Ubuntu
vlc package

vlc crashed with SIGSEGV in spu_DisplaySubpicture()

Bug #817924 reported by Rena Kunisaki on 2011-07-29

22

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	VLC media player	Fix Released	Undecided	Unassigned	VLC media player 2.0.0 "Twoflower"
	vlc (Ubuntu)	Fix Released	Medium	Unassigned

Bug Description

1) Opened video
2) Pressed space (pause) before it actually started playing
3) Switched to another window, typed a bit, switched back
4) Pressed f (fullscreen) and VLC crashed.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: vlc-nox 1.1.9-1ubuntu1.3
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
Architecture: amd64
Date: Fri Jul 29 02:35:07 2011
ExecutablePath: /usr/bin/vlc
InstallationMedia: Xubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426.1)
ProcCmdline: vlc video.mkv
ProcEnviron:
LANGUAGE=en_CA:en
LANG=en_CA.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x7ff7613515ed <spu_DisplaySubpicture+13>: mov 0x30(%rdi),%r12
PC (0x7ff7613515ed) ok
source "0x30(%rdi)" (0x00000030) not located in a known VMA region (needed readable region)!
destination "%r12" ok
Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: vlc
StacktraceTop:
spu_DisplaySubpicture () from /usr/lib/libvlccore.so.4
osd_Icon () from /usr/lib/libvlccore.so.4
vout_OSDIcon () from /usr/lib/libvlccore.so.4
?? () from /usr/lib/vlc/plugins/control/libhotkeys_plugin.so
?? () from /usr/lib/libvlccore.so.4
Title: vlc crashed with SIGSEGV in spu_DisplaySubpicture()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

See original description

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Revision history for this message

Rena Kunisaki (i-am-inuyasha) wrote on 2011-07-29:

#1

Dependencies.txt Edit (3.1 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.1 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (102.1 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (785 bytes, text/plain; charset="utf-8")
Registers.txt Edit (708 bytes, text/plain; charset="utf-8")
RelatedPackageVersions.txt Edit (655 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (4.0 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (20.2 KiB, text/plain; charset="utf-8")

Revision history for this message

Rena Kunisaki (i-am-inuyasha) wrote on 2011-07-29:

#2

Hm, why did it mark this as private by default? Is there some sensitive info in the log files?

Revision history for this message

Apport retracing service (apport) wrote on 2011-07-29:

#3

StacktraceTop:
spu_DisplaySubpicture (p_spu=0x0, p_subpic=0x29d7700) at video_output/vout_subpictures.c:335
osd_Icon (p_this=<value optimized out>, p_spu=0x0, i_render_width=<value optimized out>, i_render_height=<value optimized out>, i_margin_right=<value optimized out>, i_margin_top=<value optimized out>, i_channel=1, i_type=2) at osd/osd_widgets.c:341
vout_OSDIcon (p_caller=0x255e170, i_channel=1, i_type=2) at video_output/video_widgets.c:71
PutAction (p_intf=0x255e170, i_action=2) at hotkeys.c:302
TriggerCallback (p_this=0x2455120, p_var=0x2466820, psz_name=0x7ff7613a765b "key-action", oldval=...) at misc/variables.c:1366

Revision history for this message

Apport retracing service (apport) wrote on 2011-07-29: Stacktrace.txt

#4

Stacktrace.txt Edit (16.3 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2011-07-29: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (37.4 KiB, text/plain)

Changed in vlc (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-amd64-retrace

Revision history for this message

Benjamin Drung (bdrung) wrote on 2011-07-30:

#6

The crash dump may contain private data. The Apport retracing service takes the crash dump, removes the dump from the bug and retraces it (see comment #4 and #5).

visibility:	private → public
description:	updated

Revision history for this message

Rémi Denis-Courmont (rdenis) wrote on 2011-08-06:

#7

This race condition in the OSD should be fixed in VLC 1.2.

Changed in vlc (Ubuntu):
status:	New → Confirmed
Changed in vlc:
status:	New → Fix Released
milestone:	none → 1.2.0

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-02-13:

#8

This bug was fixed in the package vlc - 2.0.0~unix-0ubuntu1

---------------
vlc (2.0.0~unix-0ubuntu1) precise; urgency=low

  * New upstream release (Closes: #499381, #573064, #624027, LP: #455825,
    #573775, #695882, #705151, #708448, #738381, #743581, #747757, #817924,
    #931083).
  * Remove dropped mozilla-plugin-vlc, vlc-plugin-ggi, and vlc-plugin-svgalib.
    The Mozilla browser plug-in is now provided by a separate source tarball.
  * Add new plugins to and remove dropped plugins from vlc-nox.
  * Add new and remove dropped build dependencies:
    + libbluray-dev (for Blu-ray support)
    + libresid-builder-dev
    + libsamplerate0-dev
    + libsidplay2-dev
    + lbspeexdsp-dev
    + libxcb-composite0-dev
    - libgtk2.0-dev
    - xulrunner-dev
  * vlc-plugin-fluidsynth depends on fluid-soundfont-gm or
    musescore-soundfont-gm for having a sound font for playing MIDI files.
  * Drop all patches (they were either backported or accepted by upstream).
  * Update symbols for libvlc5.
  * Install plugins.dat instead of running vlc-cache-gen in postinst.
  * Update minimum version of build dependencies.
  * Change Build-Dependency from libupnp3-dev to unversioned libupnp-dev.
    (Closes: #656831)
-- Benjamin Drung <email address hidden> Mon, 13 Feb 2012 01:34:02 +0100

Changed in vlc (Ubuntu):
status:	Confirmed → Fix Released

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