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SubjectRe: edac slab corruption.
On Tue, Mar 07, 2006 at 08:53:02AM -0800, Dave Peterson wrote:
> On Saturday 04 March 2006 23:43, Dave Jones wrote:
> > rmmod e752x_edac edac_mc
> > Wait a few seconds...
> >
> > EDAC MC0: Removed device 0 for "e752x_edac" E7525: PCI 0000:00:00.0
> > Slab corruption: start=ffff81003fc5a000, len=4096
> >
> > Call Trace: <ffffffff8017bcab>{check_poison_obj+121}
> > <ffffffff802028a8>{kobject_uevent+676}
> > <ffffffff8017be34>{cache_alloc_debugcheck_after+48}
> > <ffffffff802028a8>{kobject_uevent+676}
> > <ffffffff8017dd52>{__kmalloc_track_caller+301}
> > <ffffffff802db731>{__alloc_skb+97} <ffffffff80202701>{kobject_uevent+253}
> > <ffffffff802028a8>{kobject_uevent+676}
> > <ffffffff80201fd6>{kobject_unregister+14}
> > <ffffffff8026f273>{bus_remove_driver+126}
> > <ffffffff8027004a>{driver_unregister+9}
> > <ffffffff8020f4a8>{pci_unregister_driver+16}
> > <ffffffff8014ec37>{sys_delete_module+551}
> > <ffffffff8010dbdc>{syscall_trace_enter+156}
> > <ffffffff8010a91c>{tracesys+209} 0f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6a 6b 6b 6b
> >
> > Dave
>
> Can this behavior be reproduced relatively easily?

yep.

> One thing that
> may be worth checking is whether this reproduces with a
> 2.6.16-rc5-mm2 kernel. Some EDAC bug fixes were added to that kernel

I've got zero time to jump on this right now -- trying to get FC5 shippable :-/
I'll try and get back to it at some point.

Dave

--
http://www.codemonkey.org.uk
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