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Re: [Xen-devel] BSoD with GPLPV + tap:aio

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] BSoD with GPLPV + tap:aio
From: Paul Durrant <paul.durrant@xxxxxxxxxx>
Date: Mon, 9 Nov 2009 10:04:28 +0000
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James Harper wrote:
When I use my GPLPV drivers with tap:aio, I get a random BSoD after a
while, normally 0x0000000A.

Can anyone suggest what could be different with file|phy vs tap:aio that
might cause a problem? Is tap:aio otherwise known to be good?

I guess the main difference is likely to be blkback vs. blktap. Guessing from the minimal info., I'm guessing you're probably hitting a state model problem. Was there any significant PnP going on when you got the BSOD?


Paul Durrant, Software Engineer
Citrix Systems (R&D) Ltd.

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