From: Robert Jarzmik <robert.jarzmik@free.fr>
To: Petr Cvek <petr.cvek@tul.cz>
Cc: vinod.koul@intel.com, Ulf Hansson <ulf.hansson@linaro.org>,
Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
dmaengine@vger.kernel.org
Subject: Re: [BUG] dmaengine: pxa_dma: + mmc: pxamci: race condition with DMA error on tx channel
Date: Tue, 14 Mar 2017 22:11:46 +0100 [thread overview]
Message-ID: <871stzh8bx.fsf@belgarion.home> (raw)
In-Reply-To: <feb39d00-d40d-f935-751c-8119f40b4df4@tul.cz> (Petr Cvek's message of "Fri, 10 Mar 2017 01:49:12 +0100")
Petr Cvek <petr.cvek@tul.cz> writes:
Ok Petr, I've been trying for days to reproduce without any luck.
I had a look at your traces, and I'd like something else when it happens :
1) The patch I provided earlier applied
2) This done (the 'cat' after the bug) :
mount -t debugfs none /sys/kernel/debug/
cat /sys/kernel/debug/pxa-dma.0/channels/4/[sd]*
Cheers.
--
Robert
next prev parent reply other threads:[~2017-03-14 21:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 6:57 [BUG] dmaengine: pxa_dma: + mmc: pxamci: race condition with DMA error on tx channel Petr Cvek
2017-03-08 16:43 ` Robert Jarzmik
2017-03-10 0:49 ` Petr Cvek
2017-03-14 21:11 ` Robert Jarzmik [this message]
2017-03-26 2:43 ` Petr Cvek
2017-04-06 6:42 ` Robert Jarzmik
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