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** Changed in: mythtv
       Status: New => Unknown

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https://bugs.launchpad.net/bugs/727251

Title:
  mythfrontend.real crashed with SIGSEGV in __memcpy_ssse3()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Triaged
Status in MythTV:
  Unknown

Bug description:
  Failed to stop decoder loop (QMutex::unlock: mutex lock failure)

  * Used Handbrake 0.9.5 to rip Firefly E01E08 using default high
  profile settings (1.7 Mbps) - worked fine.

  * Re-ripped with bitrate set real high (17.6 Mbps).  Video will not
  play back - it just dumps me back to mythvideo after a while of
  "Please Wait...".  One time I pressed <ESC> while the "please wait"
  was up, and it went to a blank screen and hung instead.  I repeated it
  a second time, although the second log did not mention the mutex lock
  failure that the first one did.

  Semi-related note: I've also seen where mythfrontend almost seems to
  get into a state where it won't show certain videos... I can hear the
  audio, but the screen simply shows the background image for the theme.
  I remember seeing someone else reporting this behavior recently, but I
  can't find it right now.  I'm less certain that I can reproduce this.

  
  ProblemType: Crash
  DistroRelease: Ubuntu 10.04
  Package: mythtv-frontend 2:0.24.0+fixes.20110301.bbfb6b0-0ubuntu0mythbuntu1
  ProcVersionSignature: Ubuntu 2.6.32-27.49-generic 2.6.32.26+drm33.12
  Uname: Linux 2.6.32-27-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  CrashDB: mythbuntu
  Date: Tue Mar  1 10:01:18 2011
  ExecutablePath: /usr/bin/mythfrontend.real
  Installed_mythtv_dbg: 2:0.24.0+fixes.20110301.bbfb6b0-0ubuntu0mythbuntu1
  ProcCmdline: /usr/bin/mythfrontend.real --logfile /var/log/mythtv/mythfrontend.log
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x145a981 <__memcpy_ssse3+2433>:	movdqu %xmm0,(%esi)
   PC (0x0145a981) ok
   source "%xmm0" ok
   destination "(%esi)" (0xb271d008) not located in a known VMA region (needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   __memcpy_ssse3 () at ../sysdeps/i386/i686/multiarch/memcpy-ssse3.S:869
   ?? ()
   ?? ()
  Title: mythfrontend.real crashed with SIGSEGV in __memcpy_ssse3()
  UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin plugdev sambashare scanner tape video
  XsessionErrors: (polkit-gnome-authentication-agent-1:2420): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

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