Hi,
On Sep 2 2017 10:19, Takashi Sakamoto wrote:
Well, in sound subsystem, there're a few drivers which uses hrtimer:
- snd-pcsp
- snd-sh-dac-audio
- snd-soc-imx-pcm-fiq
As a quick glance, 'snd-sh-dac-audio' includes the same bug, too.
Additionally, 'snd-soc-imx-pcm-fiq' maintains hrtime
On p 1 2017 20:58, Takashi Iwai wrote:
>From 07d61ba2a1c0e06e914443225e194d99f2d8c58d Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto
Date: Fri, 1 Sep 2017 19:10:18 +0900
Subject: [PATCH] ALSA: dummy: avoid stall due to a call of hrtimer_cancel() on
a callback of hrtimer
A call of 'htrimer_ca
On Fri, 01 Sep 2017 12:25:37 +0200,
Takashi Sakamoto wrote:
>
> Hi,
>
> On Sep 1 2017 00:36, Takashi Iwai wrote:
> > I gave it at try, but it caused a kernel hang, unfortunately.
> >
> > The reason is that snd_pcm_period_elapased() may stop the stream
> > (e.g. when reaching at the end). With t
Hi,
On Sep 1 2017 00:36, Takashi Iwai wrote:
> I gave it at try, but it caused a kernel hang, unfortunately.
>
> The reason is that snd_pcm_period_elapased() may stop the stream
> (e.g. when reaching at the end). With this patchset, it'll lead to
> the call of hrtimer_cancel() from the hrtimer c
On Thu, 31 Aug 2017 14:23:45 +0200,
Anna-Maria Gleixner wrote:
>
> From: Thomas Gleixner
>
> The tasklet is used to defer the execution of snd_pcm_period_elapsed() to
> the softirq context. Using the CLOCK_MONOTONIC_SOFT base invokes the timer
> callback in softirq context as well which renders
On Thu, 31 Aug 2017 16:21:17 +0200,
Takashi Sakamoto wrote:
>
> Hi,
>
> On Aug 31 2017 21:23, Anna-Maria Gleixner wrote:
> > From: Thomas Gleixner
> >
> > The tasklet is used to defer the execution of snd_pcm_period_elapsed() to
> > the softirq context. Using the CLOCK_MONOTONIC_SOFT base invok
Hi,
On Aug 31 2017 21:23, Anna-Maria Gleixner wrote:
> From: Thomas Gleixner
>
> The tasklet is used to defer the execution of snd_pcm_period_elapsed() to
> the softirq context. Using the CLOCK_MONOTONIC_SOFT base invokes the timer
> callback in softirq context as well which renders the tasklet
From: Thomas Gleixner
The tasklet is used to defer the execution of snd_pcm_period_elapsed() to
the softirq context. Using the CLOCK_MONOTONIC_SOFT base invokes the timer
callback in softirq context as well which renders the tasklet useless.
Signed-off-by: Thomas Gleixner
Signed-off-by: Anna-Ma
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