On Tue, Feb 26, 2008 at 02:38:59PM +0100, Farkas Levente wrote: > Farkas Levente wrote: > > Izik Eidus wrote: > >> On Tue, 2008-02-26 at 12:58 +0100, Farkas Levente wrote: > >>> Zhao, Yunfeng wrote: > >>>> Hi, all, > >>>> > >>>> This is today's KVM test result against KVM62-RC2. > >>>> > >>>> Two old issues fixed: > >>>> 1. fc5/fc6/rhel5u1 no-acpi up guests can't boot on pae host > >>>> https://sourceforge.net/tracker/index.php?func=detail&aid=1901208&group_ > >>>> id=180599&atid=893831 > >>>> 2. Cannot boot 32bit smp RHEL5.1 guest with nic on 64bit host > >>>> https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1812043&gro > >>>> up_id=180599 > >>> unfortunately it seems there are other problems with smp on rhel 5.1:-( > >>> almost all commands hangs randomly. which means eg: > >>> yum update > >>> do nothing after 3-4 times and ctrl-c it's runs without problem. the > >>> same happened with an rpmbuild command during it's hang nothing happened > >>> no cpu load, no error neither in the host no on the guest: > >>> ------------------------------- > >>> 25028 ? Ss 0:00 \_ sshd: robot [priv] > >>> 25030 ? S 0:02 | \_ sshd: [EMAIL PROTECTED]/1 > >>> 25031 pts/1 Ss 0:00 | \_ -bash > >>> 29543 pts/1 S+ 0:00 | \_ rpmbuild -ta --define ver > >>> 4.0.4.15 --define svn 2483 --define dist el5 > >>> /home/robot/rpm/SOURCES/xyz-2483.tar.bz2 > >>> ------------------------------- > >>> so it's finally boot, but very unstable (the same not happened with 64 > >>> guest on the same host). > >> what happen if you run the commands with taskset 0 ? > > > > # taskset 0 ls > > sched_setaffinity: Invalid argument > > failed to set pid 0's affinity. > > ok so i've a few more info. my host system has 4 cpu (centos-5.1 x86_64) > and if give 4 vcpu to the guest (centos-5.1 i386) it's working correctly > IF i do _not_ start any other guest on the host. if i start other > guests, then it's randomly start or not start a given command. but with > taskset -c 0 it's always runs the command. > now i switch back to 1 vcpu since i can't force vcpu (taskset) for cron > tasks and other processes:-(
Farkas, You can workaround these problems by using a different, less problematic clocksource such as acpipm, until the TSC/migration issues are fully resolved. Add "clocksource=acpi_pm" to the kernel options. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
