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Date: Fri, 7 Jan 2011 09:25:37 +0800
From: Drunkard Zhang <gongfan193@...il.com>
To: Chris Mason <chris.mason@...cle.com>, linux-btrfs@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: 2.6.37: Bug on btrfs while umount
Remote terminal hung while umount, here's dmesg:
[50010.838804] ------------[ cut here ]------------
[50010.838931] kernel BUG at fs/btrfs/inode.c:1616!
[50010.839053] invalid opcode: 0000 [#1] PREEMPT SMP
[50010.839185] last sysfs file: /sys/module/nf_conntrack/parameters/hashsize
[50010.839307] CPU 0
[50010.839313] Modules linked in: ipt_addrtype btrfs k10temp
[50010.839541]
[50010.839653] Pid: 1681, comm: btrfs-endio-wri Not tainted 2.6.37 #1
3CESL /3CESL
[50010.839667] RIP: 0010:[<ffffffffa0027d9a>] [<ffffffffa0027d9a>]
insert_reserved_file_extent+0x8d/0x212 [btrfs]
[50010.839667] RSP: 0018:ffff8807efaa9c40 EFLAGS: 00010286
[50010.839667] RAX: 00000000ffffffe4 RBX: ffff8807f73f37f0 RCX: ffffffffa0012555
[50010.839667] RDX: 0000000000000000 RSI: ffffea001bc124c0 RDI: ffff8807ee148cf0
[50010.839667] RBP: ffff8807efaa9cd0 R08: ffff8807efaa9b00 R09: ffff8807efaa99b0
[50010.839667] R10: ffff8807ee0a8090 R11: 0000000000000090 R12: ffff8807ee0a9040
[50010.839667] R13: ffff8807ee0a8000 R14: ffff8807ee148cf0 R15: 0000000400000000
[50010.839667] FS: 00007f9b5c4e3700(0000) GS:ffff8800c7c00000(0000)
knlGS:0000000000000000
[50010.839667] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[50010.839667] CR2: 0000000002076f80 CR3: 00000007efaaa000 CR4: 00000000000006f0
[50010.839667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[50010.839667] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[50010.839667] Process btrfs-endio-wri (pid: 1681, threadinfo
ffff8807efaa8000, task ffff8807ef1e72c0)
[50010.839667] Stack:
[50010.839667] 00000000000fffff 0000000000100000 0000000000100000
0000000001100000
[50010.839667] ffff8807ee0a9040 ffff8807f6d02000 ffff8807c36002d0
ffff8807ee0a9040
[50010.839667] ffff8807efaa9cc0 ffffffffa0027821 ffff8807efaa9d18
ffff8807f73f37f0
[50010.839667] Call Trace:
[50010.839667] [<ffffffffa0027821>] ? start_transaction+0x1a1/0x1d0 [btrfs]
[50010.839667] [<ffffffffa002b65d>] btrfs_finish_ordered_io+0x1fa/0x2d4 [btrfs]
[50010.839667] [<ffffffffa002b750>]
btrfs_writepage_end_io_hook+0x19/0x1b [btrfs]
[50010.839667] [<ffffffffa00429a1>] end_bio_extent_writepage+0xa5/0x15b [btrfs]
[50010.839667] [<ffffffff8111734d>] bio_endio+0x2c/0x2e
[50010.839667] [<ffffffffa0023ad5>] end_workqueue_fn+0x10e/0x11a [btrfs]
[50010.839667] [<ffffffffa004a876>] worker_loop+0x19c/0x4db [btrfs]
[50010.839667] [<ffffffffa004a6da>] ? worker_loop+0x0/0x4db [btrfs]
[50010.839667] [<ffffffff81057779>] kthread+0x81/0x89
[50010.839667] [<ffffffff81003914>] kernel_thread_helper+0x4/0x10
[50010.839667] [<ffffffff810576f8>] ? kthread+0x0/0x89
[50010.839667] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10
[50010.839667] Code: 80 88 88 00 00 00 08 4c 8d 45 c0 45 31 c9 48 8b
8d 78 ff ff ff 48 8b 7d 90 4c 89 fa 4c 89 f6 4c 01 f9 e8 81 c2 00 00
85 c0 74 04 <0f> 0b eb fe 49 8b 46 50 48 8b 75 98 4c 8d 45 cc 48 8b 7d
90 48
[50010.839667] RIP [<ffffffffa0027d9a>]
insert_reserved_file_extent+0x8d/0x212 [btrfs]
[50010.839667] RSP <ffff8807efaa9c40>
[50010.849041] ---[ end trace c5fabb63a425946d ]---
Related info:
squid75 ~ # uname -a
Linux squid75 2.6.37 #1 SMP PREEMPT Thu Jan 6 00:56:39 CST 2011 x86_64
Quad-Core AMD Opteron(tm) Processor 2356 AuthenticAMD GNU/Linux
squid75 ~ # sdparm -i /dev/sd[bc]
/dev/sdb: ATA INTEL SSDSA2M080 2CV1
Device identification VPD page:
Addressed logical unit:
designator type: vendor specific [0x0], code set: ASCII
00 43 56 50 4f 30 33 39 32 30 33 50 52 30 38 30 4a CVPO039203PR080J
10 47 4e 20 20 GN
designator type: T10 vendor identification, code set: ASCII
vendor id: ATA
vendor specific: INTEL SSDSA2M080G2GC
CVPO039203PR080JGN
/dev/sdc: ATA INTEL SSDSA2M080 2CV1
Device identification VPD page:
Addressed logical unit:
designator type: vendor specific [0x0], code set: ASCII
00 43 56 50 4f 30 33 39 33 30 31 4a 53 30 38 30 4a CVPO039301JS080J
10 47 4e 20 20 GN
designator type: T10 vendor identification, code set: ASCII
vendor id: ATA
vendor specific: INTEL SSDSA2M080G2GC
CVPO039301JS080JGN
squid75 ~ # hdparm -i /dev/sd[bc]
/dev/sdb:
Model=INTEL SSDSA2M080G2GC, FwRev=2CV102HD, SerialNo=CVPO039203PR080JGN
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=2
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7
* signifies the current active mode
/dev/sdc:
Model=INTEL SSDSA2M080G2GC, FwRev=2CV102HD, SerialNo=CVPO039301JS080JGN
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=2
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7
* signifies the current active mode
[striped useless blank lines]
Here's `df` while hung up:
/dev/sdb1 9.9G 5.6G 3.8G 60% /mnt/b
/dev/sdc1 75G 2.1M 73G 1% /mnt/c
below is regular `df`:
/dev/sdb1 75G 2.1M 73G 1% /mnt/b
/dev/sdc1 75G 2.1M 73G 1% /mnt/c
The kernel is static compiled except some mods. I can not reproduce it any more.
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