Re: RAID-1 and Reiser4 issue: umount hangs

[Arend Freije]

Jens Axboe wrote: On Wed, May 31 2006, Arend Freije wrote: You're probably right. I found several posts on the linux-kernel list involving problems with write barrier support in combination with SATA and ext3 . So I tried: # mkfs -t ext3 /dev/md/0 # mount -o barrier=1 /dev/md/0 /mnt # cp -a $src /mnt # umount /mnt And indeed, umount hangs now as well. So it seems to be a linux-kernel issue after all... Can you please try 2.6.17-rc5? Great! 2.6.17_rc5 fixed this is issue. For Reiser4 as well as Ext3 (with barrier=1). Many Thanks! Arend