plugin-container crashed with SIGSEGV in pthread_mutex_lock()

[marcelo]

Binary package hint: firefox

I have 19 tabs (a wide variety of places from gmail to a newspaper) in my firefox, and when I start it, after asking me for the security password, the error window apears. It happens every time, sometimes a bit later, after an upgrade from 9.10 to 10.04.

firefox:
  Installed: 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
  Candidate: 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
  Version table:
 *** 3.6.8+build1+nobinonly-0ubuntu0.10.04.1 0
        500 http://ftp.usf.edu/pub/ubuntu/ lucid-updates/main Packages
        500 http://ftp.usf.edu/pub/ubuntu/ lucid-security/main Packages
        100 /var/lib/dpkg/status
     3.6.3+nobinonly-0ubuntu4 0
        500 cdrom://Ubuntu 10.04 LTS _Lucid Lynx_ - Release i386 (20100427.1)/ lucid/main Packages
        500 http://ftp.usf.edu/pub/ubuntu/ lucid/main Packages

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: firefox 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
ProcVersionSignature: Ubuntu 2.6.32-24.38-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
Architecture: i386
CrashCounter: 1
Date: Tue Aug 3 14:39:25 2010
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/firefox-3.6.8/plugin-container
FirefoxPackages:
 firefox 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
 firefox-gnome-support 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
 firefox-branding 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
 abroswer N/A
 abrowser-branding N/A
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
ProcCmdline: /usr/lib/firefox-3.6.8/plugin-container /home/hostname/.mozilla/plugins/libflashplayer.so 25353 plugin
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xf74f2d <pthread_mutex_lock+29>: mov 0xc(%esi),%edi
 PC (0x00f74f2d) ok
 source "0xc(%esi)" (0xb5f6d030) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: firefox
StacktraceTop:
 pthread_mutex_lock ()
 ?? () from /home/hostname/.mozilla/plugins/libflashplayer.so
 ?? () from /home/hostname/.mozilla/plugins/libflashplayer.so
 ?? () from /home/hostname/.mozilla/plugins/libflashplayer.so
 ?? () from /home/hostname/.mozilla/plugins/libflashplayer.so
Title: plugin-container crashed with SIGSEGV in pthread_mutex_lock()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 pthread_mutex_lock ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. However, your crash report didn't yield the required information. Please go ahead and submit a new crash report if it crashed again with the latest available package. Thanks in advance for your cooperation and understanding.