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Re: [PREEMPT-RT] Oops in rapl_cpu_prepare()

From Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Newsgroups linux.kernel
Subject Re: [PREEMPT-RT] Oops in rapl_cpu_prepare()
Date 2016-11-02 18:30 +0100
Message-ID <sz7wl-Mi-27@gated-at.bofh.it> (permalink)
References <sxaoF-5Hs-3@gated-at.bofh.it> <syEE2-7uL-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2016-11-01 13:15:53 [+0300], M. Vefa Bicakci wrote:
> Hello Sebastian,
Hi,

> The patch fixes the kernel oops for me.
> 
> I am using a custom 4.8.5-based kernel on Qubes OS R3.2, which is based
> on Xen 4.6.3. Apparently, Xen also has a similar bug/flaw/quirk regarding
> the allocation of package identifiers for the virtual CPUs.
> 
> Prior to your patch, my Xen-based virtual machines would intermittently
> crash most of the time at boot-up with the backtrace reported by Charles.
> Due to this, I was under the impression that this is a subtle race
> condition.

how hard is it to get such a xen setup up and running?

Sebastian

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Re: [PREEMPT-RT] Oops in rapl_cpu_prepare() "Charles (Chas) Williams" <ciwillia@brocade.com> - 2016-10-27 21:10 +0200
  Re: [PREEMPT-RT] Oops in rapl_cpu_prepare() Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-10-28 10:10 +0200
    Re: [PREEMPT-RT] Oops in rapl_cpu_prepare() "M. Vefa Bicakci" <m.v.b@runbox.com> - 2016-11-01 11:40 +0100
      Re: [PREEMPT-RT] Oops in rapl_cpu_prepare() Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-11-02 18:30 +0100
        Re: [PREEMPT-RT] Oops in rapl_cpu_prepare() "M. Vefa Bicakci" <m.v.b@runbox.com> - 2016-11-03 19:30 +0100
    Re: [PREEMPT-RT] Oops in rapl_cpu_prepare() "Charles (Chas) Williams" <ciwillia@brocade.com> - 2016-11-02 10:40 +0100
      Re: [PREEMPT-RT] Oops in rapl_cpu_prepare() Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-11-02 11:00 +0100

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