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From: Chris Webb <chris@arachsys.com>
To: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
	Richard Davies <richard@arachsys.com>,
	Zhi Yong Wu <wuzhy@cn.ibm.com>,
	qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 0/2] ide: convert pio code path to asynchronous I/O
Date: Thu, 29 Mar 2012 12:30:42 +0100	[thread overview]
Message-ID: <20120329113041.GP5511@arachsys.com> (raw)
In-Reply-To: <1332949439-6781-1-git-send-email-stefanha@linux.vnet.ibm.com>

Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> writes:

> Chris and Richard: Please test this to confirm that it fixes the hang you
> reported.

We've been testing this (v1 against qemu-kvm 1.0) today, and it's looking
very good. Thanks!

The lock-ups during boot no longer happen, and if you severely throttle
(1MB/s, 100 req/s) a guest in the middle of a big dd, there are lots of
nasty kernel messages as it falls back to pio mode, but the guest doesn't
lock up and qemu remains responsive.

Best wishes,

Chris.

  parent reply	other threads:[~2012-03-29 11:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-28 15:43 [Qemu-devel] [PATCH 0/2] ide: convert pio code path to asynchronous I/O Stefan Hajnoczi
2012-03-28 15:43 ` [Qemu-devel] [PATCH 1/2] ide: convert ide_sector_read() " Stefan Hajnoczi
2012-03-29  6:42   ` Michael Tokarev
2012-03-29  8:29     ` Stefan Hajnoczi
2012-03-29  9:10       ` Paolo Bonzini
2012-03-29  6:46   ` Michael Tokarev
2012-03-29  7:00     ` Michael Tokarev
2012-03-28 15:43 ` [Qemu-devel] [PATCH 2/2] ide: convert ide_sector_write() " Stefan Hajnoczi
2012-03-28 15:51 ` [Qemu-devel] [PATCH 0/2] ide: convert pio code path " Chris Webb
2012-03-28 16:14 ` Paolo Bonzini
2012-03-29  2:15 ` Zhi Yong Wu
2012-03-29 11:30 ` Chris Webb [this message]
2012-03-29 13:36   ` Stefan Hajnoczi
2012-03-29 16:10     ` Chris Webb

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