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 26 Feb 2011 01:04:38 AM UTC  
Category:  plugin Severity:  4 - Important
Release:  master Status:  Fixed
Privacy:  Public Assigned to:  Bastiaan Jacques <bjacques>
Open/Closed:  Closed

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( Jump to the original submission)

Wed 10 Jul 2013 03:01:37 PM UTC, 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 05 Jun 2011 10:50:09 AM UTC, 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 05 Jun 2011 01:28:47 AM UTC, comment #9:

New crash report :


Hicham HAOUARI <hichamhaouari>
Project Member
Mon 02 May 2011 01:27:07 PM UTC, comment #8:

New crash report :


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

New crash report :


Hicham HAOUARI <hichamhaouari>
Project Member
Sun 10 Apr 2011 11:12:27 PM UTC, comment #6:

Bug isn't fixed in 0.8.9 :


Crashes with older versions of gnash :


Hicham HAOUARI <hichamhaouari>
Project Member
Tue 01 Mar 2011 10:39:14 AM UTC, comment #5:

Can't reproduce it now, thanks.

Hicham HAOUARI <hichamhaouari>
Project Member
Sun 27 Feb 2011 12:21:54 AM UTC, comment #4:

I confirm it doesn't crash anymore. Thanks.

Gabriele Giacone <gg0>
Project Member
Sat 26 Feb 2011 10:59:32 PM UTC, 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 26 Feb 2011 01:38:40 PM UTC, comment #2:

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


Attached backtrace.

(file #22788)

Gabriele Giacone <gg0>
Project Member
Sat 26 Feb 2011 02:11:35 AM UTC, 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 26 Feb 2011 01:04:38 AM UTC, 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 Files:

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


Depends on the following items: None found

Items that depend on this one: None found


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

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    Follow 16 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2014-04-18 bjacques StatusNeed Info => Fixed
        Open/ClosedOpen => Closed
    2013-07-10 bjacques Severity5 - Blocker => 4 - Important
    2013-07-09 bjacques StatusConfirmed => Need Info
    2011-04-10 bjacques Open/ClosedClosed => Open
    2011-04-10 hichamhaouari StatusFixed => Confirmed
    2011-03-01 strk StatusReady For Test => Fixed
        Open/ClosedOpen => Closed
    2011-02-26 bjacques StatusIn Progress => Ready For Test
    2011-02-26 gg0 Attached File- => Added bt.log, #22788
        ReleaseNone => master
    2011-02-26 bjacques SummaryCrash with BadWindow(Invalid Window parameter ) => Plugin freezes Firefox 3.6
    2011-02-26 bjacques StatusNone => In Progress
        Assigned toNone => bjacques
    2011-02-26 bjacques CategoryNone => plugin
        Severity3 - Normal => 5 - Blocker

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