Hello, my btrfs filesystem was not mountable anymore after a loss of power:
kernel BUG at fs/btrfs/free-space-cache.c:1567! invalid opcode: 0000 [#1] SMP Modules linked in: btrfs libcrc32c xor zlib_deflate raid6_pq i915(+) i2c_algo_bit drm_kms_helper drm i2c_core video uinput CPU 3 Pid: 147, comm: mount Not tainted 3.9.1-301.fc19.x86_64 #1 LENOVO 4290W4H/4290W4H RIP: 0010:[<ffffffffa01c5984>] [<ffffffffa01c5984>] remove_from_bitmap+0x1f4/0x210 [btrfs] RSP: 0018:ffff88020fddd698 EFLAGS: 00010287 RAX: 0000001454248000 RBX: ffff880211399180 RCX: 0000001454253000 RDX: 0000000000013000 RSI: 00000000000051c0 RDI: 0000000000002e40 RBP: ffff88020fddd6e8 R08: ffff88020fecf5c8 R09: 0000001459400000 R10: ffff8802124ce240 R11: ffff880211399198 R12: ffff880210025240 R13: ffff88020fddd708 R14: ffff88020fddd700 R15: ffff8802113991a8 FS: 00007f019f213880(0000) GS:ffff88021e2c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4cdd4223f0 CR3: 000000020ff03000 CR4: 00000000000407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process mount (pid: 147, threadinfo ffff88020fddc000, task ffff8802100b4650) Stack: ffff88020fddd6e8 0000001459400000 ffff880210025264 0000001454253000 0000000000013000 ffff880210025240 ffff880210025264 0000000000000000 ffff880210025248 ffff88020ff4ec00 ffff88020fddd738 ffffffffa01c714b Call Trace: [<ffffffffa01c714b>] btrfs_remove_free_space+0x5b/0x290 [btrfs] [<ffffffff810810e0>] ? wake_up_bit+0x30/0x30 [<ffffffffa0176bff>] btrfs_alloc_logged_file_extent+0x1af/0x1d0 [btrfs] [<ffffffffa0162e86>] ? btrfs_free_path+0x26/0x30 [btrfs] [<ffffffffa01c1ef7>] replay_one_extent+0x607/0x690 [btrfs] [<ffffffffa01c224b>] replay_one_buffer+0x2cb/0x390 [btrfs] [<ffffffffa01a77b4>] ? alloc_extent_buffer+0x94/0x3f0 [btrfs] [<ffffffffa01bd484>] walk_down_log_tree+0x224/0x410 [btrfs] [<ffffffffa01bd95f>] walk_log_tree+0xbf/0x1f0 [btrfs] [<ffffffffa01c43c1>] btrfs_recover_log_trees+0x1f1/0x360 [btrfs] [<ffffffffa01c1f80>] ? replay_one_extent+0x690/0x690 [btrfs] [<ffffffffa0186a1b>] open_ctree+0x18eb/0x1f90 [btrfs] [<ffffffff812dac54>] ? disk_name+0x54/0xb0 [<ffffffffa015f94e>] btrfs_mount+0x5ce/0x6c0 [btrfs] [<ffffffff8129525d>] ? selinux_sb_copy_data+0x14d/0x220 [<ffffffff8119d1a9>] mount_fs+0x39/0x1b0 [<ffffffff811b635f>] vfs_kern_mount+0x5f/0xf0 [<ffffffffa015f4fc>] btrfs_mount+0x17c/0x6c0 [btrfs] [<ffffffff8129525d>] ? selinux_sb_copy_data+0x14d/0x220 [<ffffffff8119d1a9>] mount_fs+0x39/0x1b0 [<ffffffff811b635f>] vfs_kern_mount+0x5f/0xf0 [<ffffffff811b862e>] do_mount+0x23e/0xa20 [<ffffffff811b8276>] ? copy_mount_options+0x36/0x170 [<ffffffff811b8e93>] sys_mount+0x83/0xc0 [<ffffffff8164db19>] system_call_fastpath+0x16/0x1b Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 40 00 31 c0 48 83 7b 20 00 75 e4 48 89 de 4c 89 e7 89 45 c0 e8 b1 ed ff ff 8b 45 c0 eb d1 <0f> 0b e8 69 a4 02 00 0f 1f 44 00 00 e8 59 a4 02 00 66 66 2e 0f RIP [<ffffffffa01c5984>] remove_from_bitmap+0x1f4/0x210 [btrfs] RSP <ffff88020fddd698> Mounting the fs with "-o recovery,ro", and using btrfsck did not work. btrfsck segfaulted, but I can not provide the error message. btrfs-zero-log allowed me to mount the fs again. BR, Philipp Dreimann -- 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
