Hi, There are some patches for fsck flighting, they are integrated in David's branches. You can pull from David's latest branch, and see if it helps:
https://github.com/kdave/btrfs-progs integration-20140704 Have a try and see if it helps anyway. Thanks, Wang > Hi together, > I'm experiencing the following issues when I invoke `btrfsck` on a > sparse file image with a GPT and one (the only) btrfs partition attached > to a loop device > > $ sudo btrfsck --repair --init-csum-tree --init-extent-tree -b > /dev/loop0p1 > Incorrect local backref count on 128510738432 root 5 owner 3849475 > offset 0 found 1 wanted 0 back 0xbab41270 > backpointer mismatch on [128510738432 4096] > ref mismatch on [128510742528 12288] extent item 0, found 1 > btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags > & 1)' failed. > > $ sudo btrfsck --repair --init-csum-tree --init-extent-tree /dev/loop0p1 > Incorrect local backref count on 128510726144 root 5 owner 3849470 > offset 0 found 1 wanted 0 back 0xbbcb9500 > backpointer mismatch on [128510726144 12288] > ref mismatch on [128510738432 4096] extent item 0, found 1 > adding new data backref on 128510738432 root 5 owner 3849475 offset > 0 found 1 > Backref 128510738432 root 5 owner 3849475 offset 0 num_refs 0 not > found in extent tree > Incorrect local backref count on 128510738432 root 5 owner 3849475 > offset 0 found 1 wanted 0 back 0xbbcb9630 > backpointer mismatch on [128510738432 4096] > ref mismatch on [128510742528 12288] extent item 0, found 1 > btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags > & 1)' failed. > > $ sudo btrfsck --repair /dev/loop0p1 > Incorrect local backref count on 130861096960 root 5 owner 22733727 > offset 0 found 1 wanted 0 back 0xc7c7d170 > backpointer mismatch on [130861096960 8192] > ref mismatch on [130861105152 8192] extent item 0, found 1 > btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags > & 1)' failed. > > $ sudo btrfsck --repair /dev/loop0p1 > Backref 130861096960 root 5 owner 22733727 offset 0 num_refs 0 not > found in extent tree > Incorrect local backref count on 130861096960 root 5 owner 22733727 > offset 0 found 1 wanted 0 back 0xc7f31170 > backpointer mismatch on [130861096960 8192] > ref mismatch on [130861105152 8192] extent item 0, found 1 > btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags > & 1)' failed. > > I'm using `btrfs-progs` 24cf4d8c3ee924b474f68514e0167cc2e602a48d on > Linux 3.16-rc5 (anything else, i.e. older versions, give me immediate > error after start because errornous file system) > > I'd like to know whether this (assertion) error is related to a bug or > missing feature in btrfs-progs and might be fixed at some point or > whether this might indicate a completely messed up btrfs. > > Best regards, > Karl-P. Richter > -- 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
