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Re: [GIT pull] smp/hotplug: Removal of notifiers

From Thomas Gleixner <tglx@linutronix.de>
Newsgroups linux.kernel
Subject Re: [GIT pull] smp/hotplug: Removal of notifiers
Date 2016-12-26 19:30 +0100
Message-ID <sSIc1-8d2-13@gated-at.bofh.it> (permalink)
References <sShlv-5PL-15@gated-at.bofh.it> <sSycF-1KC-3@gated-at.bofh.it> <sSBke-41U-19@gated-at.bofh.it> <sSFHc-6zH-5@gated-at.bofh.it> <sSHpD-7Hm-17@gated-at.bofh.it>
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On Mon, 26 Dec 2016, Boris Ostrovsky wrote:
> On 12/26/2016 10:45 AM, Markus Trippelsdorf wrote:
> > The comment in arch/x86/kernel/cpu/mcheck/mce_amd.c says:
> >
> > 1384  * mcheck_init_device should be inited before threshold_init_device to
> > 1385  * initialize mce_device, otherwise a NULL ptr dereference will cause panic.

That's not changed by this commit.

> My nightly test hit this as well. AMD only, Intel passed. I haven't
> verified whether commit that Markus implicated is the one that caused
> this but it's the same BUG signature (but possibly slightly different stack)
> 
> [    1.554351] smpboot: CPU0: AMD Engineering Sample (family: 0x10,
> model: 0x4, stepping: 0x1)
> ...

Is there anything interesting error message before the BUG hits? I'll try
to reproduce on a AMD box tomorrow.

Thanks,

	tglx

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Thread

Re: [GIT pull] smp/hotplug: Removal of notifiers Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-12-26 08:50 +0100
  Re: [GIT pull] smp/hotplug: Removal of notifiers Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-12-26 12:10 +0100
    Re: [GIT pull] smp/hotplug: Removal of notifiers Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-12-26 16:50 +0100
      Re: [GIT pull] smp/hotplug: Removal of notifiers Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-12-26 18:40 +0100
        Re: [GIT pull] smp/hotplug: Removal of notifiers Thomas Gleixner <tglx@linutronix.de> - 2016-12-26 19:30 +0100
          Re: [GIT pull] smp/hotplug: Removal of notifiers Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-12-26 22:00 +0100
          Re: [GIT pull] smp/hotplug: Removal of notifiers Borislav Petkov <bp@alien8.de> - 2016-12-26 22:10 +0100
            Re: [GIT pull] smp/hotplug: Removal of notifiers Thomas Gleixner <tglx@linutronix.de> - 2016-12-26 22:20 +0100
              Re: [GIT pull] smp/hotplug: Removal of notifiers Thomas Gleixner <tglx@linutronix.de> - 2016-12-26 22:50 +0100

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