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SubjectRe: 2.6.30-rc1 A few issues and a stall
Date
On Tuesday 14 April 2009 06:03:58 Avi Kivity wrote:
> Ed Tomlinson wrote:
> > Once the above networking stuff is setup I start kvm with the command below
> >
> > QEMU_AUDIO_DRV=alsa kvm -m 1024 -cdrom /mnt/sdc4/divx/archlinux-2009.02-ftp-i686.iso -boot c -smp 3 -usb -usbdevice tablet -vga std -drive file=arch.img -net nic,macaddr=52:54:00:12:34:23 -net tap,ifname=qtap0,script=no -soundhw all -mem-path /hugepages
> >
> > which works and the kvm session boots just fine.
> >
> > Issue 2. When I attempt to ping outside the kvm session the pc (not just the kvm session) hangs.
> > Its impossible to kill the kvm session and there are numerious info messages from RCU (tree RCU enabled)
> > about stalls.
> >
>
> The rcu messages are likely because a processor has died.
>
> Do things work if you drop -mem-path?

It makes no difference. I did notice that one cpu is peged at 100% though. I'll be trying
CONFIG_PROVE_LOCKING tonight for another problem - might give interesting results.

Ed


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