Bug 43352

Summary:	After some rounds working on the laptop, then suspend and AFTER resume, linux crashed with kernel-panic when I plugin AC/DC (Power)
Product:	Power Management	Reporter:	Marc Schütz (schuetz.marc)
Component:	Hibernation/Suspend	Assignee:	power-management_other
Status:	CLOSED PATCH_ALREADY_AVAILABLE
Severity:	high	CC:	lenb, rui.zhang
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.2+	Subsystem:
Regression:	Yes	Bisected commit-id:

Description Marc Schütz 2012-06-07 19:31:34 UTC

Overview:
After some rounds working on the laptop, then suspend and AFTER resume, linux crashed with kernel-panic when I plugin AC/DC (Power). But I checked this many many many times.
If the time after going to suspend and resume is short (less than 2-4 hours I think) I´m not able to reproduce this bug. 
But if I go to work, coming home and then resume my laptop from suspend-to-ram!! 
login and then plugin AC/DC (Power) I get this bug almost every day.


Actual Results: KernelPanic/Crash

Expected Results: I got this bug first on Kernel 3.2 (since upgrade to Ubuntu 12.04)
But after many checks it seems not to be a problem only on ubuntu, also the 3.4 mainline kernel is affected.


Then tested with 3.4(final) and I got it also. 
You can also check
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/999653

Build Date & Platform: Date and platform of the build in which you first encountered the bug.
install-date: 24 november 2008

Additional Builds and Platforms: Doesn't Occur On kernel  3.0 and before

Additional Information: pls see the screenshot of the kernelpanoc/oops in attachement or for more information the bugreport on ubuntu/launchpad

Comment 1 Marc Schütz 2012-06-07 19:32:50 UTC

sorry. attach my screenshots of the panic failed.
pls see the screenshots in the launchpad-bug 

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/999653

Comment 2 Len Brown 2012-06-12 02:59:59 UTC

when you boot the system into metest86+,
does it run overnight?

Comment 3 Marc Schütz 2012-06-13 14:51:00 UTC

I can't believe that this is an memory related issue, but know after
2 hours:
Passed 100% no errors
Test #8

...
will try again a whole night if possible

Comment 4 Zhang Rui 2012-11-28 13:37:21 UTC

hi, marc,
any updates on this?

Comment 5 Marc Schütz 2012-11-28 18:48:30 UTC

HI,

SORRY. can be closed.
There was no hardwareerror with my notebook. seems that this is fixed upstream.
I'm using proposed and so the newest kernel from 3.2.x
at the moment
3.2.0-34-generic  #53-Ubuntu

and minimum since 3.2.0-32-generic
this bug never appears for me.

cheers
Marc