----- Original Message ----- 
From: "David Chinner" <redacted>
To: "Haar János" <redacted>
Cc: "David Chinner" <redacted>; <redacted>;
[off-list ref]
Sent: Monday, January 08, 2007 12:14 AM
Subject: Re: xfslogd-spinlock bug?

On Wed, Dec 27, 2006 at 01:58:06PM +0100, Haar János wrote:

quoted

Hello,

----- Original Message ----- 
From: "David Chinner" <redacted>
To: "David Chinner" <redacted>
Cc: "Haar János" <redacted>; <redacted>;
[off-list ref]
Sent: Tuesday, December 19, 2006 5:47 AM
Subject: Re: xfslogd-spinlock bug?

quoted

On Tue, Dec 19, 2006 at 01:52:29PM +1100, David Chinner wrote:

The filesystem was being shutdown so xfs_inode_item_destroy() just
frees the inode log item without removing it from the AIL. I'll fix

that,

quoted

quoted

and see if i have any luck....

So I'd still try that patch i sent in the previous email...

I still using the patch, but didnt shows any messages at this point.

I'v got 3 crash/reboot, but 2 causes nbd disconneted, and this one:

Dec 27 13:41:29 dy-base BUG: warning at
kernel/mutex.c:220/__mutex_unlock_common_slowpath()
Dec 27 13:41:29 dy-base Unable to handle kernel paging request at
0000000066604480 RIP:
Dec 27 13:41:29 dy-base  [<ffffffff80222c64>] resched_task+0x12/0x64
Dec 27 13:41:29 dy-base PGD 115246067 PUD 0
Dec 27 13:41:29 dy-base Oops: 0000 [1] SMP
Dec 27 13:41:29 dy-base CPU 1
Dec 27 13:41:29 dy-base Modules linked in: nbd rd netconsole e1000 video
Dec 27 13:41:29 dy-base Pid: 4069, comm: httpd Not tainted 2.6.19 #3
Dec 27 13:41:29 dy-base RIP: 0010:[<ffffffff80222c64>]

[<ffffffff80222c64>]

quoted

resched_task+0x12/0x64
Dec 27 13:41:29 dy-base RSP: 0018:ffff810105c01b78  EFLAGS: 00010083
Dec 27 13:41:29 dy-base RAX: ffffffff807d5800 RBX: 00001749fd97c214 RCX:

Different corruption in RBX here. Looks like semi-random garbage there.
I wonder - what's the mac and ip address(es) of your machine and nbd
servers?

dy-base:
eth0      Link encap:Ethernet  HWaddr 00:90:27:A2:7B:8B
eth0:1    Link encap:Ethernet  HWaddr 00:90:27:A2:7B:8B
eth0:2    Link encap:Ethernet  HWaddr 00:90:27:A2:7B:8B
eth1      Link encap:Ethernet  HWaddr 00:07:E9:32:E6:D8
eth1:1    Link encap:Ethernet  HWaddr 00:07:E9:32:E6:D8
eth1:2    Link encap:Ethernet  HWaddr 00:07:E9:32:E6:D8
eth2      Link encap:Ethernet  HWaddr 00:07:E9:32:E6:D9

node1-4:

