Hi New shared snapshots are here. It incorporates Mike's changes and it has reworked memory limit: - a minimum of 8 buffers is guaranteed to prevent thrasing with too big chunk sizes - the cache for multisnapshots is limited to 2% of memory or 25% of vmalloc memory (whichever is lower) [ I'm thinking about making this configurable in /proc ] - big chunk sizes (8MB or more) allocate memory always from vmalloc, there is no point in allocating from general allocator Mikulas -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel