Hello all We are experimenting with btrfs and we've run into some problems. We are running on two Sun Storage J4400 Arrays containing a total of 48 1 TB disks. With 24 disks in the btrfs: # mkfs.btrfs /dev/sd[b-y] WARNING! - Btrfs Btrfs v0.19 IS EXPERIMENTAL WARNING! - see http://btrfs.wiki.kernel.org before using adding device /dev/sdc id 2 ... adding device /dev/sdy id 24 fs created label (null) on /dev/sdb nodesize 4096 leafsize 4096 sectorsize 4096 size 21.83TB Btrfs Btrfs v0.19 fsck.btrfs runs fine: # sudo fsck.btrfs /dev/sdb found 36864 bytes used err is 0 total csum bytes: 0 total tree bytes: 36864 total fs tree bytes: 4096 btree space waste bytes: 26174 file data blocks allocated: 0 referenced 0 Btrfs Btrfs v0.19 Now with one more disk: # mkfs.btrfs /dev/sd[b-z] WARNING! - Btrfs Btrfs v0.19 IS EXPERIMENTAL WARNING! - see http://btrfs.wiki.kernel.org before using adding device /dev/sdc id 2 ... adding device /dev/sdz id 25 fs created label (null) on /dev/sdb nodesize 4096 leafsize 4096 sectorsize 4096 size 22.74TB Btrfs Btrfs v0.19 # fsck.btrfs /dev/sdb fsck.btrfs: volumes.c:1367: btrfs_read_sys_array: Assertion `!(ret)' failed. Aborted mkfs.btrfs compiled from the Git repository fails with the same error message. Other pertinent information: # uname -a Linux blade1 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux We are investigating btrfs for a long term project, so we would be happy to provide any debug information or test any kernel or btrfs-progs patches. Regards, Albert -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
