Hi,
I am trying to pass a Lustre directory mounted on the host to the guest.
I can pass a local directory in just fine when starting an instance via
virsh. I can execute the qemu command from libvirt's logs (dropping –S
flag) directly, and passing the Lustre mounted directory also works (but
the network complains about different MAC address). However, when I
start an instance using virsh, the mount inside the guest succeeds, and
ls works sometimes, but everything else (cat, touch, actual edit) on any
file in the mounted directory gives "Identifier removed" after some delay.
Is libvirt doing something beyond just calling qemu that can cause this
problem? And how do I get around it?
The host is RedHat 6.1, libvirt 1.0.3, qemu 1.4.50.
Thanks,
Tatiana
The command pulled out from the libvirt's log:
LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=none \
/usr/local/bin/qemu-system-x86_64 \
-name i3e -M pc-0.14 -S \
-cpu
SandyBridge,+pdpe1gb,+osxsave,+dca,+pcid,+pdcm,+xtpr,+tm2,+est,+smx,+vmx,+ds_cpl,+monitor,+dtes64,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme
\
-enable-kvm -m 2048 -smp 1,sockets=1,cores=1,threads=1 \
-uuid ccc66436-8535-472e-8397-eee52d01cffe -no-user-config -nodefaults \
-chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/i3e.monitor,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control -rtc
base=utc,driftfix=slew \
-no-kvm-pit-reinjection -no-shutdown -kernel
/var/lib/nova/instances/instance-0000003d/kernel \
-initrd /var/lib/nova/instances/instance-0000003d/ramdisk \
-append root=/dev/vda \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
-drive
file=/var/lib/nova/instances/instance-0000003d/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none
\
-device
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
\
-fsdev local,security_model=passthrough,id=fsdev-fs0,path=/mnt/lustre/ \
-device
virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=testfs,bus=pci.0,addr=0x3 \
-chardev
file,id=charserial0,path=/var/lib/nova/instances/instance-0000003d/console.log
\
-device isa-serial,chardev=charserial0,id=serial0 -chardev
pty,id=charserial1 \
-device isa-serial,chardev=charserial1,id=serial1 -device
usb-tablet,id=input0 \
-netdev tap,fd=30,id=hostnet0 -device
rtl8139,netdev=hostnet0,id=net0,mac=fa:16:3e:39:23:6f,bus=pci.0,addr=0x4 \
-vnc 127.0.0.1:3 -k en-us -vga cirrus -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
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