Bug 13514 - acer_wmi causes stack corruption
Summary: acer_wmi causes stack corruption
Status: CLOSED PATCH_ALREADY_AVAILABLE
Alias: None
Product: ACPI
Classification: Unclassified
Component: Other (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: acpi_other
URL:
Keywords:
Depends on:
Blocks: 13070
  Show dependency tree
 
Reported: 2009-06-12 08:13 UTC by Rus
Modified: 2009-08-27 17:35 UTC (History)
5 users (show)

See Also:
Kernel Version: 2.6.30
Tree: Mainline
Regression: Yes


Attachments

Description Rus 2009-06-12 08:13:45 UTC
Hi,

If someone enable stack protector and modprobe acer_wmi the oops/panic occured

CONFIG_CC_STACKPROTECTOR_ALL=y
CONFIG_CC_STACKPROTECTOR=y

I do not have serial console, so can't capture oops, but it 100% reproducable.

TIA
Comment 2 Carlos Corbacho 2009-06-18 21:53:41 UTC
This patch was submitted to the ACPI mailing list last week & acked by me. I'm still waiting for Len to pull it.

http://patchwork.kernel.org/patch/29082/

I've pinged Len again to apply it.
Comment 3 Rafael J. Wysocki 2009-07-30 19:14:29 UTC
On Thursday 30 July 2009, Harbour wrote:
> On Sun, 26 Jul 2009, Rafael J. Wysocki wrote:
> 
> Still present at 2.6.30.3
> 
> :This message has been generated automatically as a part of a report
> :of regressions introduced between 2.6.29 and 2.6.30.
> :
> :The following bug entry is on the current list of known regressions
> :introduced between 2.6.29 and 2.6.30.  Please verify if it still should
> :be listed and let me know (either way).
> :
> :
> :Bug-Entry    : http://bugzilla.kernel.org/show_bug.cgi?id=13514
> :Subject              : acer_wmi causes stack corruption
> :Submitter    : Rus <harbour@sfinx.od.ua>
> :Date         : 2009-06-12 08:13 (45 days old)
Comment 4 Rafael J. Wysocki 2009-08-03 14:29:58 UTC
On Monday 03 August 2009, Harbour wrote:
> On Sun, 2 Aug 2009, Rafael J. Wysocki wrote:
> 
> :Bug-Entry    : http://bugzilla.kernel.org/show_bug.cgi?id=13514
> :Subject              : acer_wmi causes stack corruption
> :Submitter    : Rus <harbour@sfinx.od.ua>
> :Date         : 2009-06-12 08:13 (52 days old)
> 
> Still present in 2.6.30.4
Comment 5 Rafael J. Wysocki 2009-08-26 20:07:51 UTC
Handled-By : Costantino Leandro <lcostantino@gmail.com>
Patch : http://patchwork.kernel.org/patch/29082/
Notify-Also : Carlos Corbacho <carlos@strangeworlds.co.uk>
Comment 6 Len Brown 2009-08-27 17:35:46 UTC
commit f3d83e2415445e5b157bef404d38674e9e8de169
Author: Costantino Leandro <lcostantino@gmail.com>
Date:   Wed Aug 26 14:29:28 2009 -0700

    wmi: fix kernel panic when stack protection enabled.

shipped in linux-2.6.31-rc7-git5

closed.

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