On Wed, Aug 25, 2010 at 5:15 PM, Boris Dolgov <boris@xxxxxxxxxxx> wrote: > Hello! > > I try to use KVM on slackware host and centos5 guest with SMP. > > When the server is idle, I get following errors in /var/log/messages: > http://pastebin.com/4RrMVuXq > > Guest: > [root@centos-5-x64 ~]# uname -a > Linux centos-5-x64.slave 2.6.18-194.11.1.el5 #1 SMP Tue Aug 10 > 19:05:06 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux > > Start command: /usr/local/qemu/bin/qemu-system-x86_64 -name > centos-5-x64 -m 384 -smp 2 -cdrom > /root/CentOS-5.5-x86_64-netinstall.iso -drive > index=0,media=disk,if=virtio,file=/dev/mapper/vgvm-centos5x64,boot=on > -vnc 0.0.0.0:1 -net nic,macaddr=fe:e1:de:ad:57:22 -net > tap,script=/usr/local/qemu/bin/qemu-ifup -monitor stdio -usb > -usbdevice tablet -enable-kvm > > Host: > root@superserver:~# uname -a > Linux superserver 2.6.35.3 #4 SMP Mon Aug 23 12:17:01 MSD 2010 x86_64 > Intel(R) Xeon(R) CPU X3460 @ 2.80GHz GenuineIntel GNU/Linux > root@superserver:~# /usr/local/qemu/bin/qemu-system-x86_64 -version > QEMU PC emulator version 0.12.5 (qemu-kvm-0.12.5), Copyright (c) > 2003-2008 Fabrice Bellard > > What does it mean? The problem also reproduces without SMP or USB for a guest. I have installed Debian 5.0.5 to another VM, and the problem is unreproducible under it: debian-5-x64:~# uname -a Linux debian-5-x64.slave 2.6.26-2-amd64 #1 SMP Thu Aug 19 00:37:36 UTC 2010 x86_64 GNU/Linux Should I post it to redhat bugzilla as redhat bug, or it is KVM bug? Also, I have noticed a strange thing. In top on host, Debian qemu process consumes nearly 1% of cpu, but CentOS qemu process consumes nearly 20-30%, even when VM is idle. The problem also reproduces on centos-i386 guest and doesn't reproduce on debian-5-i386. -- Boris Dolgov. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
