mythbackend crashed with SIGSEGV in __pthread_mutex_lock()

Bug #946257 reported by mathieg2 on 2012-03-04
This bug affects 1 person
Affects Status Importance Assigned to Milestone
mythtv (Ubuntu)

Bug Description

Not sure whats going on

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: mythtv-backend 2:0.25.0~master.20120223.532cee8-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.94-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Sun Mar 4 10:54:27 2012
ExecutablePath: /usr/bin/mythbackend
Installed_mythtv_dbg: 0.0
ProcCmdline: /usr/bin/mythbackend --syslog local7 --user mythtv
 PATH=(custom, no user)
 Segfault happened at: 0xb6723cb7 <pthread_mutex_lock+23>: mov 0xc(%esi),%edi
 PC (0xb6723cb7) ok
 source "0xc(%esi)" (0x0000000c) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: mythtv
 pthread_mutex_lock () from /lib/i386-linux-gnu/
 QWaitCondition::wakeAll() () from /usr/lib/i386-linux-gnu/
 PreviewGenerator::TeardownAll() () from /usr/lib/
 PreviewGenerator::deleteLater() () from /usr/lib/
 PreviewGeneratorQueue::~PreviewGeneratorQueue() () from /usr/lib/
Title: mythbackend crashed with SIGSEGV in pthread_mutex_lock()
UpgradeStatus: Upgraded to precise on 2012-02-26 (6 days ago)
UserGroups: audio cdrom dialout video

mathieg2 (graeme-salsaholics) wrote :

 __pthread_mutex_lock (mutex=0x0) at pthread_mutex_lock.c:50
 QWaitCondition::wakeAll (this=0xa9c3d1b0) at thread/qwaitcondition_unix.cpp:139
 PreviewGenerator::TeardownAll (this=0xa9c3d198) at previewgenerator.cpp:91
 PreviewGenerator::deleteLater (this=0xa9c3d198) at previewgenerator.cpp:97
 PreviewGeneratorQueue::~PreviewGeneratorQueue (this=0x82fe8d8, __in_chrg=<optimized out>) at previewgeneratorqueue.cpp:57

Changed in mythtv (Ubuntu):
importance: Undecided → Medium
summary: - mythbackend crashed with SIGSEGV in pthread_mutex_lock()
+ mythbackend crashed with SIGSEGV in __pthread_mutex_lock()
tags: removed: need-i386-retrace
MarcRandolph (mrand) wrote :

Howdy, and thank you for helping to improve Mythbuntu by opening this ticket. I've forwarded the important information to the MythTV developers - we'll see what they find!

visibility: private → public
Changed in mythtv (Ubuntu):
importance: Medium → High
status: New → Triaged
Changed in mythtv:
status: Unknown → New
todaioan (alan-ar06) on 2012-09-15
Changed in mythtv (Ubuntu):
status: Triaged → Fix Released
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.