On 05/28/2012 04:55 PM, Roberto Ragusa wrote: > On 05/26/2012 03:53 PM, Juan Orti Alcaine wrote: > >> I suspect it isn't working because "cryptsetup status >> /dev/mapper/luks-uuid" does not say anything about discards. I think >> it must say "flags: discards" >> >> Any suggestion? lsblk -D it should print non-zero discard size for the whole storage stack. dmsetup table <name of luks device> and you should see "allow-discards" as last option in mapping table. If not, discards are rejected. (Of course you can complicate it and use blktrace + fstrim) Milan -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel