From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Takashi Iwai <tiwai@suse.de>, g@x4.alsa-project.org
Cc: alsa-devel@alsa-project.org
Subject: Re: ALSA hang on 4.13.0-rc7
Date: Wed, 30 Aug 2017 15:04:44 +0200 [thread overview]
Message-ID: <20170830130444.GA288@x4> (raw)
In-Reply-To: <s5hbmmx5i4z.wl-tiwai@suse.de>
On 2017.08.30 at 14:56 +0200, Takashi Iwai wrote:
> On Wed, 30 Aug 2017 14:33:36 +0200,
> Takashi Iwai wrote:
> >
> > On Wed, 30 Aug 2017 14:26:51 +0200,
> > Markus Trippelsdorf wrote:
> > >
> > > On 2017.08.30 at 13:46 +0200, Takashi Iwai wrote:
> > > > On Wed, 30 Aug 2017 13:42:41 +0200,
> > > > Markus Trippelsdorf wrote:
> > > > >
> > > > > On 2017.08.30 at 13:34 +0200, Takashi Iwai wrote:
> > > > > > On Wed, 30 Aug 2017 13:33:40 +0200,
> > > > > > Markus Trippelsdorf wrote:
> > > > > > >
> > > > > > > On 2017.08.30 at 13:23 +0200, Takashi Iwai wrote:
> > > > > > > > On Wed, 30 Aug 2017 12:03:34 +0200,
> > > > > > > > Markus Trippelsdorf wrote:
> > > > > > > > >
> > > > > > > > > On my system ALSA sometimes hangs:
> > > > > > > > >
> > > > > > > > > sysrq: SysRq : Show Blocked State
> > > > > > > > > task PC stack pid father
> > > > > > > > > output:ALSA def D 0 171 1 0x00000000
> > > > > > > > > Call Trace:
> > > > > > > > > ? __schedule+0x17c/0x720
> > > > > > > > > ? schedule_preempt_disabled+0x2d/0x80
> > > > > > > > > ? __mutex_lock_slowpath+0x141/0x420
> > > > > > > > > ? snd_pcm_common_ioctl1+0x2f/0x1400
> > > > > > > > > ? snd_pcm_common_ioctl1+0x2f/0x1400
> > > > > > > > > ? snd_card_file_remove+0x76/0x120
> > > > > > > > > ? snd_pcm_playback_ioctl+0x1c7/0x560
> > > > > > > > > ? dput+0xb6/0x1e0
> > > > > > > > > ? SyS_ioctl+0xa7/0x860
> > > > > > > > > ? task_work_run+0x70/0xa0
> > > > > > > > > ? entry_SYSCALL_64_fastpath+0x13/0x94
> > > > > > > > >
> > > > > > > > > Only a reboot will fix the issue.
> > > > > > > >
> > > > > > > > Is this a regression?
> > >
> > > The issue started with:
> > >
> > > commit 68b4acd322494444803a3f49884ae889c8ec6689 (HEAD, refs/bisect/bad)
> > > Author: Takashi Iwai <tiwai@suse.de>
> > > Date: Tue May 24 15:07:39 2016 +0200
> > >
> > > ALSA: pcm: Apply power lock globally to common ioctls
> >
> > Thanks, that looks fitting with your problem description.
> > I'll take a deeper look.
>
> Could you try the patch below?
Yes, it fixes the problem.
Thanks.
--
Markus
next prev parent reply other threads:[~2017-08-30 13:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 10:03 ALSA hang on 4.13.0-rc7 Markus Trippelsdorf
2017-08-30 10:05 ` Markus Trippelsdorf
2017-08-30 10:15 ` Markus Trippelsdorf
2017-08-30 11:23 ` Takashi Iwai
2017-08-30 11:33 ` Markus Trippelsdorf
2017-08-30 11:34 ` Takashi Iwai
2017-08-30 11:42 ` Markus Trippelsdorf
2017-08-30 11:46 ` Takashi Iwai
2017-08-30 12:26 ` Markus Trippelsdorf
2017-08-30 12:33 ` Takashi Iwai
2017-08-30 12:56 ` Takashi Iwai
2017-08-30 13:04 ` Markus Trippelsdorf [this message]
2017-08-30 13:13 ` qTakashi Iwai
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