lkml.org 
[lkml]   [2011]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/2] x86, MCE: Catch the early worm

* Borislav Petkov <bp@amd64.org> wrote:

> From: Borislav Petkov <borislav.petkov@amd.com>
>
> Currently, we don't decode MCEs which are being detected during MCA
> initialization and before registration of the decoders on the decoding
> notifier chain. These two patches add the functionality to drain the
> mcelog buffer right after we've registered a decoder.
>
> With it, early MCEs get caught and decoded into the dmesg:
>
> ...
> [ 0.068003] ... generic registers: 6
> [ 0.068003] ... value mask: 0000ffffffffffff
> [ 0.068003] ... max period: 00007fffffffffff
> [ 0.068003] ... fixed-purpose events: 0
> [ 0.068003] ... event mask: 000000000000003f
> [ 0.068003] MCE: In-kernel MCE decoding enabled.
> [ 0.068003] [Hardware Error]: CPU:0 MC0_STATUS[-|UE|MiscV|-|AddrV|-|-]: 0xac80000000000833
> [ 0.068003] [Hardware Error]: MC0_ADDR: 0x00000000f8080000
> [ 0.068003] [Hardware Error]: Data Cache Error: System Read Data Error.
> [ 0.068003] [Hardware Error]: cache level: L3/GEN, mem/io: MEM, mem-tx: DRD, part-proc: SRC (no timeout)
> [ 0.068069] Booting Node 0, Processors #1
> [ 0.068276] smpboot cpu 1: start_ip = 88000
> [ 0.160077] #2
> [ 0.160206] smpboot cpu 2: start_ip = 88000
> [ 0.252073] #3 Ok.
> ...
>
> Comments and suggestions are welcome, as always.

Looks good to me.

Thanks,

Ingo


\
 
 \ /
  Last update: 2011-12-09 07:21    [W:0.138 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site