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Re: [Mythbuntu-bugs] [Bug 1101395] Re: mythlogserver crashed with SIGSEGV in QObject::disconnect()

To: linux-traipu@xxxxxxxxxxxxxxxxxxx
From: Thomas Mashos <1101395@xxxxxxxxxxxxxxxxxx>
Date: Mon, 25 Feb 2013 18:51:48 -0000
Reply-to: Bug 1101395 <1101395@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Are you sure that mythtv is the culprit? What does 'top' say?

Thanks,

Thomas Mashos


On Mon, Feb 25, 2013 at 10:39 AM, Mark Preston <emp2008@xxxxxxx> wrote:

> After running sudo service mythtv-backend stop, the OS cannot get back
> control. My mouse is weak to dead at times. Typing into a form took 10
> minutes because of this.
>
> What part of mythtv can I stop besides backend? I tried to stop
> mythlogserver, mythlcdserver and another myth, but the terminal said
> "unrecognized service".
>
> --
> You received this bug notification because you are a member of Mythbuntu
> Bug Team, which is subscribed to MythTV.
> https://bugs.launchpad.net/bugs/1101395
>
> Title:
>   mythlogserver crashed with SIGSEGV in QObject::disconnect()
>
> Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
>   Triaged
> Status in MythTV:
>   Unknown
> Status in “mythtv” package in Ubuntu:
>   Triaged
>
> Bug description:
>   crashed on remote frontend
>
>   ProblemType: Crash
>   DistroRelease: Ubuntu 12.04
>   Package: mythtv-common
> 2:0.26.0+fixes.20130118.8f8274a-0ubuntu0mythbuntu2 [origin:
> LP-PPA-mythbuntu-0.26]
>   ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
>   Uname: Linux 3.2.0-35-generic x86_64
>   NonfreeKernelModules: nvidia
>   .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: 2.0.1-0ubuntu17.1
>   Architecture: amd64
>   CrashDB: mythbuntu
>   Date: Fri Jan 18 15:13:07 2013
>   Disassembly: => 0x0:  Cannot access memory at address 0x0
>   DistributionChannelDescriptor:
>    # This is a distribution channel descriptor
>    # For more information see
> http://wiki.ubuntu.com/DistributionChannelDescriptor
>    canonical-oem-somerville-precise-amd64-20120703-2
>   ExecutablePath: /usr/bin/mythlogserver
>   InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary
> 20120703-15:08
>   Installed_mythtv_dbg: 2:0.26.0+fixes.20130118.8f8274a-0ubuntu0mythbuntu2
>   MarkForUpload: True
>   MythTVDirectoryPermissions:
>    total 4
>    drwxr-xr-x 2 root root 4096 Nov 24 18:26 videos
>   ProcCmdline: /usr/bin/mythlogserver --daemon --verbose general
> --loglevel info --syslog local7
>   ProcEnviron:
>    TERM=xterm
>    PATH=(custom, no user)
>    LANG=en_US.UTF-8
>    SHELL=/bin/bash
>   SegvAnalysis:
>    Segfault happened at: 0x0:   Cannot access memory at address 0x0
>    PC (0x00000000) not located in a known VMA region (needed executable
> region)!
>    Stack memory exhausted (SP below stack segment)
>   SegvReason: executing NULL VMA
>   Signal: 11
>   SourcePackage: mythtv
>   StacktraceTop:
>    ?? ()
>    QObject::disconnect(QObject const*, char const*, QObject const*, char
> const*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
>    disconnect (member=0x0, receiver=0x7ff2d800b560, this=0x7ff2e000b4c0)
> at /usr/include/qt4/QtCore/qobject.h:252
>    unregisterSocket (socket_=0x7ff2e000b4c0, this=0x7ff2d800b560) at
> ../include/nzmqt/nzmqt.hpp:703
>    nzmqt::PollingZMQContext::qt_static_metacall (_o=0x7ff2d800b560,
> _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at
> moc_nzmqt.cpp:401
>   Title: mythlogserver crashed with SIGSEGV in QObject::disconnect()
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mythbuntu/+bug/1101395/+subscriptions
>
> _______________________________________________
> Mailing list: https://launchpad.net/~mythbuntu-bugs
> Post to     : mythbuntu-bugs@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~mythbuntu-bugs
> More help   : https://help.launchpad.net/ListHelp
>

-- 
You received this bug notification because you are a member of UBUNTU -
AL - BR, which is subscribed to Mythbuntu.
https://bugs.launchpad.net/bugs/1101395

Title:
  mythlogserver crashed with SIGSEGV in QObject::disconnect()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Triaged
Status in MythTV:
  Unknown
Status in “mythtv” package in Ubuntu:
  Triaged

Bug description:
  crashed on remote frontend

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-common 2:0.26.0+fixes.20130118.8f8274a-0ubuntu0mythbuntu2 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
  Uname: Linux 3.2.0-35-generic x86_64
  NonfreeKernelModules: nvidia
  .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: 2.0.1-0ubuntu17.1
  Architecture: amd64
  CrashDB: mythbuntu
  Date: Fri Jan 18 15:13:07 2013
  Disassembly: => 0x0:	Cannot access memory at address 0x0
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-precise-amd64-20120703-2
  ExecutablePath: /usr/bin/mythlogserver
  InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08
  Installed_mythtv_dbg: 2:0.26.0+fixes.20130118.8f8274a-0ubuntu0mythbuntu2
  MarkForUpload: True
  MythTVDirectoryPermissions:
   total 4
   drwxr-xr-x 2 root root 4096 Nov 24 18:26 videos
  ProcCmdline: /usr/bin/mythlogserver --daemon --verbose general --loglevel info --syslog local7
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x0:	Cannot access memory at address 0x0
   PC (0x00000000) not located in a known VMA region (needed executable region)!
   Stack memory exhausted (SP below stack segment)
  SegvReason: executing NULL VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   ?? ()
   QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
   disconnect (member=0x0, receiver=0x7ff2d800b560, this=0x7ff2e000b4c0) at /usr/include/qt4/QtCore/qobject.h:252
   unregisterSocket (socket_=0x7ff2e000b4c0, this=0x7ff2d800b560) at ../include/nzmqt/nzmqt.hpp:703
   nzmqt::PollingZMQContext::qt_static_metacall (_o=0x7ff2d800b560, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at moc_nzmqt.cpp:401
  Title: mythlogserver crashed with SIGSEGV in QObject::disconnect()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

To manage notifications about this bug go to:
https://bugs.launchpad.net/mythbuntu/+bug/1101395/+subscriptions
References

[Bug 1101395] [NEW] mythlogserver crashed with SIGSEGV in QObject::disconnect()
From: Mario Limonciello, 2013-01-18
[Bug 1101395] Re: mythlogserver crashed with SIGSEGV in QObject::disconnect()
From: Mark Preston, 2013-02-25