From: Borislav Petkov <bp@amd64.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Tony Luck <tony.luck@intel.com>, X86-ML <x86@kernel.org>,
EDAC devel <linux-edac@vger.kernel.org>,
Borislav Petkov <borislav.petkov@amd.com>
Subject: [PATCH 0/2] x86, MCE: Catch the early worm
Date: Thu, 8 Dec 2011 15:08:50 +0100 [thread overview]
Message-ID: <1323353332-5671-1-git-send-email-bp@amd64.org> (raw)
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.
Thanks.
next reply other threads:[~2011-12-08 14:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-08 14:08 Borislav Petkov [this message]
2011-12-08 14:08 ` [PATCH 1/2] x86, mce: Add wrappers for registering on the decode chain Borislav Petkov
2011-12-08 14:08 ` [PATCH 2/2] x86, MCE: Drain mcelog buffer Borislav Petkov
2011-12-09 18:19 ` Luck, Tony
2011-12-09 18:24 ` Borislav Petkov
2011-12-09 18:40 ` Luck, Tony
2011-12-09 19:18 ` Borislav Petkov
2011-12-09 22:08 ` Luck, Tony
2011-12-12 14:19 ` Borislav Petkov
2011-12-09 6:16 ` [PATCH 0/2] x86, MCE: Catch the early worm Ingo Molnar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1323353332-5671-1-git-send-email-bp@amd64.org \
--to=bp@amd64.org \
--cc=borislav.petkov@amd.com \
--cc=linux-edac@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tony.luck@intel.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®