mplayerplug-in for mozilla / Bugs / #142 mplayerplugin leaves zombies

Nobody/Anonymous - 2007-12-29

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please upgrade your mplayer. I have seen this happen on several machines and usually a reinstall of mplayer fixes it.

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Kevin DeKorte - 2008-01-30

status: open --> closed
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Nobody/Anonymous - 2008-01-31

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Tested with the latest,
[root@dbera debajyoti]# rpm -qa mplayer*
mplayer-1.0-1.rc2.3plf2008.0
mplayerplugin-3.45-1mdv2008.0

Visited http://fredrik.hubbe.net/plugger/test.html

[debajyoti@dbera kio-beagle]$ ps aux | grep mpla
502 7897 6.6 6.6 67004 16568 ? SLs 20:42 0:02 mplayer -wid 0x3e1fc8f -vf scale=400:-3 -vo gl2 -ao alsa -osdlevel 3 -nojoystick -noconsolecontrols -cookies -softvol -slave -user-agent NSPlayer -nomouseinput -cache 2048 /home/debajyoti/tmp/mplayfRzmi2
502 7906 0.0 0.9 43484 2308 ? S 20:43 0:00 mplayer -wid 0x3e1fc8f -vf scale=400:-3 -vo gl2 -ao alsa -osdlevel 3 -nojoystick -noconsolecontrols -cookies -softvol -slave -user-agent NSPlayer -nomouseinput -cache 2048 /home/debajyoti/tmp/mplayfRzmi2
502 7917 0.0 0.2 3072 716 pts/2 R+ 20:43 0:00 grep --color=tty mpla

Once the video is finished (this stays like this even after I move to a different webpage):

[debajyoti@dbera kio-beagle]$ ps aux | grep mpla
502 7897 6.7 0.0 0 0 ? Zs 20:42 0:03 [mplayer] <defunct>
502 7921 0.0 0.2 3072 724 pts/2 R+ 20:43 0:00 grep --color=tty mpla

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dBera - 2008-01-31

status: closed --> open
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dBera - 2008-01-31

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user_id=350837
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Reopening.
Tested also with MPlayer 1.0-1.rc2.5mdv2008.1-4.2.2 which is the latest from mplayer. Problem exists. I started firefox from a console and found these debug messages:

---------------
Cannot sync MAD frame.2 A-V: -0.643 ct: -0.042 303/303 10% 66% 4.5% 8 0 0%
Cannot sync MAD frame.3 A-V: -0.643 ct: -0.051 304/304 10% 65% 4.5% 8 0 0%
READ: A: 24.6 V: 25.3 A-V: -0.641 ct: -0.059 304/304 10% 65% 4.5% 8 0 0%
READ:
READ: Exiting... (End of file)
----player thread: breaking read loop - Exiting
----player thread: tryagain = 0
----player thread: playNode returned = 0
markPlayed
marking http://fredrik.hubbe.net/plugger/xvidtest.avi as played
----player thread: played = 1 - /home/debajyoti/tmp/mplayeQHBAM
----player thread: close done
mmsstream = 0 errorcode = 0
----player thread: transitioning to next item
----player thread: entering loop. loop_count = -1
----player thread: looking for node to play
----player thread: play = 1 played = 1 entry = -1 fname = /home/debajyoti/tmp/mplayeQHBAM
----player thread: local_list is NULL loop_count = -1
----player thread: loop_count = -2 loop_single = 0
----player thread: nothing on the list to play
----player thread: nothing to play
----player thread: callbacks complete
----player thread: normal exit
stop clickd
in SetFullscreen with 0
fullscreen = 0
height = 300 and width = 400
shut called
shutdown called
Trying to kill mplayer process(9114), if it still exists
mplayer dead
Window Cleaned up
Entering deleteList
DELETE http://fredrik.hubbe.net/plugger/xvidtest.avi
File to delete /home/debajyoti/tmp/mplayeQHBAM
size: 403456
remove: 1
play: 1
played: 1
playlist: 0
speed: -1
cancelled: 0
retrieved: 1
entry: -1
mms stream: 0
cache bytes: 2097152
Actual Size: 400x250
Play Size: 400x250
fname: /home/debajyoti/tmp/mplayeQHBAM deleted
memory free
~nsPluginInstance called

---------------------------------
Note that the process 9114 mentioned above exists even after moving to a different page as a zombie (which is why it could not be killed).

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dBera - 2008-01-31

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A quick scan reveals this commit removed the signal handler for SIGCHLD - thus, as signal handling textbook says (*), the mplayer process will wait to be reaped by the parent and hence exist in a zombie state. I have no idea how others have not noticed this problem.
http://mplayerplug-in.cvs.sourceforge.net/mplayerplug-in/mplayerplug-in/Source/plugin-threads.cpp?r1=1.269&r2=1.270

(*) http://www.wlug.org.nz/SIGCHLD

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Cerin - 2008-02-13

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I'm not sure it's an identical problem, but I experience something similar. I'm on Fedora 8, and whenever I view media with mplayerplug-in in Firefox, and then close the tab, Firefox completely locks up until I kill the corresponding instance of mplayer running in the background. This isn't technically a zombie, since it's killable, but it's still annoying all the same.

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Miklos Vajna - 2008-07-01

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i can still reproduce this problem. :/

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Mikolaj Kucharski - 2008-10-23

Hi,

I'm using OpenBSD and I can confirm similar problem. Watching viedo and closing tab in firefox before movie ends (during mplayer is running) freezes the browser. You need to pkill(1) mplayer and browser is back to normal again.

# pkg_info | grep mplayer
mplayer-1.0rc2p8 movie player supporting MPEG, DivX, AVI, ASF, MOV & more
mplayerplug-in-3.55 embedded video player for mozilla

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mplayerplugin leaves zombies

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#142 mplayerplugin leaves zombies

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