From: "Leonardo E. Reiter" <lreiter@win4lin.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] -win2k-hack performance+DMA support
Date: Thu, 09 Feb 2006 13:35:48 -0600 [thread overview]
Message-ID: <43EB9994.6080105@win4lin.com> (raw)
In-Reply-To: <43EB4BC9.3030002@wasp.net.au>
No problem... hopefully Fabrice will apply this patch to CVS soon.
We've been testing/deploying this mechanism (every 16th interrupt) with
Win4Lin Pro for a long time now with no disk full problems, so I can
vouch that it's reliable (and quite fast compared to delaying on *every*
interrupt). As for the DMA reintroducing the problem, that's
understandable since Fabrice didn't originally implement the
win2k_install_hack check for the DMA callback in hw/ide.c. It was a
moot point since DMA didn't work with Windows 2000 anyway in QEMU CVS
until very recently, but since it does now, it will cause problems
unless it handles -win2k-hack as well.
- Leo Reiter
Brad Campbell wrote:
> Using todays CVS, and kqemu in user mode only I tried to install
> Win2k-SP4 25 times all with disk full errors until I applied this patch.
> It would appear the installer will use DMA mode if it's available and
> therefore the existing win2k-hack does not work.
>
> Using this patch 5 out of 5 installs worked perfectly.
>
> Thanks Leo :)
>
> Regards,
> Brad
--
Leonardo E. Reiter
Vice President of Product Development, CTO
Win4Lin, Inc.
Virtual Computing from Desktop to Data Center
Main: +1 512 339 7979
Fax: +1 512 532 6501
http://www.win4lin.com
next prev parent reply other threads:[~2006-02-09 19:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-02 18:38 [Qemu-devel] [PATCH] -win2k-hack performance+DMA support Leonardo E. Reiter
2006-02-09 14:03 ` Brad Campbell
2006-02-09 19:35 ` Leonardo E. Reiter [this message]
2006-04-20 0:32 ` Troy Benjegerdes
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