linux-traipu team mailing list archive

["D. Hugh Redelmeier" <hugh@xxxxxxxxxx>]

The trac ticket I reported points at a glibc patch from Red Hat.  My
Ubuntu 12.04 glibc already has that patch, so it cannot be the fix.

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https://bugs.launchpad.net/bugs/1186626

Title:
  mythcommflag assert failure: *** glibc detected ***
  /usr/bin/mythcommflag: invalid fastbin entry (free):
  0x00007f22ec0164b0 ***

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  MythTV has been popping up a few crash messages recently.  This is the
  first that would allow me to report: earlier crashes were while there
  were updated packages that I hadn't installed.

  according to code.mythtv.org/trac/ticket/10201 some other people are
  experiencing the same symptom.  That ticket is locked with because
  they beleive "glibc bug, not mythtv bug".  Of the two new reports in
  the last few days, both are on Ubuntu systems whereas earlier ones
  were on Fedora (I haven't checked carefully).

  On comment on that ticket is that
  https://bugzilla.redhat.com/show_bug.cgi?id=593396 includes a glibc
  patch that fixes this symptom.

  Summary: this might be a glibc bug with a known fix.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-backend 2:0.26.0+fixes.20130530.bfd2408-0ubuntu0mythbuntu1 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-38.61-generic 3.2.37
  Uname: Linux 3.2.0-38-generic x86_64
  NonfreeKernelModules: nvidia
  .var.log.mythtv.mtd.log:
   mtd started at Sat Jan 8 00:13:43 2011
   mtd is running on a host called redblack
   00:13:43: Waiting for connections/jobs
   00:13:43: mtd is listening on port 2442
  .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.mythmetadatalookup.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythtranscode.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 2.0.1-0ubuntu17.2
  Architecture: amd64
  AssertionMessage: *** glibc detected *** /usr/bin/mythcommflag: invalid fastbin entry (free): 0x00007f22ec0164b0 ***
  CrashDB: mythbuntu
  Date: Sat Jun  1 04:01:15 2013
  ExecutablePath: /usr/bin/mythcommflag
  Installed_mythtv_dbg: 2:0.26.0+fixes.20130530.bfd2408-0ubuntu0mythbuntu1
  MarkForUpload: True
  ProcCmdline: /usr/bin/mythcommflag -j 4586 --noprogress --verbose general --loglevel info --quiet --syslog local7
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
  Signal: 6
  SourcePackage: mythtv
  StacktraceTop:
   __libc_message (do_abort=2, fmt=0x7f23200c5008 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
   malloc_printerr (action=3, str=0x7f23200c192b "invalid fastbin entry (free)", ptr=<optimized out>) at malloc.c:5018
   tzset_internal (explicit=<optimized out>, always=<optimized out>) at tzset.c:435
   __tzset () at tzset.c:590
   QTime::currentTime () at tools/qdatetime.cpp:3116
  Title: mythcommflag assert failure: *** glibc detected *** /usr/bin/mythcommflag: invalid fastbin entry (free): 0x00007f22ec0164b0 ***
  UpgradeStatus: Upgraded to precise on 2013-03-01 (92 days ago)
  UserGroups: audio cdrom dialout video

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