gst-plugin-scanner crashed with SIGSEGV in __GI___pthread_mutex_lock()

[David Pires]

*******
 ISSUE
*******

HOW TO REPRODUCE

- <http://iso.qa.ubuntu.com/qatracker/milestones/308/builds/57248/testcases>

EXPECTED BEHAVIOUR

- The distribution to upgrade without futher problems.

REAL BEHAVIOUR

- The "gst-plugin-scanner" application crashes during the "installing the upgrades" phase of the process.

RELEVANT DETAILS

- The user's hardware was <http://phillw.net/hardware/Ed3c22qV>.

**********
 SOLUTION
**********

WORK-AROUND

- None known.

FIX

- Unknown.

REGRESSION POTENTIAL

- Since the application doesn't work at all and does a very specific action, the regression potential is very low.

****************
 TECHNICAL INFO
****************

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: libgstreamer1.0-0 1.2.2-1ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
Uname: Linux 3.11.0-15-generic i686
ApportVersion: 2.13.2-0ubuntu2
Architecture: i386
Date: Thu Jan 30 15:16:32 2014
ExecutablePath: /usr/lib/i386-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-plugin-scanner
InstallationDate: Installed on 2013-11-29 (61 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release i386 (20131016)
ProcCmdline: /usr/lib/i386-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-plugin-scanner -l
SegvAnalysis:
 Segfault happened at: 0xb74cb036 <__GI___pthread_mutex_lock+22>: mov 0xc(%esi),%eax
 PC (0xb74cb036) ok
 source "0xc(%esi)" (0x00001070) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gstreamer1.0
StacktraceTop:
 __GI___pthread_mutex_lock (mutex=0x1064) at ../nptl/pthread_mutex_lock.c:66
 crLockMutex () from /usr/lib/VBoxOGLcrutil.so
 crHashtableLock () from /usr/lib/VBoxOGLcrutil.so
 ?? () from /usr/lib/i386-linux-gnu/dri/vboxvideo_dri.so
 rtThreadMain () from /usr/lib/i386-linux-gnu/dri/vboxvideo_dri.so
Title: gst-plugin-scanner crashed with SIGSEGV in __GI___pthread_mutex_lock()
UpgradeStatus: Upgraded to trusty on 2014-01-30 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 __GI___pthread_mutex_lock (mutex=0x1064) at ../nptl/pthread_mutex_lock.c:66
 ?? ()
 ?? ()
 ?? ()
 ?? ()

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1274548

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alberto Salvia Novella (es20490446e)]

@ David Pires:

Bugs can only be made public after following the steps in <https://wiki.ubuntu.com/Bugs/Triage#Apport_crash_reports>, or you could be exposing private information.

[David Pires (slickymaster)]

@ Alberto Salvia Novella:

I am perfectly aware of <https://wiki.ubuntu.com/Bugs/Triage#Apport_crash_reports> but besides the fact that this bug report refer to a a VirtualBox setup that existed only for testing purposes, neither Stacktrace.txt, StacktraceSource.txt and ThreadStacktrace.txt contained any sensitive information.

[Alberto Salvia Novella (es20490446e)]

Since the "vboxvideo_dri.so" component is what really crashes, this isn't a bug in the "gstreamer1.0" package but in the "virtualbox" one.