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Sender: Salvatore Bonaccorso <salvatore.bonaccorso@gmail.com>
Date:   Mon, 2 Jan 2023 11:43:36 +0100
From:   Salvatore Bonaccorso <carnil@debian.org>
To:     Thorsten Leemhuis <regressions@leemhuis.info>
Cc:     Richard Fitzgerald <rf@opensource.cirrus.com>,
        Sergey <zagagyka@basealt.ru>,
        Alsa-devel <alsa-devel@alsa-project.org>,
        LKML <linux-kernel@vger.kernel.org>,
        "regressions@lists.linux.dev" <regressions@lists.linux.dev>,
        Takashi Iwai <tiwai@suse.com>,
        Jaroslav Kysela <perex@perex.cz>,
        Mark Brown <broonie@kernel.org>,
        =?iso-8859-1?Q?P=C1LFFY_D=E1niel?= <dpalffy@gmail.com>
Subject: Re: [regression, 5.10.y] =?iso-8859-1?Q?Bu?=
 =?iso-8859-1?Q?g=A0216861_-_sound_disappearanc?= =?iso-8859-1?Q?e?= on Acer
 Swift 3 SF314-59-78UR after update to 5.10.157
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References: <bebd692d-7d21-6648-6b7a-c91063bb51c2@leemhuis.info>
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Hi,

[Adding as well Richard Fitzgerald and P?LFFY D?niel to recipients]

On Fri, Dec 30, 2022 at 09:08:57AM +0100, Thorsten Leemhuis wrote:
> Hi, this is your Linux kernel regression tracker speaking.
> 
> I noticed a regression report in bugzilla.kernel.org. As many (most?)
> kernel developer don't keep an eye on it, I decided to forward it by
> mail. Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=216861 :
> 
> >  Sergey 2022-12-29 10:07:51 UTC
> > 
> > Created attachment 303497 [details]
> > pulseaudio.log
> > 
> > Sudden sound disappearance was reported for some laptops, e.g.
> > 
> > Acer Swift 3 SF314-59-78UR 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
> > 
> > # lspci
> > 0000:00:1f.3 Multimedia audio controller: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller (rev 20)
> >         Subsystem: Acer Incorporated [ALI] Device 148c
> >         Flags: bus master, fast devsel, latency 32, IRQ 197, IOMMU group 12
> >         Memory at 601f270000 (64-bit, non-prefetchable) [size=16K]
> >         Memory at 601f000000 (64-bit, non-prefetchable) [size=1M]
> >         Capabilities: [50] Power Management version 3
> >         Capabilities: [80] Vendor Specific Information: Len=14 <?>
> >         Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
> >         Kernel driver in use: sof-audio-pci
> > 
> > I am attaching the pulseaudio and dmesg logs
> > 
> > This bug started reproducing after updating the kernel from 5.10.156 to 5.10.157
> > 
> > Bisection revealed the commit being reverted:
> > 
> > c34db0d6b88b1da95e7ab3353e674f4f574cccee is the first bad commit
> > commit c34db0d6b88b1da95e7ab3353e674f4f574cccee
> > Author: Richard Fitzgerald <rf@opensource.cirrus.com>
> > Date:   Fri Nov 4 13:22:13 2022 +0000
> > 
> >     ASoC: soc-pcm: Don't zero TDM masks in __soc_pcm_open()
> >     
> >     [ Upstream commit 39bd801d6908900e9ab0cdc2655150f95ddd4f1a ]
> >     
> >     The DAI tx_mask and rx_mask are set by snd_soc_dai_set_tdm_slot()
> >     and used by later code that depends on the TDM settings. So
> >     __soc_pcm_open() should not be obliterating those mask values.
> >     
> > [...]
> > Original bug report: https://bugzilla.altlinux.org/44690
> 
> See the ticket for more details.
> 
> BTW, let me use this mail to also add the report to the list of tracked
> regressions to ensure it's doesn't fall through the cracks:
> 
> #regzbot introduced: c34db0d6b88b1d
> https://bugzilla.kernel.org/show_bug.cgi?id=216861
> #regzbot title: sound: asoc: sudden sound disappearance
> #regzbot ignore-activity

FWIW, we had as well reports in Debian after having updated the kernel
from 5.10.149 based one to 5.10.158 based one in the last point
releases, they are at least:

https://bugs.debian.org/1027483
https://bugs.debian.org/1027430

Regards,
Salvatore