--- On Fri, 4/18/08, Avi Kivity <[EMAIL PROTECTED]> wrote: > From: Avi Kivity <[EMAIL PROTECTED]> > Subject: Re: [kvm-devel] Second KVM process hangs eating 80-100% CPU on host > during startup > To: "Alex Davis" <[EMAIL PROTECTED]> > Cc: kvm-devel@lists.sourceforge.net > Date: Friday, April 18, 2008, 12:12 PM > Alex Davis wrote: > > Host software: > > Linux 2.6.24.4 > > KVM 65 (I am using the kernel modules from this > release). > > X11 7.2 from Xorg > > SDL 1.2.13 > > GCC 4.1.1 > > Glibc 2.4 > > > > Host hardware: > > Asus P5B Deluxe (P965 chipset based) motherboard > > 4 GB RAM > > Intel E6700 CPU > > > > Guest software: > > Slackware 12.0 installed from CD-ROM. > > > > Command used to first KVM instance: > > /usr/local/bin/qemu-system-x86_64 -hda > /spare/vdisk1.img -cdrom /dev/cdrom -boot c -m 384 -net > > nic,macaddr=DE:AD:BE:EF:11:29 -net > tap,ifname=tap0,script=no & > > > > Command used to start second KVM instance: > > /usr/local/bin/qemu-system-x86_64 -hda > /spare/vdisk2.img -cdrom /dev/cdrom -boot c -m 384 -net > > nic,macaddr=DE:AD:BE:EF:11:30 -net > tap,ifname=tap1,script=no & > > > > tap0 and tap1 are bridged on the host. The guest OS > was installed on /spare/vdisk1.img, > > which was initially created by /usr/local/bin/qemu-img > create -f qcow /spare/vdisk.img 10G > > After the guest installation completed, vdisk1 was > copied to vdisk2. > > > > The second instance always stops after printing > > Checking if the processor honours the WP bit even in > supervisor mode... Ok. > > It stays hung until I press the return key in the > first instance; sometimes clicking in another X > > window will wake it up as well. > > > > This is a test machine so I can test patches (almost) > at will. > > > > > > Strange. Does pinning each guest to a different cpu help > (use 'taskset > 1 qemu ... vdisk1.img & ', taskset 2 qemu ... > vdisk2.img) > >
taskset made no difference. Upgrading to kvm-66 didn't help either. > Any sufficiently difficult bug is indistinguishable from a > feature. ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel