于 2011年01月22日 14:57, Igor Serebryany 写道:
Actually, I only get the error when using cache='none' --
writethrough
and writeback both work, and default works also but the cache parameter
is gone from the driver element if I do a dumpxml.
Hi, Igor,
Could you check the disk cache support of your qemu?
[root@Osier libvirt]# qemu-kvm --help | grep cache
[,cache=writethrough|writeback|none|unsafe][,format=f]
And, also the qemu command line for your guest?
/var/log/libvirt/qemu/$guest.log
Regards
Osier
i also forgot to include versions:
cloud1:~# qemu --version
QEMU PC emulator version 0.12.5 (Debian 0.12.5+dfsg-3), Copyright (c) 2003-2008 Fabrice
Bellard
cloud1:~# virsh --version
0.8.6
--Igor
On Sat, Jan 22, 2011 at 12:49:55AM -0600, Igor Serebryany wrote:
> hi,
>
> i tried to add a 'cache' argument to the 'driver' element in my
> domainxml for qemu/kvm. i tried adding cache="none" as well as
> "writethrough" and "writeback", but every time i get these
errors:
>
> libvirtError: internal error process exited while connecting to monitor: char device
redirected to /dev/pts/1
> qemu: could not open disk image /vms/test.img: Invalid argument
>
> the full driver line looks like this:
> <driver name="qemu" type="raw" cache="none"/>
>
> the same domainxml works just fine without the cache parameter. does
> anyone know what i'm doing wrong? is there some other way to set the
> default cache policy on qemu/kvm? i didn't see anything in the
> config file...
>
>
> --igor
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