On Mon, 2006-07-17 at 03:45 +0100, Alasdair G Kergon wrote: > On Sat, Jul 15, 2006 at 01:17:29PM +0200, Peter Osterlund wrote: > > # echo "0 10000 linear /dev/loop0 0" | /sbin/dmsetup create test > > # echo "0 10000 linear /dev/mapper/test 0" | /sbin/dmsetup create test2 > > > I get the following warning from the lockdep validator. > > ============================================= > > [ INFO: possible recursive locking detected ] > > --------------------------------------------- > > Well at first sight the message is simply pointing out something expected - it > only say "INFO" after all - viz. recursive use of > down_read(&md->io_lock); is this indeed the same io_lock? Because if it is it's a serious deadlock; rwsem's are NOT self-recursive! -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
