Bug 41982 - Resume from hibernation sometimes fails unless "Use mwait to offline a processor" patch backed out
Summary: Resume from hibernation sometimes fails unless "Use mwait to offline a proces...
Status: RESOLVED CODE_FIX
Alias: None
Product: Platform Specific/Hardware
Classification: Unclassified
Component: i386 (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: platform_i386
URL:
Keywords:
Depends on:
Blocks: 7216
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Reported: 2011-08-29 20:53 UTC by Jonathan Nieder
Modified: 2011-09-01 20:54 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.32.45, 2.6.33.18
Subsystem:
Regression: Yes
Bisected commit-id:

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Description Jonathan Nieder 2011-08-29 20:53:43 UTC 
Subject    : Resume from hibernation sometimes fails
Submitter  : Frédéric Boiteux <fboiteux@calistel.com>
Submitter  : Robert Scott <bugs@humanleg.org.uk>
Date       : 2011-04-11 15:06:06
Message-ID : 20110411110859.6670.40263.reportbug@localhost.localdomain
Reference  : http://thread.gmane.org/gmane.linux.kernel.stable/6341/focus=16950
First-Bad-Commit : 226917b0735f31cf5c704e07fdd590d99bbfae58
First-Bad-Commit : 74a6e0fd8fc216cfa5edcde4bd356a8972cbc74c

This entry is being used for tracking a regression in the 2.6.32.y and 2.6.33.y
longterm trees. Please don't close it until the problem is fixed there.

The triggering commit was intended to improve power consumption: see bug 5471.
2.6.39.y, which includes the same change, works fine.
Comment 1 Greg Kroah-Hartman 2011-08-31 21:40:02 UTC 
This fix will be reverted in the next .32 and .33 releases.
Comment 2 Jonathan Nieder 2011-09-01 20:54:32 UTC 
Thanks, Greg!  Work still continues to find what upstream fix is needed to get bug 5471 fixed in those trees again (being tracked at http://bugs.debian.org/622259 at the moment).
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