On Mon, Jun 25, 2012 at 08:29:34PM +0200, Martin Steigerwald wrote:
> I got a X server / drm related crash or hard lockup. After I rebooted I
> tried to mount the BTRFS on my esata disk. It has big metadata
> (mkfs.btrfs -l 32768 -n 32768).
>
>
> I got:
>
> [ 43.764274] ata5: exception Emask 0x10 SAct 0x0 SErr 0x4050000 action 0xe frozen
> [ 43.764278] ata5: irq_stat 0x00000040, connection status changed
> [ 43.764281] ata5: SError: { PHYRdyChg CommWake DevExch }
> [ 43.764287] ata5: hard resetting link
> [ 46.978917] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 46.989402] ata5.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> [ 46.989407] ata5.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> [ 46.990609] ata5.00: ATA-8: Hitachi HTS545050B9A300, PB4OC60G, max UDMA/133
> [ 46.990613] ata5.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA
> [ 46.991925] ata5.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> [ 46.991930] ata5.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> [ 46.993155] ata5.00: configured for UDMA/133
> [ 47.003851] ata5: EH complete
> [ 47.003958] scsi 4:0:0:0: Direct-Access ATA Hitachi HTS54505 PB4O PQ: 0 ANSI: 5
> [ 47.004135] sd 4:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB)
> [ 47.004191] sd 4:0:0:0: [sdb] Write Protect is off
> [ 47.004194] sd 4:0:0:0: [sdb] Mode Sense: 00 3a 00 00
> [ 47.004218] sd 4:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [ 47.050154] sdb: sdb1
> [ 47.050390] sd 4:0:0:0: [sdb] Attached SCSI disk
> [ 58.100217] CPU1: Package power limit notification (total events = 1)
> [ 58.100220] CPU3: Package power limit notification (total events = 1)
> [ 58.100221] CPU2: Package power limit notification (total events = 1)
> [ 58.100225] CPU0: Package power limit notification (total events = 1)
> [ 58.103689] CPU1: Package power limit normal
> [ 58.103691] CPU3: Package power limit normal
> [ 58.103692] CPU2: Package power limit normal
> [ 58.103695] CPU0: Package power limit normal
> [ 249.200560] device label daten devid 1 transid 2194 /dev/sdb1
> [ 249.201186] btrfs: use lzo compression
> [ 249.201192] btrfs: disk space caching is enabled
> [ 249.241975] btrfs: bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 0, gen 0
> [ 251.620610] ------------[ cut here ]------------
> [ 251.620693] kernel BUG at fs/btrfs/inode.c:3758!
3756 if (root->fs_info->log_root_recovering) {
3757 BUG_ON(!test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
3758 &BTRFS_I(inode)->runtime_flags));
3759 goto no_delete;
3760 }
and it happened during log replay, as you found already, fixable by
running the zero-log utility. Another way is to mount read-only, this
skips log replay.
I think there could be a logic error, as this probably happens only
during log replay when the orphan bit is not in sync with link count,
but I saw that this should be handled in the fixup_inode_link_counts
call path. CCing Josef, if he has an idea.
> [ 251.620767] invalid opcode: 0000 [#1] PREEMPT SMP
> [ 251.620842] CPU 1
> [ 251.620960]
> [ 251.620988] Pid: 3430, comm: mount Tainted: G O 3.5.0-rc4-tp520 #1 LENOVO 42433WG/42433WG
> [ 251.621149] RIP: 0010:[<ffffffffa023a93f>] [<ffffffffa023a93f>] btrfs_evict_inode+0xcd/0x278 [btrfs]
> [ 251.621289] RSP: 0018:ffff880157033a58 EFLAGS: 00010246
> [ 251.621370] RAX: 0000000000000000 RBX: ffff8801c1747800 RCX: 000000000000001a
> [ 251.621477] RDX: 000000000000001a RSI: 0000000000000002 RDI: ffff880157032000
> [ 251.621584] RBP: ffff8800851c5d20 R08: ffff880157033978 R09: 0000000000000002
> [ 251.621691] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffa027a230
> [ 251.621799] R13: 0000000000008000 R14: 0000000000008000 R15: ffff8801c1740400
> [ 251.621907] FS: 00007ffa1402e7e0(0000) GS:ffff88021e240000(0000) knlGS:0000000000000000
> [ 251.622029] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 251.622116] CR2: ffffffffff600400 CR3: 000000014a97d000 CR4: 00000000000407e0
> [ 251.622224] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 251.622332] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 251.622440] Process mount (pid: 3430, threadinfo ffff880157032000, task ffff88015983be70)
> [ 251.622562] Stack:
> [ 251.622597] 0000000000000000 ffff8800851c5da8 ffff8800851c5d20 ffff8800851c5d20
> [ 251.622711] ffff8800851c5e18 ffffffffa027a230 ffff8800851c5d20 ffff8801c1742c00
> [ 251.622825] ffff8801c1740400 ffffffff8111787c ffff88020dca8cf0 ffff8801c1747800
> [ 251.622936] Call Trace:
> [ 251.622982] [<ffffffff8111787c>] ? evict+0xa3/0x153
> [ 251.623077] [<ffffffffa0260ef6>] ? fixup_inode_link_counts+0xd2/0xfb [btrfs]
> [ 251.623201] [<ffffffffa022ee3c>] ? btrfs_read_fs_root_no_name+0x92/0x24e [btrfs]
> [ 251.623331] [<ffffffffa0261db3>] ? btrfs_recover_log_trees+0x207/0x2dd [btrfs]
> [ 251.623458] [<ffffffffa0260a3b>] ? replay_one_extent+0x439/0x439 [btrfs]
> [ 251.623578] [<ffffffffa0230fac>] ? open_ctree+0x1354/0x1680 [btrfs]
> [ 251.627492] [<ffffffff811b60b0>] ? ida_get_new_above+0x16c/0x17d
> [ 251.631356] [<ffffffffa02153fa>] ? btrfs_mount+0x3cb/0x516 [btrfs]
> [ 251.635197] [<ffffffff810ef373>] ? alloc_pages_current+0xb2/0xcd
> [ 251.638971] [<ffffffff811078c9>] ? mount_fs+0x61/0x144
> [ 251.642736] [<ffffffff8111a390>] ? vfs_kern_mount+0x62/0xe3
> [ 251.646426] [<ffffffff8111aa2a>] ? do_kern_mount+0x49/0xdd
> [ 251.650039] [<ffffffff8111c20f>] ? do_mount+0x68a/0x710
> [ 251.653636] [<ffffffff8111c3b5>] ? sys_mount+0x80/0xba
> [ 251.657204] [<ffffffff813d53b9>] ? system_call_fastpath+0x16/0x1b
> [ 251.660791] Code: 00 48 83 ca ff 31 f6 48 89 ef e8 d8 05 01 00 48 8b 83 20 01 00 00 83 b8 40 0e 00 00 00 74 0e 48 8b 45 98 a8
> 20 0f 85 7b 01 00 00 <0f> 0b 83 7d 48 00 74 0f 83 bb f8 00 00 00 00 0f 84 66 01 00 00
> [ 251.668347] RIP [<ffffffffa023a93f>] btrfs_evict_inode+0xcd/0x278 [btrfs]
> [ 251.672204] RSP <ffff880157033a58>
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