Bug 14260

Summary: T400 suspend/resume regression
Product: Power Management Reporter: Rafael J. Wysocki (rjw)
Component: Hibernation/SuspendAssignee: power-management_other
Status: CLOSED CODE_FIX    
Severity: normal CC: john.stultz, tytso
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.32-rc1 Tree: Mainline
Regression: Yes
Bug Depends on:    
Bug Blocks: 7216, 14230    

Description Rafael J. Wysocki 2009-09-29 22:12:01 UTC
Subject    : T400 suspend/resume regression -- bisected to a mystery merge commit
Submitter  : Theodore Tso <tytso@mit.edu>
Date       : 2009-09-26 6:57
References : http://marc.info/?l=linux-kernel&m=125394827806011&w=4
Handled-By : "Rafael J. Wysocki" <rjw@sisk.pl>

This entry is being used for tracking a regression from 2.6.31.  Please don't
close it until the problem is fixed in the mainline.
Comment 1 Theodore Tso 2009-10-03 22:40:22 UTC
The problem has gone away in the latest release.  Linus posited that commit ID 89133f935 might fix the problem, and while I haven't tested to make sure that it is indeed the commit that made the problem go away, a kernel built using 2.6.32-rc1-git4 is no longer exhibiting the problem, and it was drop-dead easy to reproduce before.

Linus seems to be a little dubious about original bisected commit (75c5158f) and whether it should be reverted entirely, but for now, the problem seems to be fixed.
Comment 2 Rafael J. Wysocki 2009-10-03 22:55:12 UTC
Thanks for the update, closing.