[PATCH] x86/mce: Keep quiet in case of broadcasted mce after system panic

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On 01/24/2017 at 08:22 PM, Borislav Petkov wrote:
> On Tue, Jan 24, 2017 at 09:27:45AM +0800, Xunlei Pang wrote:
>> It occurred on real hardware when testing crash dump.
>>
>> 1) SysRq-c was injected for the test in 1st kernel
>> [ 49.897279] SysRq : Trigger a crash 2) The 2nd kernel started for kdump
>>    [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.10.0-229.el7.x86_64 root=UUID=976a15c8-8cbe-44ad-bb91-23f9b18e8789
> Yeah, no, I'm not debugging the RH Frankenstein kernel.
>
> Please retrigger this with latest tip/master first.
>

The hardware machine check is hard to reproduce, but the mce code of RHEL7 is quite
the same as that of tip/master, anyway we are able to inject software mce to reproduce it.

It is also clear from the theoretical analysis of the code.

Regards,
Xunlei



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