Broken btrfs; btrfsck and btrfs-debug-tree core dumps

["Jörg Sommer" <joerg@alea.gnuu.de>]

[-- Attachment #1: Type: text/plain, Size: 6537 bytes --]

Hi,

I've an utterly broken btrfs that makes btrfsck and btrfs-debug-tree
(version 0.19) die with a core dump. Are you interested in this
filesystem? Unfortunely, it has a size of 1TB and contains the backups of
our customers. Hence, I can't publish it. How can we come together?

Core was generated by `btrfs-debug-tree /dev/sdd2'.
Program terminated with signal 6, Aborted.
(gdb) bt full
#0  0x00002aaefe0e9f55 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        pid = <value optimized out>
        selftid = <value optimized out>
#1  0x00002aaefe0ecd90 in *__GI_abort () at abort.c:88
        act = {__sigaction_handler = {sa_handler = 0x20, sa_sigaction = 0x20}, sa_mask = {__val = {33796928, 24, 46931078315616, 4, 46931075322034, 46931078315616, 0, 46931074869936, 46931070637088, 46931078315616, 4294967295, 1, 0, 27266932, 14, 27041808}}, sa_flags = 4096, sa_restorer = 0x619220 <_GLOBAL_OFFSET_TABLE_+64>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x000000000040c4bb in btrfs_print_tree (root=0x19ca010, eb=<value optimized out>) at print-tree.c:662
        next = 0x203a2e0
        i = 14
        nr = 64
        size = 4096
        disk_key = {objectid = 756658176, type = 168 '\250', offset = 4096}
#3  0x000000000040c4c6 in btrfs_print_tree (root=0x19ca010, eb=<value optimized out>) at print-tree.c:663
        next = 0x1a00f10
        i = 0
        nr = 12
        size = 4096
        disk_key = {objectid = 902778220544, type = 168 '\250', offset = 4096}
#4  0x0000000000412f3b in main (ac=<value optimized out>, av=<value optimized out>) at debug-tree.c:263
        buf = 0x19fddc0
        skip = <value optimized out>
        root = <value optimized out>
        path = {nodes = {0x19fcd50, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, slots = {0, 0, 0, 0, 0, 0, 0, 0}, locks = {0, 0, 0, 0, 0, 0, 0, 0}, reada = 0, lowest_level = 0, search_for_split = 0, keep_locks = 0, skip_locking = 0, leave_spinning = 0}
        key = {objectid = 0, type = 132 '\204', offset = 0}
        ri = {inode = {generation = 1, transid = 0, size = 3, nbytes = 4096, block_group = 0, nlink = 1, uid = 0, gid = 0, mode = 16877, rdev = 0, flags = 0, sequence = 0, reserved = {0, 0, 0, 0}, atime = {sec = 0, nsec = 0}, ctime = {sec = 0, nsec = 0}, mtime = {sec = 0, nsec = 0}, otime = {sec = 0, nsec = 0}}, generation = 1124, root_dirid = 0, bytenr = 36537159680, byte_limit = 0, bytes_used = 4096, last_snapshot = 0, flags = 0, refs = 1, drop_progress = {objectid = 0, type = 0 '\000', offset = 0}, drop_level = 0 '\000', level = 3 '\003'}
        leaf = 0x19fcd50
        disk_key = {objectid = 2, type = 132 '\204', offset = 0}
        uuidbuf = "\000\000\000\000\000\000\000\000X3\313\375\256*\000\000p\b\242T\377\177\000\000\210\b\242T\377\177\000\000\000\000\000\000\001"
        ret = <value optimized out>
        slot = <value optimized out>
        extent_only = 0
        tree_root_scan = 0x19ca010
        __PRETTY_FUNCTION__ = "main"

