I enable debug of systemd-udevd by changing guest's /etc/udev/udev.conf to this:
udev_log="debug"
and regenerate initramfs. Then, we can get more message about this issue. I
select some useful messages from /run/initramfs/rdsosreport.txt:
systemd-udevd[199] probe /dev/vdb raid offset=8
system
I'm using following command line to start VM (The /var/tmp/vhost.0 connected to
a
malloc bdev (16 MB ) created by SPDK):
/home/wuzhouhui/qemu-2.12.1/x86_64-softmmu/qemu-system-x86_64 \
-name guest=wzh,debug-threads=on \
-machine pc-i440fx-2.12,accel=kvm,usb=off \
-
