Re: wait_for_completion in mmc_wait_for_req_done never returns

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On Thu, May 1, 2014 at 9:57 AM, Konstantin Dorfman
<kdorfman@xxxxxxxxxxxxxx> wrote:
> On 03/01/14 18:03, Jon Ringle wrote:
>>
>> I'm porting an arm board from linux-3.10 to linux-3.12 and found that I
>> can no longer detect the SD card. I found that the
>> wait_for_completion(&mrq->completion) in
>> drivers/mmc/core/core.c:mmc_wait_for_req_done() is never returning.
>
>
> Can you post relevant kernel log file, so I'll try to understand the flow?
> What command is not getting completed? I suppose it is not data command.

This issue was caused by a bug in drivers/dma/edma.c and has already
been fixed in
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5fc68a6cad658e45dca3e0a6607df3a8e5df4ef9

Jon
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