FYI: Linus' current kernel pre-patch (pre10-3) includes the patches Andrea Arcangeli sent to linux-kernel on Apr 5, with the subject "Re: **** LVM 0.8final patch vs. 2.3.99-pre3 ***" As I've been using this patch for ages, I'm not sure if this patch breaks binary compatibility to existing userlevel tools. You may need to recompile lvm tools. Jan