bugGnash - The GNU Flash player - Bugs: bug #32601, Plugin freezes Firefox 3.6


bug #32601: Plugin freezes Firefox 3.6

Submitted by:  Hicham HAOUARI <hichamhaouari>
Submitted on:  Sat Feb 26 01:04:38 2011  
Category: pluginSeverity: 4 - Important
Release: masterStatus: Fixed
Privacy: PublicAssigned to: Bastiaan Jacques <bjacques>
Open/Closed: Closed

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(Jump to the original submission Jump to the original submission)

Wed Jul 10 15:01:37 2013, comment #11:

I have seen no new reports of freezes in Firefox, and in any event have not been able to reproduce any since the original bugfix. So possibly this bug is fixed, but certainly it shouldn't hold anything up.

Bastiaan Jacques <bjacques>
Project MemberIn charge of this item.
Sun Jun 5 10:50:09 2011, comment #10:

Hicham, I am not sure that every bug you posted here is a Firefox freeze, particularly, if the user doesn't report a frozen browser, . I expect there can be different bugs leading to the same X error backtrace.

Bastiaan Jacques <bjacques>
Project MemberIn charge of this item.
Sun Jun 5 01:28:47 2011, comment #9:

New crash report :


Hicham HAOUARI <hichamhaouari>
Project Member
Mon May 2 13:27:07 2011, comment #8:

New crash report :


Hicham HAOUARI <hichamhaouari>
Project Member
Wed Apr 20 10:23:21 2011, comment #7:

New crash report :


Hicham HAOUARI <hichamhaouari>
Project Member
Sun Apr 10 23:12:27 2011, comment #6:

Bug isn't fixed in 0.8.9 :


Crashes with older versions of gnash :


Hicham HAOUARI <hichamhaouari>
Project Member
Tue Mar 1 10:39:14 2011, comment #5:

Can't reproduce it now, thanks.

Hicham HAOUARI <hichamhaouari>
Project Member
Sun Feb 27 00:21:54 2011, comment #4:

I confirm it doesn't crash anymore. Thanks.

Gabriele Giacone <gg0>
Project Member
Sat Feb 26 22:59:32 2011, comment #3:

The plugin freeze now should be fixed. The other issues (which only occur when Firefox freezes) are not.

Bastiaan Jacques <bjacques>
Project MemberIn charge of this item.
Sat Feb 26 13:38:40 2011, comment #2:

Forwarding http://bugs.debian.org/609185.


Attached backtrace.

(file #22788)

Gabriele Giacone <gg0>
Project Member
Sat Feb 26 02:11:35 2011, comment #1:

Well, this is a pretty amazing steaming pile of crap.

Bugs (not in order of embarassment):

1. The plugin performs a blocking read on the "control" file descriptor. When something unexpected happens and the data doesn't arrive as expected, the plugin blocks, resulting in Firefox's main thread freezing. (plugin.cpp)

2. BOTH plugin.cpp and pluginScriptObject.cpp are monitoring the "control" file descriptor, and they will both attempt to read from it and pluginScriptObject will even write to it! Communication will be difficult when the recipient keeps changing. Worse yet, the plugin is sending messages to itself.

3. When the user gets fed up with item 1 and kills the browser, the Gnash process receives a BadWindow. I'm not sure if this is a bug in X, GTK, Firefox or Gnash.

Bastiaan Jacques <bjacques>
Project MemberIn charge of this item.
Sat Feb 26 01:04:38 2011, original submission:

Original bug report is at : https://bugzilla.redhat.com/show_bug.cgi?id=680556.

How to reproduce :

1. Open Firefox 3.6.13 (can't reproduce with either Chromium or Firefox 4)
2. Visit http://rutracker.org/forum/index.php
3. Reload a few times, until browser freezes
4. Force-quit the browser

Hicham HAOUARI <hichamhaouari>
Project Member


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):

Attached Files
file #22788:  bt.log added by gg0 (16kB - text/x-log)


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -unavailable- added by strk (Updated the item)
  • -unavailable- added by gg0 (Updated the item)
  • -unavailable- added by bjacques (Posted a comment)
  • -unavailable- added by hichamhaouari (Submitted the item)

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    Follow 16 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri Apr 18 00:32:41 2014bjacquesStatusNeed Info=>Fixed
    Wed Jul 10 15:01:37 2013bjacquesSeverity5 - Blocker=>4 - Important
    Tue Jul 9 21:29:47 2013bjacquesStatusConfirmed=>Need Info
    Sun Apr 10 23:45:55 2011bjacquesOpen/ClosedClosed=>Open
    Sun Apr 10 23:09:59 2011hichamhaouariStatusFixed=>Confirmed
    Tue Mar 1 11:00:38 2011strkStatusReady For Test=>Fixed
    Sat Feb 26 22:59:32 2011bjacquesStatusIn Progress=>Ready For Test
    Sat Feb 26 13:38:40 2011gg0Attached File-=>Added bt.log, #22788
    Sat Feb 26 13:07:44 2011bjacquesSummaryCrash with BadWindow(Invalid Window parameter )=>Plugin freezes Firefox 3.6
    Sat Feb 26 12:31:48 2011bjacquesStatusNone=>In Progress
      Assigned toNone=>bjacques
    Sat Feb 26 02:11:35 2011bjacquesCategoryNone=>plugin
      Severity3 - Normal=>5 - Blocker

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