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SubjectRe: threshold_init_device/kobject_uevent_env oops

* Greg KH <gregkh@suse.de> wrote:

> On Fri, Jan 25, 2008 at 01:05:40PM -0800, Yinghai Lu wrote:
> > current linus tree + x86.git
> >
> > got
> >
> > Calling initcall 0xffffffff80b93d98: threshold_init_device+0x0/0x3f()
> > BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
> > IP: [<ffffffff80458e20>] kobject_uevent_env+0x2a/0x3d9
>
> Does this happen on just Linus's tree?
>
> Can you send me a .config file for this?
>
> What is threshold_init()? Is it something new in the x86.git tree?

no. A quick grep shows that it is in a file that _your_ changes in
Linus' latest have touched:

arch/x86/kernel/cpu/mcheck/mce_amd_64.c

via:

Author: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu Dec 20 08:13:05 2007 -0800

Kobject: convert arch/* from kobject_unregister() to kobject_put()
Author: Greg Kroah-Hartman <gregkh@suse.de>
Date: Wed Dec 19 09:23:20 2007 -0800

Kobject: change arch/x86/kernel/cpu/mcheck/mce_amd_64.c to use kobject_init_

commit a521cf209c6e7042f85b2c5b16da3ffa8004fb7b
Author: Greg Kroah-Hartman <gregkh@suse.de>
Date: Wed Dec 19 09:23:20 2007 -0800

Kobject: change arch/x86/kernel/cpu/mcheck/mce_amd_64.c to use kobject_creat

x86.git changed nothing to cause a crash in kobject_uevent_env(), and
nothing has changed anything near this code anyway.

We havent had a runtime (non-boot related) crash in x86.git for quite
some time. It's rock solid and dependable, and the only significant
change today were your upstream kobject commits.

Ingo


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