[SRU][Bionic][PATCH 0/1] powerpc/mce: Fix a bug where mce loops on memory UE.

[Joseph Salisbury]

BugLink: http://bugs.launchpad.net/bugs/1774964

== SRU Justification ==
IBM reports seeing the following during their testing:
WARNING: CPU: 97 PID: 11965 at /build/linux-0zaMZw/linux-4.15.0/kernel/sched/core.c:1189 set_task_cpu+0x240/0x250

This is a regression and was introduced by the following two commits in
v4.15-rc1:
01eaac2b0591 ("powerpc/mce: Hookup ierror (instruction) UE errors")
ba41e1e1ccb9 ("powerpc/mce: Hookup derror (load/store) UE errors")

This regression is fixed by commit 75ecfb49516c in v4.17-rc3.  The
commit was also cc'd to upstream stable, but it is being SRU'd to get
the fix into Ubuntu without waiting for it to come down via stable
updates.
 

== Fix ==
75ecfb49516c ("powerpc/mce: Fix a bug where mce loops on memory UE.")

== Regression Potential ==
Low.  Limited to powerpc.  The commit was also cc'd to upstream stable
so it will recieve additional upstream stable review.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.

Mahesh Salgaonkar (1):
  powerpc/mce: Fix a bug where mce loops on memory UE.

 arch/powerpc/kernel/mce_power.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

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2.7.4