From: Paolo Bonzini <pbonzini@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Stefan Hajnoczi <stefanha@gmail.com>,
qemu-devel <qemu-devel@nongnu.org>,
Erik Rull <erik.rull@rdsoftware.de>
Subject: Re: [Qemu-devel] Boot Problems Windows XP guest
Date: Wed, 28 Aug 2013 13:05:26 +0200 [thread overview]
Message-ID: <521DD976.1000608@redhat.com> (raw)
In-Reply-To: <CA+aC4ksSdbY3mzosXR7Z9Do1JrfY+mdkt9d99oqBqOi3Dk67_g@mail.gmail.com>
Il 27/08/2013 23:37, Anthony Liguori ha scritto:
> On Aug 27, 2013 4:32 PM, "Paolo Bonzini" <pbonzini@redhat.com
> <mailto:pbonzini@redhat.com>> wrote:
>>
>> Il 27/08/2013 22:26, Erik Rull ha scritto:
>> > Hi Stefan,
>> >
>> > which BIOS is selected by default?
>>
>> QEMU only ships with SeaBIOS.
>>
>> > It's more a guess, there must be a
>> > change between 1.2.0 and 1.6.0 that prevents a simple Windows XP from
>> > booting completely, if the guest HDD image is placed on a SSD. On a
>> > rotating HDD (with the same commandline except the path to the image) it
>> > boots successfully. The only difference is the speed of the disk access.
>>
>> It could be a real difference, actually. An unexpectedly fast disk
>> might screw a sloppy driver. IIRC you're not the first person reporting
>> it. Stefan, do you think using block throttling could fix it (with some
>> trial and error)?
>
> Add cache=writethrough and I bet it'll work even on an SSD.
You'll also kill the SSD rather quickly though. :)
Paolo
> We changed the default in that timeframe. The Windows IDE drivers can
> have an issue if the IRQ comes too quickly to indicate the request has
> completed. This is what -win2k-hack is for. That may also work here too.
next prev parent reply other threads:[~2013-08-28 11:06 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-26 9:52 [Qemu-devel] Boot Problems Windows XP guest Erik Rull
2013-08-27 7:38 ` Stefan Hajnoczi
2013-08-27 20:26 ` Erik Rull
2013-08-27 21:31 ` Paolo Bonzini
2013-08-27 21:37 ` Anthony Liguori
2013-08-28 8:05 ` Erik Rull
2013-08-28 11:05 ` Paolo Bonzini [this message]
2013-08-28 7:50 ` Stefan Hajnoczi
2013-08-28 9:07 ` Erik Rull
2013-08-28 13:14 ` Paolo Bonzini
2013-08-28 13:34 ` Benoît Canet
2013-08-28 13:41 ` Paolo Bonzini
2013-08-28 13:51 ` Benoît Canet
2013-08-28 13:59 ` Paolo Bonzini
2013-08-28 14:05 ` Benoît Canet
2013-08-28 14:05 ` Paolo Bonzini
2013-08-28 14:26 ` Benoît Canet
2013-08-28 18:21 ` Erik Rull
2013-08-28 18:40 ` Benoît Canet
2013-08-28 19:22 ` Erik Rull
2013-08-29 7:53 ` Erik Rull
2013-08-29 9:25 ` Benoît Canet
2013-08-29 14:51 ` Erik Rull
2013-08-29 14:55 ` Paolo Bonzini
2013-08-29 15:31 ` Erik Rull
2013-08-28 13:19 ` Stefan Hajnoczi
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