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From: Samuel Thibault <samuel.thibault@eu.citrix.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown.
Date: Wed, 13 Aug 2008 14:46:08 +0100	[thread overview]
Message-ID: <20080813134608.GN6165@implementation.uk.xensource.com> (raw)
In-Reply-To: <20080813132358.17672.68212.stgit@gleb-debian.qumranet.com.qumranet.com>

Gleb Natapov, le Wed 13 Aug 2008 16:23:58 +0300, a écrit :
> If there is outstanding IDE IO when BIOS starts execution then IDE
> commands sent by BIOS will interfere with it and will leave IDE
> subsystem in unpredictable state. This can happen when system reboots
> unexpectedly without waiting for IO completion. Flushing IO before exit
> prevents data lose.

I'm wondering: isn't that what happens with real machines?

Samuel

  reply	other threads:[~2008-08-13 13:46 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-13 13:23 [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown Gleb Natapov
2008-08-13 13:46 ` Samuel Thibault [this message]
2008-08-13 13:59   ` Gleb Natapov
2008-08-13 14:06     ` Samuel Thibault
2008-08-13 14:25       ` Gleb Natapov
2008-08-13 14:29         ` Samuel Thibault
2008-08-13 14:40           ` Avi Kivity
2008-08-13 14:41           ` Gleb Natapov
2008-08-13 16:14             ` Samuel Thibault
2008-08-13 13:52 ` Anthony Liguori
2008-08-13 14:13   ` Gleb Natapov
2008-08-13 15:07     ` Anthony Liguori
2008-08-13 15:18       ` Avi Kivity
2008-08-13 15:47         ` Anthony Liguori
2008-08-13 16:36           ` Avi Kivity
2008-08-13 15:23       ` Gleb Natapov
2008-08-13 15:53         ` Anthony Liguori
2008-08-13 18:35           ` Gleb Natapov
2008-08-13 18:40             ` Avi Kivity
2008-08-13 18:53               ` Gleb Natapov
2008-08-13 19:04                 ` Anthony Liguori
2008-08-14 10:26                   ` Jamie Lokier
2008-08-13 19:03             ` Anthony Liguori
2008-08-13 22:32               ` Samuel Thibault

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