From: Thomas Gleixner <tglx@linutronix.de>
To: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: herbert@gondor.apana.org.au, mripard@kernel.org, wens@csie.org,
linux-arm-kernel@lists.infradead.org,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
Jens Axboe <axboe@kernel.dk>,
linux-mm@kvack.org, Andrew Morton <akpm@linuxfoundation.org>
Subject: Re: crypto: sun4i-ss: error with kmap
Date: Fri, 04 Dec 2020 16:08:27 +0100 [thread overview]
Message-ID: <874kl1bod0.fsf@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20201204132631.GA25321@Red>
On Fri, Dec 04 2020 at 14:26, Corentin Labbe wrote:
> On Fri, Dec 04, 2020 at 12:34:05AM +0100, Thomas Gleixner wrote:
>> The unmap comes from sg_miter_stop() and looking at the previous
>> map/unmap cycles there are never nested maps.
>>
>> [ 996.943030] cryptset-316 0d..4 73943317us : __kmap_local_pfn_prot: kmap_local_pfn: 1 ffefd000
>>
>> is the first event which allocates a nested map.
>>
>> So something goes south either in sg_miter or in the crypto maze.
>>
>> Enabling CONFIG_DEBUG_KMAP_LOCAL and function tracing might give us more clue.
>
> Done, http://kernel.montjoie.ovh/130466.log
Does not provide more information with the debug enabled. So can you
please enable CONFIG_FUNCTION_TRACER and add 'ftrace=function' to the
command line?
Thanks,
tglx
next prev parent reply other threads:[~2020-12-04 15:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20201201130102.GA23461@Red>
[not found] ` <87ft4phcyx.fsf@nanos.tec.linutronix.de>
[not found] ` <20201201135252.GA9584@Red>
[not found] ` <87y2ihfw6z.fsf@nanos.tec.linutronix.de>
[not found] ` <20201201144529.GA6786@Red>
[not found] ` <87v9dlfthf.fsf@nanos.tec.linutronix.de>
[not found] ` <20201202195501.GA29296@Red>
[not found] ` <877dpzexfr.fsf@nanos.tec.linutronix.de>
[not found] ` <20201203173846.GA16207@Red>
2020-12-03 23:34 ` crypto: sun4i-ss: error with kmap Thomas Gleixner
2020-12-04 13:26 ` Corentin Labbe
2020-12-04 15:08 ` Thomas Gleixner [this message]
2020-12-04 19:27 ` Corentin Labbe
2020-12-04 20:58 ` Thomas Gleixner
2020-12-05 18:43 ` Corentin Labbe
2020-12-05 19:48 ` Thomas Gleixner
2020-12-05 20:16 ` Julia Lawall
2020-12-06 21:40 ` Corentin Labbe
2020-12-07 0:15 ` Thomas Gleixner
2020-12-07 12:18 ` Corentin Labbe
2020-12-07 15:53 ` Thomas Gleixner
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