Messages in this thread | | | Date | Fri, 28 Jun 2013 12:52:02 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: BUG: tick device NULL pointer during system initialization and shutdown |
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On Thu, 27 Jun 2013, Prarit Bhargava wrote: > On 06/26/2013 07:05 AM, Thomas Gleixner wrote: > > Subject: tick: Make oneshot broadcast robust vs. CPU offlining > > From: Thomas Gleixner <tglx@linutronix.de> > > Date: Wed, 26 Jun 2013 12:17:32 +0200 > > > > In periodic mode we remove offline cpus from the broadcast propagation > > mask. In oneshot mode we fail to do so. This was not a problem so far, > > but the recent changes to the broadcast propagation introduced a > > constellation which can result in a NULL pointer dereference. > > > > Unfortunately this patch causes an NMI watchdog during system shutdown. Most of > the CPUs are in start_secondary+0x254/0x256.
Huch. Did the warning in the broadcast code trigger before that?
Thanks,
tglx
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