Bug#604240: qemu-kvm: Centos 5.5 guest hogs CPU

2010-11-22 Thread Alex
Hi, On 11/22/2010 01:31 PM, m...@tls.msk.ru wrote: Were you able to boot the guest at all, or does it stall on you and does not work? Yup, I didn't even notice the problem until the CPU fans went into overdrive. Thank you for your time (however, note that this is not critical to me) Cheers,

Bug#604240: qemu-kvm: Centos 5.5 guest hogs CPU

2010-11-22 Thread mjt
An update to this bugreport. We tried triggering it on several machines, and discovered the following: The high load on host is due to rhel/centos 5 kernel using 1000Hz timer tick, and their kernel is not tickless. The load will be higher or lower depending on your host cpu speed, cpufreq profil

Bug#604240: qemu-kvm: Centos 5.5 guest hogs CPU unless APIC is disabled

2010-11-21 Thread Michael Tokarev
tags 604240 - moreinfo unreproducible tags 604240 + confirmed severity 604240 wishlist retitle 604240 Centos 5.5 guest hogs CPU thanks 21.11.2010 15:59, Alex wrote: > OK, no worries. > > My QEMU commandline is: > > /usr/bin/kvm -S -M pc-0.12 -cpu qemu32 -enable-kvm -m 512 -smp 1... > -device >

Bug#604240: qemu-kvm: Centos 5.5 guest hogs CPU unless APIC is disabled

2010-11-21 Thread Alex
OK, no worries. My QEMU commandline is: /usr/bin/kvm -S -M pc-0.12 -cpu qemu32 -enable-kvm -m 512 -smp 1,sockets=1,cores=1,threads=1 -name noctem -uuid 1bccb2d6-edbc-3831-7190-39a8b5c34b4a -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/noctem.monitor,server,nowait -mon ch

Bug#604240: qemu-kvm: Centos 5.5 guest hogs CPU unless APIC is disabled

2010-11-21 Thread Michael Tokarev
tags 604240 + unreproducible moreinfo thanks 21.11.2010 14:25, Alex wrote: > Package: qemu-kvm > Version: 0.12.5+dfsg-4 > Severity: normal > > Hi, > > After booting a recently-installed Centos 5.5 i686 guest (with no additional > packages), qemu-kvm hogs the host's cpu. Inside the guest, there's

Bug#604240: qemu-kvm: Centos 5.5 guest hogs CPU unless APIC is disabled

2010-11-21 Thread Alex
Package: qemu-kvm Version: 0.12.5+dfsg-4 Severity: normal Hi, After booting a recently-installed Centos 5.5 i686 guest (with no additional packages), qemu-kvm hogs the host's cpu. Inside the guest, there's no CPU activity. If I disable APIC in the guest, this does not happen. Thanks, Alex --