[Qemu-devel] [Bug 458201] Re: kernel stacktrace on volume detach in kvm guest

[Anthony Liguori]

** Changed in: qemu
       Status: Confirmed => Invalid

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kernel stacktrace on volume detach in kvm guest
https://bugs.launchpad.net/bugs/458201
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Status in QEMU: Invalid
Status in “linux” package in Ubuntu: Fix Released
Status in “qemu-kvm” package in Ubuntu: Invalid

Bug description:
Binary package hint: qemu-kvm

I'm using eucalyptus, an install post beta

I do (cc$ indicates cloud controller, instance$ indicates in instance)

- cc$ euca-create-volume -s 1 -z sm-zone-1a
- cc$ euca-attach-volume -i i-4AA8096D -d sdb vol-32F804B0
- instance$ sudo mkfs.ext4 -F /dev/sdb
- instance$ sudo mount /dev/sdb /mnt
- instance$ echo "hello world" | tee /mnt/foo
- instance$ sudo umount /mnt
- instance$ sudo mount /dev/sdb /mnt
- instance$ cat /mnt/foo
- instance$ sudo umount /mnt
- cc$ euca-detach-volume vol-32F804B0

And the instance sees a kernel stack trace in dmesg.

$ dpkg-query --show qemu-kvm "*euca*"
euca2ools       1.0+bzr20091007-0ubuntu1
eucalyptus-common       1.6~bzr931-0ubuntu2
eucalyptus-gl   1.6~bzr931-0ubuntu2
eucalyptus-nc   1.6~bzr931-0ubuntu2
qemu-kvm        0.11.0-0ubuntu5

the UEC image was 20091022 (RC)