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Message #12248
[Bug 1017259] Re: mythfrontend.real crashed with SIGSEGV in QMutex::lock()
We really do appreciate you opening this ticket to help improve
Mythbuntu, but it needs to be closed for a number of reasons. The
biggest one is that upstream has moved on to a new version and believes
this to be fixed. Could you please verify if this issue still exists in
the latest version?
Please do not let the closing of this ticket dissuade you from opening a
new ticket if this (or any other) problem occurs with the newer
versions.
** Changed in: mythbuntu
Status: New => Expired
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https://bugs.launchpad.net/bugs/1017259
Title:
mythfrontend.real crashed with SIGSEGV in QMutex::lock()
Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
Expired
Bug description:
This crash happened after the following actions:
I entered the file path's for the video files, covers and fanart.
Then I opened the video gallery and mythtv asked if it should scan for video files.
I awnsered it and after mythtv was finished with scanning I browsed through my movies.
mythtv was scanning for covers in the background.
When I wanted to leave the video part of mythtv it stopped reacting and a moment later the crash report popped up.
ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: mythtv-frontend 2:0.25.0+fixes.20120622.73bc45e-0ubuntu0mythbuntu4 [origin: LP-PPA-mythbuntu-0.25]
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
NonfreeKernelModules: wl
.var.log.mythtv.mythavtest.log:
.var.log.mythtv.mythbackend.log:
.var.log.mythtv.mythccextractor.log:
.var.log.mythtv.mythcommflag.log:
.var.log.mythtv.mythfilldatabase.log:
.var.log.mythtv.mythjobqueue.log:
.var.log.mythtv.mythlcdserver.log:
.var.log.mythtv.mythmediaserver.log:
.var.log.mythtv.mythmetadatalookup.log:
.var.log.mythtv.mythpreviewgen.log:
.var.log.mythtv.mythshutdown.log:
.var.log.mythtv.mythtranscode.log:
.var.log.mythtv.mythtv.setup.log:
.var.log.mythtv.mythutil.log:
.var.log.mythtv.mythwelcome.log:
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CrashDB: mythbuntu
Date: Sun Jun 24 23:35:31 2012
ExecutablePath: /usr/bin/mythfrontend.real
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
Installed_mythtv_dbg: 0.0
MythTVDirectoryPermissions:
total 16
drwxrwsr-x 2 mythtv mythtv 4096 mei 27 15:34 bare-client
drwxrwsr-x 2 mythtv mythtv 4096 jun 22 04:06 music
drwxrwxr-x 3 mythtv mythtv 4096 mei 27 17:51 pictures
drwxr-xr-x 2 root root 4096 jun 22 04:06 videos
ProcCmdline: /usr/bin/mythfrontend.real --syslog local7
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=nl_NL.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x7fc24ae5393e <_ZN6QMutex4lockEv+14>: mov (%rdi),%rbx
PC (0x7fc24ae5393e) ok
source "(%rdi)" (0x80000004a) not located in a known VMA region (needed readable region)!
destination "%rbx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: mythtv
StacktraceTop:
QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
QCoreApplication::postEvent(QObject*, QEvent*, int) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
MetadataFactory::customEvent(QEvent*) () from /usr/lib/libmythmetadata-0.25.so.0
QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
Title: mythfrontend.real crashed with SIGSEGV in QMutex::lock()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin mythtv plugdev sambashare sudo
modified.conffile..etc.mythtv.session.settings: [deleted]
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References