Re: kvm-77 Excessive Disk Access causes real time clock hang!

2009-05-04 Thread Erik Rull
Hi Avi, Avi Kivity wrote: Erik Rull wrote: The file system is the guest's business. Instead of '-hda /dev/hda2', try -drive file=/dev/hda2,cache=none great! cache=off worked - none caused an error. The Timing problem is still present but the XP system is now much more interactive during

Re: kvm-77 Excessive Disk Access causes real time clock hang!

2009-05-04 Thread Erik Rull
Hi Avi, Avi Kivity wrote: Erik Rull wrote: The file system is the guest's business. Instead of '-hda /dev/hda2', try -drive file=/dev/hda2,cache=none great! cache=off worked - none caused an error. The Timing problem is still present but the XP system is now much more interactive during

Re: kvm-77 Excessive Disk Access causes real time clock hang!

2009-04-29 Thread Avi Kivity
Erik Rull wrote: Hi Avi, Avi Kivity wrote: interface: virtio cache: none format: raw, using a partition or logical volume What are you using? uhm, I'm not sure, I call qemu with: qemu-system-x86_64 -usb -hda /dev/hda2 -m 1536 -net nic,macaddr=$MACADDR -net tap,script=/etc/qemu-ifup

Re: kvm-77 Excessive Disk Access causes real time clock hang!

2009-04-27 Thread Avi Kivity
Erik Rull wrote: Are you using qcow2? In some cases qcow2 will stall the guest cpu. Note that defragmenting the guest drive may cause the qcow2 file to fragment even more, and will certainly increase its size. I recommend only defragmenting when using raw storage. I don't think so. I

Re: kvm-77 Excessive Disk Access causes real time clock hang!

2009-04-27 Thread Erik Rull
Hi Avi, Avi Kivity wrote: interface: virtio cache: none format: raw, using a partition or logical volume What are you using? uhm, I'm not sure, I call qemu with: qemu-system-x86_64 -usb -hda /dev/hda2 -m 1536 -net nic,macaddr=$MACADDR -net tap,script=/etc/qemu-ifup -no-acpi -monitor stdio

Re: kvm-77 Excessive Disk Access causes real time clock hang!

2009-04-26 Thread Avi Kivity
Erik Rull wrote: Hi all, I'm running kvm-77 and windows xp as guest. When I start the defragmentation of the virtualized drive within the windows guest (well this is not a fine way, but it should work :-)), the real time clock starts hanging - I recognized that because some underlying

Re: kvm-77 Excessive Disk Access causes real time clock hang!

2009-04-26 Thread Erik Rull
Hi Avi, Avi Kivity wrote: Are you using qcow2? In some cases qcow2 will stall the guest cpu. Note that defragmenting the guest drive may cause the qcow2 file to fragment even more, and will certainly increase its size. I recommend only defragmenting when using raw storage. I don't think