mythbuntu-bugs team mailing list archive

[Thomas Mashos <846383@xxxxxxxxxxxxxxxxxx>]

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 believes this to be fixed in the latest
version. 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 => Won't Fix

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https://bugs.launchpad.net/bugs/846383

Title:
  mythbackend crashed with SIGSEGV in ref()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Won't Fix

Bug description:
  This seems to have happened while shutting down the backend service to
  restart it.

  ProblemType: Crash
  DistroRelease: Ubuntu 11.04
  Package: mythtv-backend 2:0.25.0~master.20110910.bc9837f-0ubuntu0mythbuntu2
  ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
  Uname: Linux 2.6.38-10-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  CrashCounter: 1
  CrashDB: mythbuntu
  Date: Sat Sep 10 10:15:27 2011
  ExecutablePath: /usr/bin/mythbackend
  InstallationMedia: Mythbuntu 11.04 "Natty Narwhal" - Release amd64 (20110426)
  Installed_mythtv_dbg: 2:0.25.0~master.20110910.bc9837f-0ubuntu0mythbuntu2
  ProcCmdline: /usr/bin/mythbackend --syslog local7 --user mythtv
  ProcEnviron:
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
  SegvAnalysis:
   Segfault happened at: 0x7fadd037db08 <QMap<int, runningjobinfo>::detach_helper()+136>:	lock incl (%rax)
   PC (0x7fadd037db08) ok
   source "(%rax)" (0x00000024) not located in a known VMA region (needed readable region)!
   Stack memory exhausted (SP below stack segment)
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   ref (this=0x7fadb802a0a0) at /usr/include/qt4/QtCore/qatomic_x86_64.h:121
   QString (this=0x7fadb802a0a0) at /usr/include/qt4/QtCore/qstring.h:729
   runningjobinfo (this=0x7fadb802a0a0) at jobqueue.h:105
   node_create (this=0x7fadb802a0a0) at /usr/include/qt4/QtCore/qmap.h:455
   QMap<int, runningjobinfo>::detach_helper (this=0x7fadb802a0a0) at /usr/include/qt4/QtCore/qmap.h:760
  Title: mythbackend crashed with SIGSEGV in ref()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: audio cdrom dialout video
  XsessionErrors:
   (xfwm4:1811): xfwm4-WARNING **: The display does not support the XComposite extension.
   (xfwm4:1811): xfwm4-WARNING **: Compositing manager disabled.
   (nm-applet:1829): libappindicator-WARNING **: Unable to send signal for NewStatus: The connection is closed

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