I have an btrfs-image of corrupted BtrFS partition After btrfsck --repair, mount failed with segfault both before and after
No subvolumes http://dev.mccme.ru/~raskin/btrfs.corruption.img.gz [ 41.169414] device label home-corrupted devid 1 transid 398696 /dev/sda [ 41.170974] btrfs: disk space caching is enabled [ 41.189699] btrfs: mismatching generation and generation_v2 found in root item. This root was probably mounted with an older kernel. Resetting all new fields. [ 41.433117] parent transid verify failed on 88661934080 wanted 398697 found 398691 [ 41.451047] parent transid verify failed on 88661934080 wanted 398697 found 398691 [ 41.498321] ------------[ cut here ]------------ [ 41.498326] kernel BUG at fs/btrfs/tree-log.c:1922! [ 41.498328] invalid opcode: 0000 [#1] SMP [ 41.498331] Modules linked in: ppdev parport_pc i2c_piix4 i2c_core parport microcode raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 multipath linear 8139cp 8139too mii [ 41.498347] CPU 0 [ 41.498350] Pid: 1580, comm: mount Not tainted 3.7.4-alt330-amd64 #2 Bochs Bochs [ 41.498352] RIP: 0010:[<ffffffff813ad1e2>] [<ffffffff813ad1e2>] replay_one_buffer+0x141/0x29b [ 41.498366] RSP: 0000:ffff880006fcf928 EFLAGS: 00010286 [ 41.498367] RAX: 00000000ffffffe4 RBX: ffff880006fcfaa8 RCX: 0000000060000000 [ 41.498369] RDX: 0000000000000008 RSI: 0000000000000020 RDI: 0000000000000000 [ 41.498370] RBP: ffff880006fcf9a8 R08: 00000000ffffffe4 R09: ffff880006fcf6c8 [ 41.498371] R10: 0000000000000001 R11: ffff880006fcf958 R12: ffff880001f30560 [ 41.498373] R13: 0000000000000000 R14: ffff880002a7d120 R15: ffff880002b78000 [ 41.498374] FS: 0000000000000000(0000) GS:ffff880007200000(0063) knlGS:00000000f757d700 [ 41.498376] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [ 41.498377] CR2: 00000000083a3bb0 CR3: 00000000053f3000 CR4: 00000000000006f0 [ 41.498381] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.498385] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 41.498386] Process mount (pid: 1580, threadinfo ffff880006fce000, task ffff880000a0ae00) [ 41.498387] Stack: [ 41.498388] 0000000000001000 0000000000001000 0000160000000000 0000000900000000 [ 41.498391] ffff880002b79800 0000800000000000 000000000090b0ad 0000000000000001 [ 41.498393] 0000000000000000 ffff880006fcfa54 ffff880002a7d090 ffff880006fcfa54 [ 41.498395] Call Trace: [ 41.498402] [<ffffffff813a7e45>] walk_down_log_tree+0x1a9/0x35e [ 41.498404] [<ffffffff813a8265>] walk_log_tree+0x99/0x1ce [ 41.498407] [<ffffffff813aa32c>] btrfs_recover_log_trees+0x205/0x31b [ 41.498409] [<ffffffff813ad0a1>] ? add_inode_ref+0x80e/0x80e [ 41.498412] [<ffffffff8137df3b>] open_ctree+0x1492/0x184f [ 41.498419] [<ffffffff8135f269>] btrfs_mount+0x382/0x525 [ 41.498429] [<ffffffff810fe530>] ? pcpu_next_pop+0x38/0x45 [ 41.498431] [<ffffffff810ff5a4>] ? pcpu_alloc+0x87b/0x8c5 [ 41.498438] [<ffffffff8114cbef>] ? alloc_vfsmnt+0x9e/0x187 [ 41.498444] [<ffffffff811380d9>] mount_fs+0x6b/0x14f [ 41.498447] [<ffffffff810ff609>] ? __alloc_percpu+0xb/0xd [ 41.498449] [<ffffffff8114e34d>] vfs_kern_mount+0x62/0xcf [ 41.498451] [<ffffffff8114e42b>] do_kern_mount+0x48/0xd8 [ 41.498453] [<ffffffff8114ebad>] do_mount+0x6f2/0x755 [ 41.498456] [<ffffffff810fb4ff>] ? memdup_user+0x48/0x68 [ 41.498459] [<ffffffff810fb558>] ? strndup_user+0x39/0x4e [ 41.498463] [<ffffffff81171577>] compat_sys_mount+0x213/0x24d [ 41.498467] [<ffffffff8170c729>] ia32_do_call+0x13/0x13 [ 41.498468] Code: fe e8 51 c9 ff ff 85 c0 74 04 0f 0b eb fe 48 8b 7b 20 4c 8d 4d b0 45 89 e8 4c 89 e1 4c 89 f2 4c 89 fe e8 1c dc ff ff 85 c0 74 04 <0f> 0b eb fe 81 7d ac 00 80 00 00 75 18 48 8b 7b 20 48 8b 55 b0 [ 41.498484] RIP [<ffffffff813ad1e2>] replay_one_buffer+0x141/0x29b [ 41.498486] RSP <ffff880006fcf928> [ 41.498489] ---[ end trace b03c7e7060c0017c ]--- -o recovery,ro didn't help btrfs-zero-log didn't help -o recovery,ro,clear_cache after btrfs-zero-log worked Is the image of any use or should I just delete it? Thanks Michael Raskin -- 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
