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

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Date:	Wed, 13 Jul 2011 11:15:24 -0700
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Don Zickus <dzickus@...hat.com>, Matthew Garrett <mjg@...hat.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: pstore dump inside an nmi handler

> But perhaps, if we detect a spinlock is in use, we can bust it and reset
> the state machine to solve that problem?

The ERST table specifies a series of actions to perform to make
the records get saved to (or read from) the platform persistent
store. These actions will be dependent on the h/w, and also on
the creativity of the BIOS writer who composed the ERST action
table.

Resetting the state machine looks like it might be tricky from
any arbitrary point in the sequence.

-Tony
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