00:0E:0C:A0:E5:7E
00:0E:0C:A0:EF:5E
00:0E:0C:A0:E9:58
00:0E:0C:A0:EF:A3

Some new stuff:
Jan  8 18:11:16 dy-base BUG: warning at
kernel/mutex.c:220/__mutex_unlock_common_slowpath()
Jan  8 18:11:16 dy-base Unable to handle kernel NULL pointer dereference at
0000000000000008 RIP:
Jan  8 18:11:16 dy-base  [<ffffffff80222c74>] resched_task+0x1a/0x64
Jan  8 18:11:16 dy-base PGD 9859d067 PUD 4e347067 PMD 0
Jan  8 18:11:16 dy-base Oops: 0000 [1] SMP
Jan  8 18:11:16 dy-base CPU 3
Jan  8 18:11:16 dy-base Modules linked in: nbd rd netconsole e1000
Jan  8 18:11:16 dy-base Pid: 3471, comm: ls Not tainted 2.6.19 #4
Jan  8 18:11:16 dy-base RIP: 0010:[<ffffffff80222c74>]  [<ffffffff80222c74>]
resched_task+0x1a/0x64
Jan  8 18:11:16 dy-base RSP: 0000:ffff81011fd1fb10  EFLAGS: 00010097
Jan  8 18:11:16 dy-base RAX: ffffffff80810800 RBX: 000004f0e2850659 RCX:
ffff81010c0a2000
Jan  8 18:11:16 dy-base RDX: 0000000000000000 RSI: ffff81000583c368 RDI:
ffff81002b809830
Jan  8 18:11:16 dy-base RBP: ffff81011fd1fb10 R08: 0000000000000000 R09:
0000000000000080
Jan  8 18:11:16 dy-base R10: 0000000000000080 R11: ffff81000584d280 R12:
ffff8100d852a7b0
Jan  8 18:11:16 dy-base R13: 0000000000000003 R14: 0000000000000001 R15:
0000000000000001
Jan  8 18:11:16 dy-base FS:  00002b69786c8a90(0000)
GS:ffff81011fcb98c0(0000) knlGS:0000000000000000
Jan  8 18:11:16 dy-base CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jan  8 18:11:16 dy-base CR2: 0000000000000008 CR3: 0000000056ec5000 CR4:
00000000000006e0
Jan  8 18:11:16 dy-base Process ls (pid: 3471, threadinfo ffff810080d80000,
task ffff8100dcdea770)
Jan  8 18:11:16 dy-base Stack:  ffff81011fd1fb90 ffffffff80223f3f
ffff81011fd1fb50 0000000000000282
Jan  8 18:11:16 dy-base  0000000000000001 0000000000000001 ffff81000583ba00
00000003032ca4b8
Jan  8 18:11:16 dy-base  000000000000000a 0000000000000082 ffff810103539d00
ffff810013867bf8
Jan  8 18:11:16 dy-base Call Trace:
Jan  8 18:11:16 dy-base  <IRQ>  [<ffffffff80223f3f>]
try_to_wake_up+0x3a7/0x3dc
Jan  8 18:11:16 dy-base  [<ffffffff80223f81>] default_wake_function+0xd/0xf
Jan  8 18:11:16 dy-base  [<ffffffff8023c81d>]
autoremove_wake_function+0x11/0x38
Jan  8 18:11:16 dy-base  [<ffffffff802225b1>] __wake_up_common+0x3e/0x68
Jan  8 18:11:16 dy-base  [<ffffffff80222ac9>] __wake_up+0x38/0x50
Jan  8 18:11:16 dy-base  [<ffffffff80569d1c>]
sk_stream_write_space+0x5d/0x83
Jan  8 18:11:16 dy-base  [<ffffffff80591afd>] tcp_check_space+0x8f/0xcd
Jan  8 18:11:16 dy-base  [<ffffffff80596de0>]
tcp_rcv_established+0x116/0x76e
Jan  8 18:11:16 dy-base  [<ffffffff8059ce41>] tcp_v4_do_rcv+0x2d/0x322
Jan  8 18:11:16 dy-base  [<ffffffff8059f59e>] tcp_v4_rcv+0x8bb/0x925
Jan  8 18:11:16 dy-base  [<ffffffff80583b24>]
ip_local_deliver_finish+0x0/0x1ce
Jan  8 18:11:16 dy-base  [<ffffffff805843e6>] ip_local_deliver+0x172/0x238
Jan  8 18:11:16 dy-base  [<ffffffff8058422c>] ip_rcv+0x44f/0x497
Jan  8 18:11:16 dy-base  [<ffffffff88004bbc>]
:e1000:e1000_alloc_rx_buffers+0x1e7/0x2cb
Jan  8 18:11:16 dy-base  [<ffffffff8056c0a6>] netif_receive_skb+0x1ee/0x255
Jan  8 18:11:16 dy-base  [<ffffffff8056de0c>] process_backlog+0x8a/0x10f
Jan  8 18:11:16 dy-base  [<ffffffff8056e060>] net_rx_action+0xa9/0x16e
Jan  8 18:11:16 dy-base  [<ffffffff8022edf9>] __do_softirq+0x57/0xc7
Jan  8 18:11:16 dy-base  [<ffffffff8020aa1c>] call_softirq+0x1c/0x28
Jan  8 18:11:16 dy-base  [<ffffffff8020c68a>] do_softirq+0x34/0x87
Jan  8 18:11:16 dy-base  [<ffffffff8022ed0f>] irq_exit+0x3f/0x41
Jan  8 18:11:16 dy-base  [<ffffffff8020c786>] do_IRQ+0xa9/0xc7
Jan  8 18:11:16 dy-base  [<ffffffff80209e11>] ret_from_intr+0x0/0xa
Jan  8 18:11:16 dy-base  <EOI>
Jan  8 18:11:16 dy-base
Jan  8 18:11:16 dy-base Code: 48 03 42 08 8b 00 85 c0 7e 0a 0f 0b 68 ed 80
64 80 c2 f0 03
Jan  8 18:11:16 dy-base RIP  [<ffffffff80222c74>] resched_task+0x1a/0x64
Jan  8 18:11:16 dy-base  RSP <ffff81011fd1fb10>
Jan  8 18:11:16 dy-base CR2: 0000000000000008
Jan  8 18:11:16 dy-base  <0>Kernel panic - not syncing: Fatal exception
Jan  8 18:11:16 dy-base
Jan  8 18:11:16 dy-base Rebooting in 5 seconds..

(i have disabled the slab debuggint, because i need more perf.)

Thanks,
Janos

(i.e. I suspect this is a nbd problem, not an XFS problem)

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
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