[SRU][Bionic][PATCH 0/2] Fixes for LP:1777857

Thadeu Lima de Souza Cascardo cascardo at canonical.com
Mon Jul 16 14:24:29 UTC 2018


On Fri, Jun 22, 2018 at 12:22:39PM -0400, Joseph Salisbury wrote:
> == SRU Justification ==
> IBM is seeing kernel traces during testing.  This is due to a missing 
> backport of some kernel fixes in the RTC driver, which is commit
> 682e6b4da5cb.  Commit 682e6b4da5cb was also cc'd to upstream stable, but
> it has not landed in Bionic as of yet.  It is also a fix to upstream
> commit 628daa8d5abf.
> 
> Commit 34dd25de9fe3 is also needed as a prereq to define
> OPAL_BUSY_DELAY_MS.
> 
> == Fixes ==
> 34dd25de9fe3 ("powerpc/powernv: define a standard delay for OPAL_BUSY type retry loops")
> 682e6b4da5cb ("rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops")

I see these two patches already applied for LP#1773964. Is this bug a
duplicate?

Cascardo.

> 
> == Regression Potential ==
> Low.  Limited to powerpc.  Fixes a current regression.
> 
> == Test Case ==
> A test kernel was built with these patches and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.
> 
> Nicholas Piggin (2):
>   powerpc/powernv: define a standard delay for OPAL_BUSY type retry
>     loops
>   rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops
> 
>  arch/powerpc/include/asm/opal.h           |  3 +++
>  arch/powerpc/platforms/powernv/opal-rtc.c |  8 ++++---
>  drivers/rtc/rtc-opal.c                    | 37 +++++++++++++++++++------------
>  3 files changed, 31 insertions(+), 17 deletions(-)
> 
> -- 
> 2.7.4
> 
> 
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