Messages in this thread | | | Date | Mon, 23 Feb 2015 18:06:53 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH 1/2] x86: mce: kdump: use under_crashdumping to turn off MCE in all CPUs together |
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On Tue, Feb 24, 2015 at 12:41:11AM +0900, Naoya Horiguchi wrote: > What I saw was that once in hundreds of kdump and reboot cycle we hit > kdump failure and panic with "Timeout synchronizing machine check over > CPUs" message.
Ok, but this doesn't necessarily mean you're seeing an MCE.
Or perhaps your NMI shooting down is causing an MCE once in a hundred kdump cycles, i.e. I'm looking at nmi_shootdown_cpus().
Can you send me a dmesg from such a case where this happens? The more verbose, the better.
Thanks.
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply. --
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