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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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