From: Borislav Petkov <bp@amd64.org>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Huang, Ying" <ying.huang@intel.com>,
Andi Kleen <andi@firstfloor.org>, Borislav Petkov <bp@alien8.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Mauro Carvalho Chehab <mchehab@redhat.com>
Subject: Re: [RFC 0/9] mce recovery for Sandy Bridge server
Date: Tue, 24 May 2011 19:33:26 +0200 [thread overview]
Message-ID: <20110524173326.GA7635@gere.osrc.amd.com> (raw)
In-Reply-To: <987664A83D2D224EAE907B061CE93D5301D5D0595B@orsmsx505.amr.corp.intel.com>
On Tue, May 24, 2011 at 09:57:46AM -0700, Luck, Tony wrote:
> So can we talk about this part for a while before returning to the
> "how to report this" discussion?
>
> So here's the situation - we are in the NMI handler when we find from
> looking at the machine check bank registers that we have a recoverable
> error. We know the physical address, and we know the task (which might
> have been in user or kernel context). I can package that information
> into a perf/event ... but then how can I mark the current task as
> not-fit-for-execution?
Maybe something like
set_current_state(TASK_UNINTERRUPTIBLE);
finish work in NMI context
do remaining work in process context like sending appropriate signals
etc; finally:
set_task_state(tsk, TASK_RUNNING)
?
--
Regards/Gruss,
Boris.
Advanced Micro Devices GmbH
Einsteinring 24, 85609 Dornach
General Managers: Alberto Bozzo, Andrew Bowd
Registration: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
next prev parent reply other threads:[~2011-05-24 17:33 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-23 21:54 [RFC 0/9] mce recovery for Sandy Bridge server Luck, Tony
2011-05-23 22:02 ` [RFC 1/9] mce: fixes for mce severity table Luck, Tony
2011-05-23 22:12 ` [RFC 2/9] mce: save most severe error information Luck, Tony
2011-05-23 22:13 ` [RFC 3/9] MCE: Always retrieve mce rip before calling no_way_out Luck, Tony
2011-05-23 22:13 ` [RFC 4/9] MCE: Move ADDR/MISC reading code into common function Luck, Tony
2011-05-23 22:13 ` [RFC 5/9] MCE: Mask out address mask bits below address granuality Luck, Tony
2011-05-23 22:14 ` [RFC 6/9] HWPOISON: Handle hwpoison in current process Luck, Tony
2011-05-23 22:14 ` [RFC 7/9] MCE: Pass registers to work handlers Luck, Tony
2011-05-23 22:14 ` [RFC 8/9] mce: run through processors with more severe problems first Luck, Tony
2011-05-23 22:15 ` [RFC 9/9] MCE: Add Action-Required support Luck, Tony
2011-05-24 3:40 ` [RFC 0/9] mce recovery for Sandy Bridge server Ingo Molnar
2011-05-24 8:14 ` Borislav Petkov
2011-05-24 16:57 ` Luck, Tony
2011-05-24 17:33 ` Borislav Petkov [this message]
2011-05-24 17:56 ` Tony Luck
2011-05-24 21:04 ` Borislav Petkov
2011-05-24 21:24 ` Peter Zijlstra
2011-05-24 21:30 ` Linus Torvalds
2011-05-24 21:37 ` Peter Zijlstra
2011-05-24 21:41 ` Ingo Molnar
2011-05-24 21:48 ` Tony Luck
2011-05-25 10:02 ` Joerg Roedel
2011-05-25 13:44 ` Ingo Molnar
2011-05-25 21:43 ` Tony Luck
2011-05-25 21:47 ` Ingo Molnar
2011-05-25 23:53 ` Tony Luck
2011-05-26 20:16 ` Tony Luck
2011-05-25 6:03 ` Hidetoshi Seto
2011-05-25 16:44 ` Luck, Tony
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