On Sun, Aug 11, 2013 at 03:44:10PM +0200, Florian Lindner wrote: > Hello! > > I'm using ArchLinux with kernel Linux horus 3.10.5-1-ARCH #1 SMP PREEMPT. > Mounting and unmounting takes a long time: > > # time mount -v /mnt/Archiv > mount: /dev/sde1 mounted on /mnt/Archiv. > mount -v /mnt/Archiv 0,00s user 0,16s system 1% cpu 9,493 total > > # sync && time umount -v /mnt/Archiv > umount: /mnt/Archiv (/dev/sdd1) unmounted > umount -v /mnt/Archiv 0,00s user 0,33s system 1% cpu 23,247 total > > fstab: > > LABEL=Archiv /mnt/Archiv btrfs > defaults,compress=zlib > 0 0 > > Archiv is a RAID 0 comprised of two discs: > > Label: 'Archiv' uuid: b2504193-efeb-4ef3-8797-a8d73536a416 > Total devices 2 FS bytes used 1.99TB > devid 2 size 2.73TB used 1023.01GB path /dev/sde1 > devid 1 size 2.73TB used 1023.03GB path /dev/sdd1 > > Are un(mounting) times like these normal?
Are you using -o space_cache? If not can you add that and mount/umount a couple of times to get the cache built up and see if that helps. If you are using space cache then sysrq+w while its taking forever to unmount and create a bugzilla at bugzilla.kernel.org (make sure the component is set to btrfs) so I can take a look at it. Thanks, Josef -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
