segmentation fault when streaming

Bug #28589 reported by Tommy on 2006-01-15
6
Affects Status Importance Assigned to Milestone
vlc (Ubuntu)
Medium
MOTU Media Team

Bug Description

When trying to set VLC to stream, it segfaulted.

This happens with all forms of streaming and on video and audio files, DVD, etc

No error message, no nothing.

Loic Pefferkorn (loic) wrote :

Can you please provide a backtrace ?

First, install gdb.
In a terminal (gnome-terminal or konsole), type the followings commands:

gdb /usr/bin/vlc
type r
Do steps involving the segfault
you should have messages on gdb
type bt

Then post the result here, with the ubuntu and videolan versions.

Tommy (tommy-thetsui) wrote :

G'day Loic

See below for bt
(gdb) bt
#0 0x080dae95 in ?? ()
#1 0x08759a98 in ?? ()
#2 0x0836f4a0 in _IO_stdin_used ()
#3 0xb496ce8c in ?? ()
#4 0x00000000 in ?? ()
#5 0xb7d7d900 in __malloc_initialize_hook () from /lib/tls/i686/cmov/libc.so.6
#6 0x00000000 in ?? ()
#7 0x80000000 in ?? ()
#8 0x00000002 in ?? ()
#9 0x00000050 in ?? ()
#10 0xb7ec1e97 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
Previous frame inner to this frame (corrupt stack?)

Version:

ubuntu: 5.10
Videolan: VLC media player 0.8.4-svn20040920 Janus

ta.

Tommy

Tommy (tommy-thetsui) wrote :

Hi .. does anyone has any update.

I am guessing it has something to do with trying to thread ??

Tommy (tommy-thetsui) wrote :

Hi .. Does anyone has any updae? Anything else I could try? - Tommy

ischwore (ischwore) wrote :

I am having the exact same problem.

After running gdb:
#0 0x080dae95 in ?? ()
#1 0x086b0c38 in ?? ()
#2 0x0836f4a0 in _IO_stdin_used ()
#3 0xb4a6ee6c in ?? ()
#4 0x00000000 in ?? ()
#5 0xb7db4900 in __malloc_initialize_hook () from /lib/tls/i686/cmov/libc.so.6
#6 0x00000000 in ?? ()
#7 0x00000004 in ?? ()
#8 0x00000003 in ?? ()
#9 0x00000010 in ?? ()
#10 0xb7ef8e97 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
Previous frame inner to this frame (corrupt stack?)

---------------------------------------------------------------------

I am also running:

ubuntu 5.10
Videolan: VLC media player 0.8.4-svn20040920 Janus

The command I ran to generate this seg fault:

vlc v4l:/dev/video0 --ipv6 --sout '#transcode{vcodec=mp4v,vb=1024,scale=1}:std{access=udp,mux=ts,url=[ff05::15]}' --ttl 12

worked fine for a previous version of ubuntu and vlc:

ubuntu 5.04
Videolan: VLC media Player 0.8.1-1ubuntu7

Even when I use the vlc GUI I am unable to stream anything and vlc immediately crashes. I have tried reinstalling serveral times.

Any suggestions would be much appreciated.

Changed in vlc:
assignee: nobody → motu
Daniel T Chen (crimsun) wrote :

Fixed in Dapper.

Changed in vlc:
assignee: motu → motumedia
Tommy (tommy-thetsui) wrote :

Do you think you could provide reference to this bug, so I could fix it myself rather than wait for Dapper?

- Tommy

Daniel T Chen (crimsun) wrote :

It's either https://trac.videolan.org/vlc/changeset/12822 or https://trac.videolan.org/vlc/changeset/12981; I don't remember offhand which one I merged back before I pulled the snapshot.

Changed in vlc:
status: Unconfirmed → Fix Released
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