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[Bug 764621] Re: /usr/lib/firefox-4.0/plugin-container hangs upon Firefox exit, which prevents computer shutdown from GNOME

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Michael Mess <764621@xxxxxxxxxxxxxxxxxx>
Date: Wed, 11 Jan 2012 14:05:49 -0000
Reply-to: Bug 764621 <764621@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

michael@quad:/proc/18768$ cat status
Name:	plugin-containe
State:	T (tracing stop)
Tgid:	18768
Pid:	18768
PPid:	18727
TracerPid:	18767
Uid:	1000	1000	1000	1000
Gid:	1000	1000	1000	1000
FDSize:	256
Groups:	4 20 24 25 29 30 44 46 107 109 115 129 135 139 1000 
VmPeak:	  132316 kB
VmSize:	  104156 kB
VmLck:	       0 kB
VmHWM:	   40712 kB
VmRSS:	   18380 kB
VmData:	   44800 kB
VmStk:	      88 kB
VmExe:	       4 kB
VmLib:	   54888 kB
VmPTE:	     268 kB
Threads:	2
SigQ:	0/16382
SigPnd:	0000000000000000
ShdPnd:	0000000000000000
SigBlk:	0000000000000000
SigIgn:	0000000000001000
SigCgt:	00000001800a04e8
CapInh:	0000000000000000
CapPrm:	0000000000000000
CapEff:	0000000000000000
CapBnd:	ffffffffffffffff
Cpus_allowed:	f
Cpus_allowed_list:	0-3
Mems_allowed:	1
Mems_allowed_list:	0
voluntary_ctxt_switches:	4591
nonvoluntary_ctxt_switches:	5

michael@quad:/proc/18768$ cat stack 
[<c015f939>] ptrace_stop+0x99/0x160
[<c0160244>] get_signal_to_deliver+0x1b4/0x3c0
[<c01030a3>] do_signal+0x73/0x170
[<c01031f5>] do_notify_resume+0x55/0x80
[<c01034c8>] work_notifysig+0x13/0x1b
[<ffffffff>] 0xffffffff

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https://bugs.launchpad.net/bugs/764621

Title:
  /usr/lib/firefox-4.0/plugin-container hangs upon Firefox exit, which
  prevents computer shutdown from GNOME

Status in “firefox” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: firefox

  Every time I exit Firefox before rebooting this host running a classic
  GNOME session, it hangs there, effectivel preventing the reboot from
  taking place unless Firefox is first force-killed. The cause seems to
  be that Firefox's plugin container has a dozen of Gnash sub-processes
  that won't terminate.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: firefox 4.0+nobinonly-0ubuntu2
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  Architecture: i386
  Date: Mon Apr 18 16:21:00 2011
  FirefoxPackages:
   firefox 4.0+nobinonly-0ubuntu2
   flashplugin-installer N/A
   adobe-flashplugin N/A
   icedtea-plugin N/A
  ProcEnviron:
   LANGUAGE=fi_FI:fi_FI.UTF-8:fi
   PATH=(custom, user)
   LANG=fi_FI.UTF-8
   SHELL=/bin/bash
  SourcePackage: firefox
  UpgradeStatus: Upgraded to natty on 2009-09-14 (581 days ago)

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