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Re: [Xen-devel] Windows Bug Check 0x101 issue

To: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Windows Bug Check 0x101 issue
From: Kouya Shimura <kouya@xxxxxxxxxxxxxx>
Date: Fri, 28 Mar 2008 12:09:06 +0900
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>, Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
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Ian Jackson writes:
> Before we apply this: Kouya Shimra, could you test it and let us know
> if it solves your original problem ?

Many thanks. It works fine for me. 

BSOD of Bug Check 0x101 can be reproduced by running iozone benchmark
on dom0. I've tried 10 times and never seen the BSOD with this patch.
The BSOD was sure to happen everytime before.

Moreover, I tried the case of aio_fsync failure by using a debugger.
After the manually injection of failure (force to set "ret=1"), 
I got a BSOD of STOP 0x000000F4 what we probably expect.

In addition to prevent Windows from the BSOD, this patch improves the
interactivity of Windows remarkably.  Without this patch, I/O load of
dom0 affects the response of a guest Windows. 
(The mouse pointer stucks sometimes)

Thanks,
Kouya

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