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
Arch linux has a fix for this in their tree, the fix looks good: http://projects.archlinux.org/?p=linux-2.6-ARCH.git;a=blob_plain;f=patches/wmi.patch;h=a8b98daaa08a28a06d84d745be8cf82644c490e4;hb=99578463d88de930611e6e1714ec748d8b2b3ef6
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.
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)
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
Handled-By : Costantino Leandro <lcostantino@gmail.com> Patch : http://patchwork.kernel.org/patch/29082/ Notify-Also : Carlos Corbacho <carlos@strangeworlds.co.uk>
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.