linux-kernel - Re: [PATCH -tip 3/3] x86, mce: Add mce=nopoll option to disable timer polling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <49D1C70D.3070509@jp.fujitsu.com>
Date:	Tue, 31 Mar 2009 16:32:29 +0900
From:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
To:	Andi Kleen <ak@...ux.intel.com>
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH -tip 3/3] x86, mce: Add mce=nopoll option to disable timer
 polling

Andi Kleen wrote:
>> How to prevent banks from clearing?
> 
> Firmware first typically means the firmware gets it one way or another
> using SMI and that tends to work even when the OS clears because
> SMI comes first. So stopping the clearing is probably not needed?

SMI is not only way for firmware.
IIRC, I heard there are some server doing poll from service processor on
BMC (Board Management Controller).
I could be wrong, but always there could be a special case.

Thanks,
H.Seto

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/