On Tue, 16 Sep 2014 12:33:09 +0800, Daniel J Blueman wrote:
> On 3.14.18 with a BTRFS partition mounted
> noatime,autodefrag,compress=lzo, I see the second assertion in
> btrfs_set_item_key_safe() trip:
>
> void btrfs_set_item_key_safe(struct btrfs_root *root, struct btrfs_path *path,
> struct btrfs_key *new_key)
> {
> struct btrfs_disk_key disk_key;
> struct extent_buffer *eb;
> int slot;
>
> eb = path->nodes[0];
> slot = path->slots[0];
> if (slot > 0) {
> btrfs_item_key(eb, &disk_key, slot - 1);
> BUG_ON(comp_keys(&disk_key, new_key) >= 0);
> }
> if (slot < btrfs_header_nritems(eb) - 1) {
> btrfs_item_key(eb, &disk_key, slot + 1);
> BUG_ON(comp_keys(&disk_key, new_key) <= 0); <---
> }
>
> Full backtrace:
>
> kernel BUG at /home/apw/COD/linux/fs/btrfs/ctree.c:3215!
This matches exactly the description mentioned just recently:
http://article.gmane.org/gmane.comp.file-systems.btrfs/38340
(not in that posting, but in the patch description).
You seem to be running a custom kernel, so try if that patch
helps. Also try nuking the free space cache when you have it
applied.
-h
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