Mario Becroft wrote: > 2. I tried without xfs_freeze anyway just to see what would happen, and > actually in kernel 2.6.22.1 if you simply create a snapshot of the main > filesystem volume and destroy it several times in a row (not even > touching the log volume yet) lvcreate hangs. Well, probably two problems combined here. In 2.6.22 is change in block layer which serializes generic_make_request() calls and it causes some problems with synchronous metadata snapshot updates. See patch which moves metadata updates to separate thread http://www2.kernel.org/pub/linux/kernel/people/agk/patches/2.6/2.6.22/dm-snapshot-fix-invalidation-deadlock.patch Maybe lvcreate hang is just another demonstration of this problem. Please could you test it with 2.6.21 kernel, or with kernel with this patch applied ? Is the bug with separate filesystem log reported in bugzilla ? If you find problem with even patch above, please report it with exact description how you reach this. Milan -- mbroz@redhat.com _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
