[SRU][lts-vivid][PATCH 0/1] cpu: Defer smpboot kthread unparking until CPU known to scheduler

[Joseph Salisbury]

BugLink: http://bugs.launchpad.net/bugs/1570054

== SRU Justification ==
Launchpad bug was opened for an SRU request need for a private bug that
has embargoed information.

Upstream commit 00df35f991914db6b8bde8cf09808e19a9cffc3d fixes a bug in lts-vivid
that is causing guests on a public cloud to crash at random times.  Commit
00df35f99 was requested in upstream stable, but it has not come down via the 
normal stable udpates as of yet.  This SRU request is to get the fix into lts-vivid
while waiting for the commit to come in via stable updates.


== Fix ==
commit 00df35f991914db6b8bde8cf09808e19a9cffc3d
Author: Paul E. McKenney <paulmck at linux.vnet.ibm.com>
Date:   Sun Apr 12 08:06:55 2015 -0700

    cpu: Defer smpboot kthread unparking until CPU known to scheduler



== 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.




Paul E. McKenney (1):
  cpu: Defer smpboot kthread unparking until CPU known to scheduler

 include/linux/cpu.h |  2 ++
 init/main.c         |  1 +
 kernel/cpu.c        | 34 +++++++++++++++++++++++++++++++---
 3 files changed, 34 insertions(+), 3 deletions(-)

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2.7.4