[Bug 1735159] Re: powerpc/powernv: Flush console before platform error reboot

** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin1710

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https://bugs.launchpad.net/bugs/1735159

Title:
powerpc/powernv: Flush console before platform error reboot

Status in The Ubuntu-power-systems project:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Zesty:
Won't Fix
Status in linux source package in Artful:
Fix Released

Bug description:
== SRU Justification ==
IBM unrecovered MCE and HMI errors are sent through a special restart OPAL
call to log the platform error. The downside is that they don't go
through normal Linux crash paths, so they don't give much information
to the Linux console.

IBM is requesting to have the commit b746e3e01e70d23ef53dcde1203ab78a1b7ac514
in the Zesty kernel.

Commit b746e3e01e70d2 is in mainline as of 4.14-rc1.

Breno Leitao from IBM did a backport of this commit.

== Fix ==
commit b746e3e01e70d23ef53dcde1203ab78a1b7ac514
Author: Nicholas Piggin <npiggin@gmail.com>
Date: Wed Jul 19 16:59:10 2017 +1000

powerpc/powernv: Flush console before platform error reboot

== Regression Potential ==
This patch is specific to powerpc, and it has been backported, reviewed and
tested by IBM.

== 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.

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