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/1017577
Title:
mythbackend crashed with SIGSEGV in QMutex::lock()
Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
Expired
Bug description:
Ran a channel scan in mythbackend setup and crash occured when exiting
setup.
ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: mythtv-backend 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: nvidia
.var.log.mythtv.mythavtest.log:
.var.log.mythtv.mythccextractor.log:
.var.log.mythtv.mythjobqueue.log:
.var.log.mythtv.mythlcdserver.log:
.var.log.mythtv.mythmediaserver.log:
.var.log.mythtv.mythshutdown.log:
.var.log.mythtv.mythtranscode.log:
.var.log.mythtv.mythutil.log:
.var.log.mythtv.mythwelcome.log:
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CrashDB: mythbuntu
Date: Mon Jun 25 10:29:46 2012
ExecutablePath: /usr/bin/mythbackend
InstallationMedia: Mythbuntu 12.04 "Precise Pangolin" - Release amd64
(20120425)
Installed_mythtv_dbg: 0.0
ProcCmdline: /usr/bin/mythbackend --syslog local7 --user mythtv
ProcEnviron:
TERM=linux
PATH=(custom, no user)
LANG=en_US.UTF-8
SegvAnalysis:
Segfault happened at: 0x7f69bbd7d93e <_ZN6QMutex4lockEv+14>: mov
(%rdi),%rbx
PC (0x7f69bbd7d93e) ok
source "(%rdi)" (0x65006e00650067) not located in a known VMA region (needed
readable region)!
destination "%rbx" ok
Stack memory exhausted (SP below stack segment)
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: mythtv
StacktraceTop:
QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
JobQueue::DoMetadataLookupThread(int) () from /usr/lib/libmythtv-0.25.so.0
JobQueue::MetadataLookupThread(void*) () from /usr/lib/libmythtv-0.25.so.0
?? () from /usr/lib/nvidia-current/libGL.so.1
start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
Title: mythbackend crashed with SIGSEGV in QMutex::lock()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: audio cdrom dialout video
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