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eaa9985b4e
kernel_optimize_test/sound
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Frederik Deweerdt eaa9985b4e [ALSA] hda-codec - Fix unbalanced mutex 
On Wed, Apr 02, 2008 at 08:19:29AM -0400, Miles Lane wrote:
> [   48.765906] [ BUG: bad unlock balance detected! ]
> [   48.765912] -------------------------------------
> [   48.765918] pulseaudio/4277 is trying to release lock
> (&codec->spdif_mutex) at:
> [   48.765930] [<c03031b7>] mutex_unlock+0x8/0xa
> [   48.765945] but there are no more locks to release!
> [   48.765950]
> [   48.765952] other info that might help us debug this:
> [   48.765959] 2 locks held by pulseaudio/4277:
> [   48.765965]  #0:  (&pcm->open_mutex){--..}, at: [<f89f134b>]
> snd_pcm_open+0xc1/0x1ba [snd_pcm]
> [   48.766003]  #1:  (&chip->open_mutex){--..}, at: [<f8b4f13d>]
> azx_pcm_open+0x36/0x184 [snd_hda_intel]
> [   48.766057]
> [   48.766059] stack backtrace:
> [   48.766066] Pid: 4277, comm: pulseaudio Not tainted 2.6.25-rc8-mm1 #12
> [   48.766086]  [<c013afc6>] print_unlock_inbalance_bug+0xce/0xd8
> [   48.766107]  [<c0109e1c>] ? save_stack_trace+0x1d/0x3b
> [   48.766130]  [<c012f54e>] ? __kernel_text_address+0x1b/0x27
> [   48.766146]  [<c0104533>] ? dump_trace+0xcd/0xd9
> [   48.766160]  [<c0109d9e>] ? save_stack_address+0x0/0x2c
> [   48.766176]  [<c013b80a>] ? find_usage_backwards+0xa4/0xc3
> [   48.766193]  [<c013cfb5>] lock_release_non_nested+0x84/0x120
> [   48.766209]  [<c03031b7>] ? mutex_unlock+0x8/0xa
> [   48.766222]  [<c013d1bb>] lock_release+0x16a/0x199
> [   48.766238]  [<c0303137>] __mutex_unlock_slowpath+0xa9/0x121
> [   48.766252]  [<c03031b7>] mutex_unlock+0x8/0xa
> [   48.766263]  [<f8b4ffd8>] snd_hda_multi_out_analog_open+0xd3/0xef
> [snd_hda_intel]

The following patch should fix it.

Cc: "Miles Lane" <miles.lane@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:33 +02:00
..
aoa [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
arm [ALSA] sound: replace remaining __FUNCTION__ occurences 2008-04-24 12:00:20 +02:00
core [ALSA] sound: replace remaining __FUNCTION__ occurences 2008-04-24 12:00:20 +02:00
drivers [ALSA] pcsp: remove downsampling 2008-04-24 12:00:30 +02:00
i2c [ALSA] some fixes and cleanup for ICE1724 cards 2008-04-24 12:00:25 +02:00
isa [ALSA] sound: replace remaining __FUNCTION__ occurences 2008-04-24 12:00:20 +02:00
mips [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
oss sound: Use BUG_ON 2008-04-24 12:00:22 +02:00
parisc [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
pci [ALSA] hda-codec - Fix unbalanced mutex 2008-04-24 12:00:33 +02:00
pcmcia [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
ppc ALSA: Storage class should be before const qualifier 2008-04-21 22:25:51 +00:00
sh [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
soc [ALSA] soc - Include register in DAPM debug output 2008-04-24 12:00:33 +02:00
sparc [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
spi [ALSA] at73c213: Add constraints for periods value 2008-04-24 12:00:26 +02:00
synth [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
usb [ALSA] usb-audio - Add a proper error check 2008-04-24 12:00:25 +02:00
ac97_bus.c
Kconfig [ALSA] Add SPI devices to ALSA Kconfig and Makefile 2007-10-16 15:57:47 +02:00
last.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
Makefile [ALSA] Add SPI devices to ALSA Kconfig and Makefile 2007-10-16 15:57:47 +02:00
sound_core.c
sound_firmware.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00