I''ve managed to get a corrupted filesystem that''s bad enough off that I get fun and interesting kernel BUG()''s from it: [ 0.000000] Linux version 2.6.35.3-10.3-netbook (abuild@build25) (gcc version 4.5.0 20100414 (MeeGo 4.5.0-1) (GCC) ) #1 SMP PREEMPT Fri Oct 15 17:53:05 UTC 2010 [ 385.669060] device fsid cc4f66a85c124274-f6e4e4033873ff83 devid 1 transid 11793 /dev/sda2 [ 385.942423] ------------[ cut here ]------------ [ 385.942442] kernel BUG at fs/btrfs/tree-log.c:813! [ 385.942455] invalid opcode: 0000 [#1] PREEMPT SMP [ 385.942471] last sysfs file: /sys/devices/virtual/bdi/btrfs-1/uevent [ 385.942481] Modules linked in: battery uvcvideo serio_raw joydev dm_snapshot dm_mod [ 385.942510] [ 385.942524] Pid: 1089, comm: mount Not tainted 2.6.35.3-10.3-netbook #1 /AOA110 [ 385.942539] EIP: 0060:[<c1156613>] EFLAGS: 00010246 CPU: 1 [ 385.942559] EIP is at add_inode_ref+0x43/0x342 [ 385.942571] EAX: 00000000 EBX: ccfe2628 ECX: ffffffff EDX: 00000005 [ 385.942584] ESI: c6f3e800 EDI: e2065cd3 EBP: e2065c8c ESP: e2065c48 [ 385.942596] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 385.942611] Process mount (pid: 1089, ti=e2064000 task=f6709270 task.ti=e2064000) [ 385.942621] Stack: [ 385.942628] f3062000 ee566720 00000097 00000000 e2065c98 c114206e ee566720 e2065c6c [ 385.942657] <0> c114aa7a c52ea400 00000000 000000ac ccfd7da4 00001000 e2065d74 ee566720 [ 385.942688] <0> 00000002 e2065cf0 c11574b9 ccfe2628 ee566720 00000002 e2065cd3 c1c37800 [ 385.942721] Call Trace: [ 385.942740] [<c114206e>] ? btrfs_item_size+0x5b/0x9e [ 385.942759] [<c114aa7a>] ? unmap_extent_buffer+0xc/0xe [ 385.942777] [<c11574b9>] ? replay_one_buffer+0x1ba/0x22e [ 385.942796] [<c1155064>] ? walk_up_log_tree+0x102/0x1b0 [ 385.942813] [<c11572ff>] ? replay_one_buffer+0x0/0x22e [ 385.942829] [<c11554db>] ? walk_log_tree+0x8f/0x18b [ 385.942847] [<c1158cab>] ? btrfs_recover_log_trees+0x166/0x241 [ 385.942864] [<c11572ff>] ? replay_one_buffer+0x0/0x22e [ 385.942883] [<c112d2d9>] ? open_ctree+0x1081/0x12ec [ 385.942904] [<c1191986>] ? snprintf+0x15/0x17 [ 385.942922] [<c1114cd3>] ? btrfs_fill_super+0x4e/0xed [ 385.942937] [<c118fbb0>] ? strlcpy+0x13/0x2f [ 385.942953] [<c11151d2>] ? btrfs_get_sb+0x142/0x25f [ 385.942973] [<c10a4069>] ? __alloc_percpu+0xa/0xc [ 385.942989] [<c10a6e74>] ? vfs_kern_mount+0x49/0xdb [ 385.943004] [<c10a6f4c>] ? do_kern_mount+0x34/0xc0 [ 385.943022] [<c10b9e14>] ? do_mount+0x244/0x286 [ 385.943039] [<c108e5f2>] ? strndup_user+0x3f/0x65 [ 385.943055] [<c10b9eea>] ? sys_mount+0x62/0x95 [ 385.943072] [<c1002857>] ? sysenter_do_call+0x12/0x26 [ 385.943076] Code: 5d 08 8b 57 09 8b 4f 0d e8 99 f0 ff ff 85 c0 89 45 ec 0f 84 05 03 00 00 8b 17 8b 4f 04 89 f0 e8 82 f0 ff ff 85 c0 89 45 e4 75 02 <0f> 0b 6b 45 10 19 83 c0 65 89 c2 89 45 f0 8b 45 0c e8 a9 b8 fe [ 385.943076] EIP: [<c1156613>] add_inode_ref+0x43/0x342 SS:ESP 0068:e2065c48 [ 385.943329] ---[ end trace 690c5378e1aae040 ]--- I''m currently trying to get an image out of the machine, can probably put it online somewhere if there is real need. Not subscribed, so please CC me. //Spider