I had a btrfs built on top of 5 drives (dmcrypt devices).
The drive then died while I was writing to the filesystem and my system
crashed and rebooted:
[384555.534020] sd 10:0:0:0: rejecting I/O to offline device
[384555.535057] sd 10:0:0:0: rejecting I/O to offline device
[384556.666885] ------------[ cut here ]------------
[384556.667909] sd 10:0:0:0: [sdj] Synchronizing SCSI cache
[384556.677509] kernel BUG at fs/btrfs/ctree.c:3451!
[384556.682551] invalid opcode: 0000 [#1] PREEMPT SMP
[384556.687878] CPU 2
/* push data from right to left */
copy_extent_buffer(left, right,
btrfs_item_nr_offset(btrfs_header_nritems(left)),
btrfs_item_nr_offset(0),
push_items * sizeof(struct btrfs_item));
push_space = BTRFS_LEAF_DATA_SIZE(root) -
btrfs_item_offset_nr(right, push_items - 1);
copy_extent_buffer(left, right, btrfs_leaf_data(left) +
leaf_data_end(root, left) - push_space,
btrfs_leaf_data(right) +
btrfs_item_offset_nr(right, push_items - 1),
push_space);
old_left_nritems = btrfs_header_nritems(left);
BUG_ON(old_left_nritems <= 0); <<<<<<< 3451
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
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