Booting a guest with a qcow2 image and the virtio block backend, I get filesystem errors and disk corruption e.g.: ext4_abort called. EXT4-fs error (device dm-0): ext4_journal_start_sb: Detected aborted journal Remounting filesystem read-only I don't get this with raw disk images or the IDE block backend Command line: qemu-kvm -S -M pc -m 1024 -smp 2 -drive index=0,file=/var/lib/libvirt/images/f11-preview.snap1.qcow2, format=qcow2,if=virtio,boot=on -net nic,macaddr=00:16:3e:6c:05:22,model=virtio -net tap,ifname=tap0,script=/etc/qemu-ifup -nographic -serial telnet::4445,server,nowait -monitor stdio The disk image was created by installing F11Preview to a raw disk image, converting to qcow2 and then creating a COW image backed by it. I've also reproduced this with qemu-kvm.git's maint/2.6.30 branch (kvm-84-239-g50cc670) Tempted to add this to F11VirtBlocker, but since qcow2 isn't often used by Fedora users I'll leave it on F11VirtTarget.
Avi came up with a workaround patch which apparently fixes this: http://patchwork.kernel.org/patch/21849/
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
This appears to be the final agreed upon fix: http://lists.gnu.org/archive/html/qemu-devel/2009-05/msg00378.html
*** Bug 500051 has been marked as a duplicate of this bug. ***
qemu-0.10.4-2.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/qemu-0.10.4-2.fc11
qemu-0.10.4-3.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/qemu-0.10.4-3.fc11
qemu-0.10.4-3.fc11 has been pushed to the Fedora 11 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update qemu'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F11/FEDORA-2009-4954
qemu-0.10.4-4.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/qemu-0.10.4-4.fc11
qemu-0.10.4-4.fc11 has been pushed to the Fedora 11 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update qemu'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F11/FEDORA-2009-5050
qemu-0.10.4-5.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/qemu-0.10.4-5.fc11
qemu-0.10.4-4.fc11 has been pushed to the Fedora 11 stable repository. If problems still persist, please make note of it in this bug report.