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Re: [Qemu-devel] IO errors in guest caused by LTP dio test
From: |
Andi Kleen |
Subject: |
Re: [Qemu-devel] IO errors in guest caused by LTP dio test |
Date: |
Mon, 27 Jun 2011 18:08:06 +0200 |
User-agent: |
Mutt/1.4.2.2i |
On Mon, Jun 27, 2011 at 05:59:41PM +0200, Kevin Wolf wrote:
> Am 23.06.2011 01:36, schrieb Andi Kleen:
> >
> > Running LTP testcases/kernel/io/direct_io/test_dma_thread_diotest7
> > causes IO errors in the guest. There are no IO errors on the host.
> >
> > Kernel Linux 3.0.0-rc*
> > Using a standard emulated IDE -hda image.
>
> Couldn't reproduce this in a quick test with a random guest I had
> available. What is your complete qemu command line? Is the problem new
-m 1500M -smp 2 \
-hda ~/qemu/suse-11.1-64.img \
-kernel arch/x86/boot/bzImage -append "root=/dev/sda1 debug $EXTRA" "$@"
Could it be related to the image?
suse11.3-64.img: Qemu Image, Format: Qcow , Version: 1 , Disk Size could be:
83886080 * 256 bytes
> with the 3.0 RCs or does it also happen with kernels that my existing
> guests are likely to have in use - say, the F15 kernel?
It happened on older kernels too.
>
> I guess with virtio-blk you don't see the problems?
Will try later.
-Andi
--
address@hidden -- Speaking for myself only.