From: Thomas Fjellstrom <tfjellstrom@shaw.ca>
To: kvm@vger.kernel.org
Subject: Re: FreeBSD guest hogs cpu after disk delay?
Date: Sun, 3 Jan 2010 01:43:52 -0700 [thread overview]
Message-ID: <201001030143.52244.tfjellstrom@shaw.ca> (raw)
In-Reply-To: <201001030131.46953.tfjellstrom@shaw.ca>
On Sun January 3 2010, Thomas Fjellstrom wrote:
> I have a strange issue, one of my free bsd guests started using up 100%
> cpu and wouldnt respond in the console after a md-raid check started on
> the raid1 volume the vm has its lvm volumes on. About the only thing I
> could do was force the vm off, and restart it. In the guests console
> there was some kind of DMA warning/error related to the guest's disk
> saying it would retry, but it seems it never got that far.
>
I forgot to mention, the host is running debian sid with kernel 2.6.31-1-
amd64, and kvm --version reports:
QEMU PC emulator version 0.10.50 (qemu-kvm-devel-88)
the hosts / and the vm volumes all sit on a lvm volume group, ontop of a md-
raid1 mirror of two Seagate 7200.12 500GB SATAII drives.
The host is running 7 other guest which all seem to be running smoothly,
except both freebsd (pfSense) based guests which seemed to have locked up
after this message:
ad0: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=16183439
Though the second freebsd guest didn't seem to use up nearly as much cpu,
but it uses up far lower resources than the first.
--
Thomas Fjellstrom
tfjellstrom@shaw.ca
next prev parent reply other threads:[~2010-01-03 8:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-03 8:31 FreeBSD guest hogs cpu after disk delay? Thomas Fjellstrom
2010-01-03 8:43 ` Thomas Fjellstrom [this message]
2010-01-04 15:06 ` Thomas Fjellstrom
2010-01-04 15:08 ` Gleb Natapov
2010-01-04 15:35 ` Thomas Fjellstrom
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