kernel_optimize_test/sound/pci/hda
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
..
hda_codec.c [ALSA] hda-codec - Fix unbalanced mutex 2008-04-24 12:00:33 +02:00
hda_codec.h [ALSA] hda-codec - keep the format verb at closing PCM streams 2008-04-24 12:00:26 +02:00
hda_generic.c [ALSA] hda-codec - keep the format verb at closing PCM streams 2008-04-24 12:00:26 +02:00
hda_hwdep.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
hda_intel.c [ALSA] hda-intel - Add sync support 2008-04-24 12:00:27 +02:00
hda_local.h [ALSA] Move vmaster code to sound core 2008-04-24 12:00:12 +02:00
hda_patch.h [ALSA] sound: hda: missing includes of hda_patch.h 2008-04-24 12:00:19 +02:00
hda_proc.c [ALSA] hda-codec - Fix amp-in values for pin widgets 2008-02-22 14:20:09 -08:00
Makefile [ALSA] Keep private TLV entry in vmaster itself 2008-04-24 12:00:12 +02:00
patch_analog.c [ALSA] hda-codec - Support of Lenovo Thinkpad X300 2008-04-24 12:00:27 +02:00
patch_atihdmi.c [ALSA] sound: hda: missing includes of hda_patch.h 2008-04-24 12:00:19 +02:00
patch_cmedia.c [ALSA] hda-codec - keep the format verb at closing PCM streams 2008-04-24 12:00:26 +02:00
patch_conexant.c [ALSA] hda-codec - keep the format verb at closing PCM streams 2008-04-24 12:00:26 +02:00
patch_realtek.c [ALSA] hda-codec - PCI quirk for MSI laptop 2008-04-24 12:00:33 +02:00
patch_si3054.c [ALSA] sound: hda: missing includes of hda_patch.h 2008-04-24 12:00:19 +02:00
patch_sigmatel.c [ALSA] hda: 92hd71bxxx DMIC nid 2008-04-24 12:00:29 +02:00
patch_via.c [ALSA] hda-codec - keep the format verb at closing PCM streams 2008-04-24 12:00:26 +02:00