Re: KVM guest 100% cpu lock up

[Phil Daws <uxbod@splatnix.net>]

This problem still persists :( I have read a few articles about setting the clocksource to acpi_pm and the guest was stable for a couple of days, then low and behold the CPU on the guest started to climb too 100% and completely froze.  Only way to recover it was hard reset on the guest machine :(  Any thoughts ?

----- Original Message -----
From: "Phil Daws" <uxbod@splatnix.net>
To: "Andrew Jones" <drjones@redhat.com>
Cc: kvm@vger.kernel.org
Sent: Monday, 18 March, 2013 4:10:11 PM
Subject: Re: KVM guest 100% cpu lock up


----- Original Message -----
From: "Andrew Jones" <drjones@redhat.com>
To: "Phil Daws" <uxbod@splatnix.net>
Cc: kvm@vger.kernel.org
Sent: Monday, 18 March, 2013 4:08:48 PM
Subject: Re: KVM guest 100% cpu lock up



----- Original Message -----
> Hello,
> 
> I am having an intermittent issue where one of my KVM guests is
> locking up and when checking the process its running @ 100% cpu.
>  The host is CentOS 6.4 running the kernel
> kernel-2.6.32-358.0.1.el6.x86_64.
> 
> Would it be worth attempting to compile a 3.2 kernel and use the
> latest qemu-kvm package instead ?
> 

Can you please supply the full qemu command line?

thanks,
drew


> Thanks.
> --

qemu      5919 22.5 22.3 2705424 1798484 ?     Sl   15:23   4:44 /usr/libexec/qemu-kvm -name vs2 -S -M rhel6.4.0 -enable-kvm -m 2048 -smp 2,sockets=2,cores=1,threads=1 -uuid 38fb2902-06a5-0781-f14a-f17bf96668f1 -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/vs2.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/images/vs2.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=22,id=hostnet0,v
 host=on,vhostfd=23 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=54:52:00:02:01:04,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -devi
 ce usb-tablet,id=input0 -vnc 127.0.0.1:2 -vga cirrus -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html