* Mike Snitzer <snitzer@xxxxxxxxxx> [2010-09-09 12:56]: > On Thu, Sep 09 2010 at 12:03pm -0400, > Ryan Harper <ryanh@xxxxxxxxxx> wrote: > > > * Mike Snitzer <snitzer@xxxxxxxxxx> [2010-09-09 10:58]: > > > > I'm using virtio-blk w/ cache=none for the root device. virtio-blk > > > isn't used for any other devices in the guest. > > > > And you don't have any other disks in the guest (I see just the root and > > the cdrom), the lv stuff is happening against some sort of dummy target? > > Correct. I have used variants of the script I provided against both > scsi-debug devices and iscsi devices in the guest. The script I shared > uses multipath on scsi-debug (ram-based) devices. > > That script causes udev to run its various callouts via multipath and > LVM (both packages, upstream and RHEL6, now use udev). > > I have verified that I no longer get the hang if I switch the root > device from virtio to ide. And in the failing case, do you see: /sys/block/vda/serial attribute in sysfs? -- Ryan Harper Software Engineer; Linux Technology Center IBM Corp., Austin, Tx ryanh@xxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
