On Tue, Jan 26, 2010 at 10:16:42PM +0100, briaeros007 wrote: > Hello, > > I have a btrfs volume on a two 1TB disk, and i've been trying to add a > new (1.5 TB) to this volume. I've done btrfsctl -a /dev/sdb /mnt/btrfs > without trouble, and btrfs-show see the third disk. > But I've got segfault when I try to balance the data. > And when a try a fsck, he do absolutely nothing. See the commands > below (and the dmesg) > > So if you have any idea, or want to do any additionnal tests (other > than throwing away data that are on theses disks, since, even if i > know btrfs is under heavy developpment, id'like to keep some data and > haven't the right device right now to do the transfer). > > > Cordially. > > > <r...@oni:/home/alpha> > zsh/3 2 # umount /mnt/btrfs > umount: /mnt/btrfs: not mounted > [mar. 10/01/26 20:07 > CET][pts/11][x86_64/linux-gnu/2.6.33-rc5-00247-gc3e6a41][4.3.9] > <r...@oni:/home/alpha> > zsh/3 3 [1] # btrfsck /dev/sdb > failed to read /dev/sr0 > bad block 2064048422912 > bad block 924702326784 > leaf parent key incorrect 2026404634624 > bad block 2026404634624 > leaf parent key incorrect 2045515939840 > bad block 2045515939840 > owner ref check failed [924702326784 4096] > owner ref check failed [2026404634624 4096] > owner ref check failed [2045515939840 4096] > owner ref check failed [2064048422912 4096] > found 1884638785584 bytes used err is 1 > total csum bytes: 1836791604 > total tree bytes: 3778641920 > total fs tree bytes: 1484914688 > btree space waste bytes: 611092845 > file data blocks allocated: 1926324310016 > referenced 1880273379328 > Btrfs v0.19-4-gab8fb4c > [mar. 10/01/26 20:10 > CET][pts/11][x86_64/linux-gnu/2.6.33-rc5-00247-gc3e6a41][4.3.9] > <r...@oni:/home/alpha> > zsh/3 4 [1] # btrfsck /dev/sdb > failed to read /dev/sr0 > bad block 2064048422912 > bad block 924702326784 > leaf parent key incorrect 2026404634624 > bad block 2026404634624 > leaf parent key incorrect 2045515939840 > bad block 2045515939840 > owner ref check failed [924702326784 4096] > owner ref check failed [2026404634624 4096] > owner ref check failed [2045515939840 4096] > owner ref check failed [2064048422912 4096] > found 1884638785584 bytes used err is 1 > total csum bytes: 1836791604 > total tree bytes: 3778641920 > total fs tree bytes: 1484914688 > btree space waste bytes: 611092845 > file data blocks allocated: 1926324310016 > referenced 1880273379328 > Btrfs v0.19-4-gab8fb4c > [mar. 10/01/26 20:20 > CET][pts/11][x86_64/linux-gnu/2.6.33-rc5-00247-gc3e6a41][4.3.9] > <r...@oni:/home/alpha> > zsh/3 5 [1] # mount /mnt/btrfs > [mar. 10/01/26 21:38 > CET][pts/11][x86_64/linux-gnu/2.6.33-rc5-00247-gc3e6a41][4.3.9] > <r...@oni:/home/alpha> > zsh/3 6 # btrfs-show > failed to read /dev/sr0 > Label: none uuid: 3e021a76-954e-4f54-86a0-fa3849e451c2 > Total devices 3 FS bytes used 1.71TB > devid 3 size 1.36TB used 3.99GB path /dev/sdb > devid 2 size 931.51GB used 930.01GB path /dev/sdc > devid 1 size 931.51GB used 929.00GB path /dev/sdd > > Btrfs v0.19-4-gab8fb4c > [mar. 10/01/26 21:38 > CET][pts/11][x86_64/linux-gnu/2.6.33-rc5-00247-gc3e6a41][4.3.9] > <r...@oni:/home/alpha> > zsh/3 7 # btrfs-vol -b /mnt/btrfs > zsh: segmentation fault btrfs-vol -b /mnt/btrfs > [mar. 10/01/26 21:41 > CET][pts/11][x86_64/linux-gnu/2.6.33-rc5-00247-gc3e6a41][4.3.9] > <r...@oni:/home/alpha> > zsh/3 9 [139] # dmesg |grep BUG > [ 6417.151192] kernel BUG at fs/btrfs/volumes.c:1746! > [mar. 10/01/26 21:42 > CET][pts/11][x86_64/linux-gnu/2.6.33-rc5-00247-gc3e6a41][4.3.9] > <r...@oni:/home/alpha> > zsh/3 10 # > > my dmesg, from the warning, then the bug > > [ 6413.080969] btrfs: relocating block group 2917377507328 flags 9 > [ 6413.942527] btrfs: relocating block group 2914156281856 flags 9 > [ 6416.792048] btrfs csum failed ino 258 off 249937920 csum 3749246389 > private 2282873894 > [ 6416.798204] btrfs csum failed ino 258 off 249937920 csum 3749246389 > private 2282873894 > [ 6416.837809] btrfs csum failed ino 258 off 249937920 csum 3749246389 > private 2282873894 > [ 6416.841459] btrfs csum failed ino 258 off 249937920 csum 3749246389 > private 2282873894
CSUM failures. Something is going horribly wrong. Either one of the following 1) A bug 2) Bad memory 3) Something went wrong with the disk at some point 1 is hard to track down at this point, 3 is possible, but again hard to prove. So try running memtest86 on your system to rule out #2. If the memory checks out, reformat and try again. If you keep having problems we'll try and figure out if its #1 or #3. 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
