linux-traipu team mailing list archive

[Thomas Mashos <1087908@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 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/1087908

Title:
  mythbackend crashed with SIGSEGV in IsConnected() on startup

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Expired

Bug description:
  The crash started happening this week when I upgraded to the latest
  security updates for Ubuntu 12.04.1 LTS and the 12/06 0.26-fixes
  update. At first, it only happened when recordings were starting, but
  now I can't start the backend at all.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-backend 2:0.26.0+fixes.20121206.09ac5b2-0ubuntu0mythbuntu2 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33
  Uname: Linux 3.2.0-34-generic x86_64
  NonfreeKernelModules: nvidia
  .var.log.mythtv.ffmpeg2pass.0.log:
   
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 2.0.1-0ubuntu15
  Architecture: amd64
  CrashDB: mythbuntu
  Date: Fri Dec  7 22:34:22 2012
  ExecutablePath: /usr/bin/mythbackend
  InstallationMedia: Mythbuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  Installed_mythtv_dbg: 2:0.26.0+fixes.20121206.09ac5b2-0ubuntu0mythbuntu2
  MarkForUpload: True
  ProcCmdline: /usr/bin/mythbackend --syslog local7 --user mythtv
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SegvAnalysis:
   Segfault happened at: 0x4691fd <MainServer::GetCurrentMaxBitrate()+125>:	cmpb   $0x0,0x28(%r15)
   PC (0x004691fd) ok
   source "$0x0" ok
   destination "0x28(%r15)" (0x00000028) not located in a known VMA region (needed writable region)!
   Stack memory exhausted (SP below stack segment)
  SegvReason: writing NULL VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   IsConnected (this=0x0) at encoderlink.h:45
   MainServer::GetCurrentMaxBitrate (this=0x23df9d0) at mainserver.cpp:4359
   MainServer::GetFilesystemInfos (this=0x23df9d0, fsInfos=...) at mainserver.cpp:4628
   Scheduler::FillDirectoryInfoCache (this=0x23725d0, force=<optimized out>) at scheduler.cpp:5098
   Scheduler::FillRecordingDir (this=0x23725d0, title=..., hostname=..., storagegroup=..., recstartts=..., recendts=..., cardid=17, recording_dir=..., reclist=...) at scheduler.cpp:4652
  Title: mythbackend crashed with SIGSEGV in IsConnected()
  UpgradeStatus: Upgraded to precise on 2012-10-30 (38 days ago)
  UserGroups: audio cdrom dialout video

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