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SubjectRe: LKFT: arm x15: mmc1: cache flush error -110
On Thu, 19 Mar 2020 at 20:12, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>
> FYI,
>
> The arm device x15 running stable rc 4.19.112-rc1, 5.4.27-rc1 and 5.5.11-rc2
> kernel pops up the following messages on console log,
> Is this a problem ?
>
> [ 0.000000] Linux version 4.19.112-rc1 (oe-user@oe-host) (gcc version
> 7.3.0 (GCC)) #1 SMP Thu Mar 19 12:55:45 UTC 2020
>
> [ 15.737765] mmc1: unspecified timeout for CMD6 - use generic
> [ 16.754248] mmc1: unspecified timeout for CMD6 - use generic
> [ 16.842071] mmc1: unspecified timeout for CMD6 - use generic
> ...
> [ 20.580541] mmc1: unspecified timeout for CMD6 - use generic
> [ 20.588216] mmc1: unspecified timeout for CMD6 - use generic
> [ 20.604011] mmc1: unspecified timeout for CMD6 - use generic
>
> ref:
> https://lkft.validation.linaro.org/scheduler/job/1298207#L4037
> https://lkft.validation.linaro.org/scheduler/job/1298945#L4132
> https://lkft.validation.linaro.org/scheduler/job/1299973#L4232

The commit below is the problem, it shouldn't be applied for stable.

commit 533a6cfe08f96a7b5c65e06d20916d552c11b256
Author: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed Jan 22 15:27:47 2020 +0100
mmc: core: Default to generic_cmd6_time as timeout in __mmc_switch()

Let me sort it out with Greg/Sasha. I will keep you in the loop,
thanks for reporting!

Kind regards
Uffe

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