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[Ryan Tandy <875538@xxxxxxxxxxxxxxxxxx>]

pstree:

firefox-bin─┬─plugin-containe───{plugin-contain}
            └─2*[{firefox-bin}]

backtraces for firefox-bin (3 threads):

#0  0x00463422 in __kernel_vsyscall ()
#1  0x00830b5d in pthread_join () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x01666f32 in PlatformThread::Join (thread_handle=3073375088) at ./src/base/platform_thread_posix.cc:119
#3  0x016546b1 in base::Thread::Stop (this=0xb7601200) at ./src/base/thread.cc:114
#4  0x015ed24b in ~BrowserProcessSubThread (this=0xb7601200, __in_chrg=<value optimized out>) at BrowserProcessSubThread.cpp:89
#5  0x0167c957 in mozilla::ShutdownXPCOM (servMgr=0xb7661344) at nsXPComInit.cpp:979
#6  0x00d3bf54 in ~ScopedXPCOMStartup (this=0xbfd2a75c, __in_chrg=<value optimized out>) at nsAppRunner.cpp:1052
#7  0x00d3fee4 in XRE_main (argc=1, argv=0xbfd2aa14, aAppData=0xb7618380) at nsAppRunner.cpp:3539
#8  0x00ac49e3 in main (argc=1, argv=0xbfd2aa14) at nsBrowserApp.cpp:158

#0  0x006b1422 in __kernel_vsyscall ()
#1  0x17788b86 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0x00eea8e9 in google_breakpad::CrashGenerationServer::Run (this=0xacfe7310) at crash_generation_server.cc:278
#3  0x00eea94c in google_breakpad::CrashGenerationServer::ThreadMain (arg=0xacfe7310) at crash_generation_server.cc:462
#4  0x00c3a96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0x17796a4e in clone () from /lib/tls/i686/cmov/libc.so.6

#0  0x006b1422 in __kernel_vsyscall ()
#1  0x00c42e0b in waitpid () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0180e36f in WaitForChildExit (this=0xab62e130) at ./src/chrome/common/process_watcher_posix_sigchld.cc:112
#3  0x0180e3d4 in KillProcess (this=0xab62e130) at ./src/chrome/common/process_watcher_posix_sigchld.cc:159
#4  0x0180e51a in ~ChildGrimReaper (this=0xab62e130, __in_chrg=<value optimized out>) at ./src/chrome/common/process_watcher_posix_sigchld.cc:134
#5  0x017e5d33 in MessageLoop::DeletePendingTasks (this=0xb71ff1d8) at ./src/base/message_loop.cc:422
#6  0x017e695d in ~MessageLoop (this=0xb71ff1d8, __in_chrg=<value optimized out>) at ./src/base/message_loop.cc:148
#7  0x017f25a0 in base::Thread::ThreadMain (this=0xb7501200) at ./src/base/thread.cc:175
#8  0x01804f0b in ThreadFunc (closure=0xb7501200) at ./src/base/platform_thread_posix.cc:26
#9  0x00c3a96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#10 0x17796a4e in clone () from /lib/tls/i686/cmov/libc.so.6

I wasn't able to attach to the plugin-container process.  gdb says
"ptrace: Operation not permitted".

So far I've only been able to reproduce this bug on machines with NVIDIA
graphics hardware and Flash 11.  All of them have been running the
nvidia-current proprietary driver; I haven't had a chance to check nv
yet.  My laptop with ATi graphics and my Virtualbox VMs don't seem to be
affected.  We downgraded a lot of workstations to the previous adobe-
flashplugin package (10.3) to work around the bug.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/875538

Title:
  [Firefox 3.6.23] Impossible to open firefox because firefox-bin
  process is still running

Status in “firefox” package in Ubuntu:
  Invalid
Status in “flashplugin-nonfree” package in Ubuntu:
  Invalid
Status in “firefox” source package in Lucid:
  Triaged
Status in “flashplugin-nonfree” source package in Lucid:
  Triaged
Status in “firefox” source package in Maverick:
  Triaged
Status in “flashplugin-nonfree” source package in Maverick:
  Triaged

Bug description:
  After upgrading firefox to version 3.6.23 few days ago, firefox does
  not work properly.

  At firt use after computer starting, firefox works well.
  It is possible to close firefox without any issue.
  But at second starting, firefox indicates it is impossible to launch firefox because firefox-bin process is still running.
  The workaround is to restart the computer, or simply kill the firefox-bin process.

  This behaviour happened right after upgrading firefox to version
  3.6.23, and is systematic with the profil user I use (it's an admin
  user).

  I tested with another profil (non admin) on the computer: The problem
  has not been reproduced.

  System is 10.04 LTS (kernel 2.6.32-33 generic)

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