[BUG] dmaengine: pxa_dma: + mmc: pxamci: race condition with DMA error on tx channel

Robert Jarzmik robert.jarzmik at free.fr
Tue Mar 14 14:11:46 PDT 2017


Petr Cvek <petr.cvek at 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



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