
[00000292] main interface debug: thread 2878552976 (interface) created at priority 0 (interface/interface.c:231)
[00000001] main private debug: removing all interfaces
[00000285] main interface debug: thread 2912123792 joined (interface/interface.c:258)
[00000285] main interface debug: removing module "screensaver"
[00000283] main interface debug: thread 2932272016 joined (interface/interface.c:258)
[00000283] main interface debug: removing module "hotkeys"
[00000001] main private debug: removing playlist handler
[00000282] main private debug: thread 2940664720 joined (playlist/playlist.c:247)
[00000281] main playlist debug: thread 2959600528 joined (playlist/playlist.c:248)
[00000001] main private debug: removing all video outputs
[00000001] main private debug: removing all audio outputs
[00000001] main private debug: removing module "memcpy"
Segmentation fault

[Eugen (eugen-sarychev)]

PS: without this plugin it works, but I don't hear music on this website. So, it crashes if I am using the vlc and there is background music.

[Magnus S (magnuss)]

Hi,
you reported this bug a while ago, is this issue still a problem for you?

//magnus

[Eugen (eugen-sarychev)]

Hi,
I'm realy happy to see, there is life on launchpad :)
I have experimented today, there is still the same bug. My system is the updatet-last-week Ubuntu 8.10, Firefox and VLC Lan plugin. On the website, if I cklick on the link in menu on the left side, firefox beginns to load it and crashes. By reload, if I try to load old session, it crashes still, I need to start a new one.
Eugen
_________________________________________________________________________
Sensationsangebot nur bis 30.11: WEB.DE FreeDSL - Telefonanschluss + DSL
für nur 16,37 Euro/mtl.!* http://dsl.web.de/?ac=OM.AD.AD008K13805B7069a

[Magnus S (magnuss)]

Okay...
I am unable to reproduce this. Not because it works, but because i'm unable to get the vlc plugin to respond at all...

Create a new user account on your computer, and make sure the vlc plugin is installed in that account. Visit the site and see if you can reproduce the bug. If you can, read on:

Run "firefox" in a maximized terminal and reproduce. Copy and paste the output into a text file and attach to your next comment.
Follow the instructions at https://wiki.ubuntu.com/Backtrace - Generation, so we can get a backtrace. Remember to install debug symbols first. Attach the backtrace.

Thanks in advance!
//magnus

[Akdo (menoft)]

I follow this link but :

gdb firefox 2>&1 | tee gdb-firefox.txt
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...
"/usr/bin/firefox-3.0": not in executable format: File format not recognized

So I cannot make this.

....
[00000523] main stream debug: pre-buffering done 9212 bytes in 0s - 52 kbytes/s
[00000520] main input debug: creating demux: access='http' demux='' path='tv.freebox.fr/stream_france2'
[00000524] main demux debug: looking for demux module: 52 candidates
[00000524] main demux debug: using demux module "ts"
[00000524] ts demux debug: DEMUX_SET_GROUP 0 (nil)
[00000520] main input debug: `http://tv.freebox.fr/stream_france2' successfully opened
[00000524] ts demux debug: pid[69] unknown
[00000524] ts demux debug: pid[68] unknown
libdvbpsi error (PSI decoder): TS discontinuity (received 10, expected 0) for PID 0
[00000524] ts demux debug: PATCallBack called
[00000524] ts demux debug: new PAT ts_id=2 version=17 current_next=1
[00000524] ts demux debug: * number=1 pid=66
libdvbpsi error (PSI decoder): TS discontinuity (received 10, expected 0) for PID 66
[00000524] ts demux debug: PMTCallBack called
[00000524] ts demux debug: new PMT program number=1 version=19 pid_pcr=68
[00000524] ts demux debug: * descriptor : IOD (0x1d)
[00000524] ts demux debug: * es pid=68 type=27 fcc=h264
[00000520] main input debug: selecting program id=1
[00000525] main decoder debug: looking for decoder module: 30 candidates
[00000525] avcodec decoder debug: libavcodec already initialized
[00000525] avcodec decoder debug: ffmpeg codec (H264 - MPEG-4 AVC (part 10)) started
[00000525] main decoder debug: using decoder module "avcodec"
[00000525] main decoder debug: thread 2830064528 (decoder) created at priority 0 (input/decoder.c:217)
[00000524] ts demux warning: found SL_descriptor es_id=69
[00000524] ts demux debug: * es pid=69 type=17 fcc=mp4a
[00000527] main decoder debug: looking for decoder module: 30 candidates
[00000527] main decoder debug: using decoder module "faad"
[00000527] main decoder debug: thread started
[00000527] main decoder debug: thread 2856881040 (decoder) created at priority 5 (input/decoder.c:217)
[00000524] ts demux warning: first packet for pid=69 cc=0x7
Segmentation fault

[Magnus S (magnuss)]

Yeah, firefox is a little special when it comes to backtraces.

It needs to be started like this:
/usr/bin/firefox -g

and then continue with the guide.

We could also need a valgrind log and a strace, so please follow the instructions at https://wiki.ubuntu.com/Valgrind and https://wiki.ubuntu.com/Strace.

//magnus

[Karoly Gossler (connor)]

Here is the strace log.

http://www.dunatv.hu/musor/videotar cause the crash. (hardy)

[Vish (vish)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue for you. Can you try with the latest Ubuntu release? Thanks in advance.

[Vish (vish)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future.
To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New".