On Wednesday 14 September 2011 16:30:11 Rick Vernam wrote: > On Wednesday 14 September 2011 14:42:09 vrozenfe wrote: > > Thank you, Rick. > > > > Could you help me to narrow this problem down? > > Absolutely. > > > As I see, you have three virtio drivers installed on your system - block, > > net, and virtio serial. Technically, anyone of them can create "trying to > > map MMIO memory" problem. The best way to find a buggy driver ( or > > drivers) will be to isolate one from the other. If you can, please try > > running only one virtio device every time to see which driver sends > > incorrect scatter/gather list element to QEMU. > > Sure, no problem. I'll have that in the next few days. I started qemu without any of the virt-serial stuff, specfically: qemu-system-x86_64 -cpu host -enable-kvm -pidfile /home/rick/qemu/hds/wxp.pid - drive file=/home/rick/qemu/hds/wxp.raw,if=virtio,aio=native -m 1536 -name WinXP -net nic,model=virtio -net user -localtime -usb -vga qxl -spice port=1234,disable-ticketing -monitor stdio
It's been running for around 2 hours and no crash yet. Thanks, -Rick > > > Another question. You said, the problem happens after every second or > > third restart. Do you shutdown your VM, or just restart it? > > Have to shut down the VM guest so that the qemu process exits. > > > How does it work > > after going through several hibernate/resume, and/or suspend/resume > > cycles. > > I often will suspend with or without pausing qemu (via monitor commands > 'stop' and 'cont'). I have never experienced any problem with the qemu > process that was running prior to the suspend. > > > Best regards, > > Vadim. > > Thanks, > -Rik
