From: Avi Kivity <avi@redhat.com>
To: Andrew Holway <a.holway@syseleven.de>
Cc: kvm@vger.kernel.org
Subject: Re: NFSoRDMA not working with KVM when cache disabled
Date: Mon, 03 Sep 2012 12:58:46 +0300 [thread overview]
Message-ID: <50447F56.4030009@redhat.com> (raw)
In-Reply-To: <E9F58A23-6B33-48AF-9207-A8E2BA7F0D1E@syseleven.de>
On 08/31/2012 08:05 PM, Andrew Holway wrote:
> Hi,
>
> I am trying to host KVM machines on an NFSoRDMA mount.
>
> This works:
>
> -drive file=/mnt/vm001.img,if=none,id=drive-virtio-disk0,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0
>
> This Doesn't!
>
> -drive file=/mnt/vm001.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=2
>
> Any ideas why this could be?
Please try
dd bs=512 if=/mnt/vm001.img of=/mnt/x1
dd bs=512 if=/mnt/vm001.img of=/mnt/x2
dd bs=4096 if=/mnt/vm001.img of=/mnt/y1 iflag=direct oflag=direct
dd bs=4096 if=/mnt/vm001.img of=/mnt/y2 iflag=direct oflag=direct
and report which (if any) of the output files (x1, x2, y1, y2) are
corrupted, by comparing them against the original. This will tell us
whether O_DIRECT is broken, or 512 byte block size, or neither.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-09-03 9:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <RT-Ticket-2699@BrightComputing>
2012-08-31 17:05 ` NFSoRDMA not working with KVM when cache disabled Andrew Holway
2012-08-31 17:32 ` Andrew Holway
[not found] ` <rt-3.8.7-5952-1346432760-1448.2699-4-0@BrightComputing>
[not found] ` <CALiqupEThihQAj1mf43f2pNztXaFoxojYkTcrMbFkc1G=+vEAA@mail.gmail.com>
2012-08-31 21:20 ` [Bright Cluster Manager Support #2699] " Martijn de Vries
[not found] ` <056E76E7-5AAB-4622-A245-62725340D504@syseleven.de>
2012-09-01 11:51 ` Andrew Holway
[not found] ` <rt-3.8.7-5947-1346500280-1759.2699-16-0@BrightComputing>
[not found] ` <CALiqupEgJ2=2Mbg1trvQVEbgUProJj87dPzJOOG6XR2GwWZf5Q@mail.gmail.com>
2012-09-02 20:46 ` Martijn de Vries
[not found] ` <rt-3.8.7-19587-1346618782-561.2699-6-0@BrightComputing>
2012-09-03 13:21 ` Pawan Jaitly
2012-09-03 9:12 ` Stefan Hajnoczi
2012-09-03 9:58 ` Avi Kivity [this message]
2012-09-03 11:57 ` Andrew Holway
2012-09-03 12:08 ` Avi Kivity
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