Re: KVM Test result, KVM62-RC2

[Farkas Levente <lfarkas@bppiac.hu>]

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: robot@pts/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:-(

-- 
  Levente                               "Si vis pacem para bellum!"

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