For those I you still strapped to the Solaris 10 boat anchor, I see that kernel patch 142901-09 (142900 on SPARC) includes new interesting zfs fixes: 6586537 async zio taskqs can block out userland commands 6793877 lockd and Apache can block ZFS force-unmounting on behalf of clients 6844158 assertion failed: vd->vdev_ops == &vdev_mirror_ops, file: ../../common/fs/zfs/zvol.c, line: 1054 6847118 hang in ZFS during rollback 6880764 fsync on ZFS is broken if writes are greater than 32kb on a hard crash and no log attached 6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 There might be more, but these are the ones which definitely look like zfs stuff. The first one is most interesting to me. Unfortunately, it seems that the fix for the lack of prefetch that I reported last summer (and am running an IDR for) is apparently still not included. Bob -- Bob Friesenhahn bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/