4:31 p.m.
Hi,
I'm having a problem with a fedora15 x86_64 host with a fedora15
x86_64 guest on a Xeon E3-1240 with 8GB RAM on the guest. This is the
only guest. The server is configured as a mail server, using
spamassassin, postfix, amavisd, and clamav.
It was previously running without error on different hardware. I
migrated the disks to a more powerful server due to load. It's a new
server, and has been stress tested with memtest86, mprime, and
passmark's Linux test for more than 24 hours without producing a
problem.
However, when I run the kvm vm, I receive a bunch of errors similar to
these on the guest:
[169245.360511] clamscan[27448] general protection ip:7f125f2e6ffb
sp:7fff117566f0 error:0 in libclamav.so.6.1.11[7f125f229000+9ce000]
[29016.445470] clamd[1110] general protection ip:30df2c3981
sp:7fffa08f4fe0 error:0 in libclamav.so.6.1
.11[30df200000+9ce000]
There are other applications, such as pyzor, that produce similar errors.
Is this something that could be a result of some software
configuration error I've made? Is there something I can do to debug
this further? There also aren't any errors on the host indicating a
kernel problem or hardware issue.
Is it possible this is a known error?
I was previously trying to improve IO performance by using 'block'
instead of 'file' for the device, but had to abandon that idea because
it didn't work and I had to concentrate on this problem.
Could disabling the cache (cache=none) cause this?
I've included some info below, in hopes someone could guide me towards
a solution.
# rpm -qva|egrep 'kvm|libvirt|kernel|qemu'
libvirt-python-0.8.8-7.fc15.x86_64
kernel-2.6.40.6-0.fc15.x86_64
qemu-img-0.14.0-8.fc15.x86_64
gpxe-roms-qemu-1.0.1-4.fc15.noarch
kernel-2.6.40.4-5.fc15.x86_64
qemu-system-x86-0.14.0-8.fc15.x86_64
libvirt-0.8.8-7.fc15.x86_64
libvirt-client-0.8.8-7.fc15.x86_64
qemu-common-0.14.0-8.fc15.x86_64
kernel-headers-2.6.40.6-0.fc15.x86_64
qemu-kvm-0.14.0-8.fc15.x86_64
I've included my domain config below in hopes it helps.
<domain type='kvm'>
<name>mail02</name>
<uuid>ec4f3cf5-2f27-fb3e-72f6-3fa3176b13b6</uuid>
<memory>6291456</memory>
<currentMemory>6291456</currentMemory>
<vcpu>4</vcpu>
<os>
<type arch='x86_64' machine='pc-0.14'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source file='/var/lib/libvirt/images/mail02.img'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x05'
function='0x0'/>
</disk>
<disk type='block' device='cdrom'>
<driver name='qemu' type='raw'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1'
unit='0'/>
</disk>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01'
function='0x1'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:67:2c:4c'/>
<source bridge='br0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03'
function='0x0'/>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x02'
function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x06'
function='0x0'/>
</memballoon>
</devices>
</domain>
Thanks,
Alex