[Bug 209634] [NEW] firefox + flash video: crash playing second movie

knarf launchpad-ubuntu-f at unternet.org
Mon Mar 31 11:50:09 UTC 2008

Public bug reported:

Binary package hint: firefox-3.0

Firefox 3.0 beta 4 + flashplugin-nonfree leads to crashes playing second
(or third or fourth) flash movie clips. This problem has been reported
many times but so far all reports seem to be labeled 'invalid' because
the report does not contain the needed data. I can not see whether this
report contains a valid stack trace, nor do I know whether the
proprietary flash plugin leads itself to producing such.

As this is a real, existing and annoying problem and as the proprietary
flash plugin unfortunately remains the only way to play the majority of
the flash video content out 'there' on the web it would be good to find
a way to limit these crashes.

Short of breaking into Adobe to fix the bugs in their software I'm
afraid there is no real solution (given that the crashes stem from
problems in the flash plugin and not from problems in Firefox or any
related plugins that is) other than to run the flash plugin as an
external process which can be respawned if it dies. This seems to be the
way the Opera browser handles flash (and other plugins) judging from the
presence of 'operapluginwrapper' and 'operaplugincleaner' processes
which get spawned when doing anything flashy. Killing these processes
does nothing to Opera itself. Reloading the page containing the flash
content leads to these processes being respawned.

It is clear that this approach to handling unstable plugins leads to
fewer crashes related to those plugins. It also seems to lower
performance of flash somewhat. I for one would be willing to sacrifice
some performance with unstable proprietary software to gain immunity
from the many bugs hidden in the proprietary code. For free plugins this
approach should not be necessary as it is possible to actually fix the
bugs. With proprietary code this is not possible.

ProblemType: Crash
Architecture: i386
CrashCounter: 1
Date: Mon Mar 31 13:15:43 2008
Disassembly: 0xb7ff6424:
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/lib/firefox-3.0b4/firefox
NonfreeKernelModules: ath_hal
Package: firefox-3.0 3.0~b4+nobinonly-0ubuntu1
PackageArchitecture: i386
ProcCmdline: /usr/lib/firefox-3.0b4/firefox
Signal: 11
SourcePackage: firefox-3.0
Stacktrace: #0  0xb7ff6424 in ?? ()
StacktraceTop: ?? ()
Title: firefox crashed with SIGSEGV
Uname: Linux 2.6.25-rc6-t23-200803190110 i686
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev powerdev pulse-rt sambashare scanner src tape video

** Affects: firefox-3.0 (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: apport-crash apport-failed-retrace

firefox + flash video: crash playing second movie
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