linux-kernel - RE: pstore dump inside an nmi handler

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Message-ID: <987664A83D2D224EAE907B061CE93D5301E981ABAF@orsmsx505.amr.corp.intel.com>
Date:	Fri, 8 Jul 2011 15:10:26 -0700
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Matthew Garrett <mjg@...hat.com>
CC:	Don Zickus <dzickus@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: pstore dump inside an nmi handler

> EFI can't sleep (at least, not as far as the kernel's concerned), so 
> we're safe there. I think it's fair to assume atomicity here - crash 
> dumping is a pretty specific situation. Although we may need to think 
> about whether pstore should be saving reboot and poweroff in that case.

Hitachi engineers were very vocal about wanting the reboot/poweroff
logs (so they could deal with customers who accidentally rebooted the
wrong machine, and then denied doing so while also logging reports
that the victim machine had spontaneously reset).

-Tony
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