Core was generated by `btrfsck /dev/sdd2'.
Program terminated with signal 6, Aborted.
(gdb) bt full
#0  0x00002b7362f01f55 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        pid = <value optimized out>
        selftid = <value optimized out>
#1  0x00002b7362f04d90 in *__GI_abort () at abort.c:88
        act = {__sigaction_handler = {sa_handler = 0, sa_sigaction = 0}, sa_mask = {__val = {47774584400000, 41680688, 37266931712, 0, 0, 1, 47774581843675, 47774580959920, 47774576727072, 140736110625552, 4294967295, 47774584405704, 0, 41680688, 37266931712, 0}}, sa_flags = 0, sa_restorer = 0x61cbe0 <_GLOBAL_OFFSET_TABLE_+64>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x000000000040b943 in btrfs_lookup_extent_info (trans=0x0, root=0x27bff30, bytenr=37266931712, num_bytes=4096, refs=0x0, flags=0x7fffade18808) at extent-tree.c:1453
        path = <value optimized out>
        ret = <value optimized out>
        key = {objectid = 37266931712, type = 168 '\250', offset = 4096}
        item_size = <value optimized out>
        num_refs = <value optimized out>
        extent_flags = <value optimized out>
        __PRETTY_FUNCTION__ = "btrfs_lookup_extent_info"
#3  0x0000000000402332 in run_next_block (root=0x27bff30) at btrfsck.c:2140
        buf = 0x289a640
        size = 4096
        owner = 7
        flags = <value optimized out>
        nritems = <value optimized out>
        key = {objectid = 18446744073709551606, type = 128 '\200', offset = 123843641344}
        ret = <value optimized out>
        i = 0
        cache = <value optimized out>
        __PRETTY_FUNCTION__ = "run_next_block"
#4  check_extents (root=0x27bff30) at btrfsck.c:2428
        extent_cache = {root = {rb_node = 0x27ddc90, rotate_notify = 0x6}}
        seen = {root = {rb_node = 0x27ddd30, rotate_notify = 0}}
        pending = {root = {rb_node = 0x27ff550, rotate_notify = 0}}
        reada = {root = {rb_node = 0x28069c0, rotate_notify = 0x2b7362ac0e45 <_dl_runtime_resolve+53>}}
        nodes = {root = {rb_node = 0x286ed60, rotate_notify = 0x3}}
        path = {nodes = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, slots = {0, 0, 0, 0, 0, 0, 0, 0}, locks = {0, 0, 0, 0, 0, 0, 0, 0}, reada = 0, lowest_level = 0, search_for_split = 0, keep_locks = 0, skip_locking = 0, leave_spinning = 0}
        key = {objectid = 0, type = 132 '\204', offset = 0}
        found_key = {objectid = 18446744073709551607, type = 132 '\204', offset = 0}
        ret = <value optimized out>
        last = 37266931712
        leaf = <value optimized out>
        ri = {inode = {generation = 1, transid = 0, size = 3, nbytes = 4096, block_group = 0, nlink = 1, uid = 0, gid = 0, mode = 16877, rdev = 0, flags = 0, sequence = 0, reserved = {0, 0, 0, 0}, atime = {sec = 0, nsec = 0}, ctime = {sec = 0, nsec = 0}, mtime = {sec = 0, nsec = 0}, otime = {sec = 0, nsec = 0}}, generation = 5, root_dirid = 256, bytenr = 29380608, byte_limit = 0, bytes_used = 4096, last_snapshot = 0, flags = 0, refs = 1, drop_progress = {objectid = 0, type = 0 '\000', offset = 0}, drop_level = 0 '\000', level = 0 '\000'}
        __PRETTY_FUNCTION__ = "check_extents"
#5  0x0000000000404acb in main (ac=<value optimized out>, av=<value optimized out>) at btrfsck.c:2460
        root = <value optimized out>
        ret = 1

Bye, Jörg.
-- 
Du kannst einem Schwein einen goldenen Ring durch die Nase ziehen,
deswegen bleibt es trozdem ein Schwein!

[-- Attachment #2: Digital signature http://en.wikipedia.org/wiki/OpenPGP --]
[-- Type: application/pgp-signature, Size: 198 bytes --]