linux-kernel - mplayer v4l hangs in 2.6.25.2/4

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Date:	Sat, 17 May 2008 18:54:06 +0200
From:	"koos vriezen" <koos.vriezen@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: mplayer v4l hangs in 2.6.25.2/4

Hi,

I'm using mplayer for tv watch quite some kernels but 2.6.25 makes
mplayer unkillable. Last working kernel is 2.24.5 that I have tried.

This gets printed on the console

INFO: task mplayer:3465 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
mplayer       D 0000000000000000     0  3465   3464
 ffff810074333c68 0000000000200086 0000000000000000 00000000ffffffff
 ffff81007a3889c0 ffff810074333c18 ffff810074333c98 ffffffff8064a800
 ffffffff8064a800 ffffffff80646eb0 ffffffff8064a800 ffff8100757c1900
Call Trace:
 [<ffffffff8049b26f>] __mutex_lock_slowpath+0x68/0xa0
 [<ffffffff802274aa>] enqueue_task_fair+0x72/0x9b
 [<ffffffff8049b0ee>] mutex_lock+0x1a/0x1e
 [<ffffffff802265aa>] enqueue_task+0x13/0x1e
 [<ffffffff880b51ab>] :videobuf_core:videobuf_mmap_setup+0x1c/0x45
 [<ffffffff8813dbbe>] :bttv:vidiocgmbuf+0x2c/0x99
 [<ffffffff8810b91d>] :videodev:__video_do_ioctl+0xa1/0x2ad9
 [<ffffffff802272d5>] set_next_entity+0x18/0x36
 [<ffffffff8049aa70>] thread_return+0x3a/0xa4
 [<ffffffff8810e622>] :videodev:video_ioctl2+0x17c/0x210
 [<ffffffff80238c7b>] ptrace_stop+0xfc/0x140
 [<ffffffff8023a705>] ptrace_notify+0x83/0xa6
 [<ffffffff80289221>] vfs_ioctl+0x55/0x6b
 [<ffffffff8028948a>] do_vfs_ioctl+0x253/0x264
 [<ffffffff802894ec>] sys_ioctl+0x51/0x71
 [<ffffffff8020bef8>] int_very_careful+0x35/0x3e
 [<ffffffff8020be79>] tracesys+0xdc/0xe1

I've attached what might be usable wrt to this.

Please fix :-)

Best regards,

Koos Vriezen

Download attachment "mplayer.strace.gz" of type "application/x-gzip" (7996 bytes)

Download attachment "dmesg.out.gz" of type "application/x-gzip" (8487 bytes)

Download attachment "lsmod.out.gz" of type "application/x-gzip" (1354 bytes)

Download attachment "lspci.out.gz" of type "application/x-gzip" (1917 bytes)

Download attachment "config-2.6.25.4.gz" of type "application/x-gzip" (17174 bytes)