linux-kernel - Re: [PATCH] ASoC: samsung: Prevent clk_get

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Message-id: <21b8ccd7-e379-b4aa-3257-c9644ce3664c@samsung.com>
Date:   Thu, 07 Feb 2019 15:47:14 +0100
From:   Sylwester Nawrocki <s.nawrocki@...sung.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     lgirdwood@...il.com, krzk@...nel.org, sbkim73@...sung.com,
        m.szyprowski@...sung.com, b.zolnierkie@...sung.com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH] ASoC: samsung: Prevent clk_get_rate() calls in atomic
 context

On 2/7/19 15:32, Mark Brown wrote:
> On Thu, Feb 07, 2019 at 03:20:41PM +0100, Sylwester Nawrocki wrote:
> 
>> [   82.109780] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908
>> [   82.117009] in_atomic(): 1, irqs_disabled(): 128, pid: 1554, name: speaker-test
>> [   82.124235] 3 locks held by speaker-test/1554:
>> [   82.128653]  #0: cc8c5328 (snd_pcm_link_rwlock){...-}, at: snd_pcm_stream_lock_irq+0x20/0x38

> Please think hard before including complete backtraces in upstream
> reports, they are very large and contain almost no useful information
> relative to their size so often obscure the relevant content in your
> message. If part of the backtrace is usefully illustrative then it's
> usually better to pull out the relevant sections.

OK, let me trim the backtrace some more and resend.