linux-kernel - Re: [PATCH] Disable Bus Master on PCI device shutdown

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Message-ID: <20120607181305.2c444be6@pyramind.ukuu.org.uk>
Date:	Thu, 7 Jun 2012 18:13:05 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Matthew Garrett <mjg@...hat.com>, Khalid Aziz <khalid.aziz@...com>,
	linux-kernel@...r.kernel.org, bhelgaas@...gle.com,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH] Disable Bus Master on PCI device shutdown

> But it also makes my system do kexec successfully for the first time.
> 
> Maybe can make it an option.

More useful might be to report which devices have the bus master bit left
on at the time you tried the kexec, then we might actually find the bug.

Alan
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