[openib-general] nfsrdma server stop responding,
Vu Pham
vuhuong at mellanox.com
Tue Dec 12 11:25:01 PST 2006
James Lentini wrote:
> It appears that one or more of the receive work requests is completing
> in error. The crash occurs when the server attempts to cleanup the
> buffer associated with the work request.
>
> I'd like to know why receives are failing. What is the error? Do your
> logs contain the printk on net/sunrpc/svc_rdma_recvfrom.c:522
> "svcrdma: bad WR completion..."? If they do not, you can turn on
> SVCRDMA_DEBUG (echo 4096 > /proc/sys/sunrpc/rpc_debug).
>
Yes, this error message is original in my log messages.202
and messages.202.1
see below
-vu
>>> ------------------------------------------------------------------------
>>>
>>> <snip>
>>>
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81012596b800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81012596bc00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17c00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7de000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7de400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7de800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7dec00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39c00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e4cf000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e4cf400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e4cf400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: ----------- [cut here ] --------- [please
>>> bite here ] ---------
>>> Dec 12 01:09:30 ibd202 kernel: Kernel BUG at include/linux/mm.h:300
>>> Dec 12 01:09:30 ibd202 kernel: invalid opcode: 0000 [1] SMP Dec 12 01:09:30
>>> ibd202 kernel: CPU 1 Dec 12 01:09:30 ibd202 kernel: Modules linked in: nfsd
>>> exportfs lockd nfs_acl ipv6 autofs4 sunrpc rdma_cm ib_addr dm_mirror dm_mod
>>> button battery asus_acpi ac uhci_hcd ehci_hcd i2c_i801 i2c_core ib_mthca
>>> shpchp ib_ipoib ib_umad ib_ucm ib_uverbs ib_cm ib_sa ib_mad ib_core e1000
>>> floppy ext3 jbd megaraid_sas sd_mod scsi_mod
>>> Dec 12 01:09:30 ibd202 kernel: Pid: 4343, comm: nfsd Not tainted 2.6.18.5 #1
>>> Dec 12 01:09:30 ibd202 kernel: RIP: 0010:[<ffffffff8025892b>]
>>> [<ffffffff8025892b>] put_page+0x13/0x2e
>>> Dec 12 01:09:30 ibd202 kernel: RSP: 0018:ffff81023fd11b08 EFLAGS: 00010246
>>> Dec 12 01:09:30 ibd202 kernel: RAX: 0000000000000000 RBX: 0000000000000001
>>> RCX: 0000000000006a53
>>> Dec 12 01:09:30 ibd202 kernel: RDX: 00000000ffffff01 RSI: 0000000000000001
>>> RDI: ffff81024fc3dec0
>>> Dec 12 01:09:30 ibd202 kernel: RBP: ffff81023e4cf400 R08: 0000000000000001
>>> R09: 0000000000000000
>>> Dec 12 01:09:30 ibd202 kernel: R10: 0000000000000000 R11: ffffffff88185ac8
>>> R12: ffff810240fb3800
>>> Dec 12 01:09:30 ibd202 kernel: R13: ffff810240fb3800 R14: ffff81023d045400
>>> R15: 00000000000dbba0
>>> Dec 12 01:09:30 ibd202 kernel: FS: 00002ad030296b00(0000)
>>> GS:ffff81024688eac0(0000) knlGS:0000000000000000
>>> Dec 12 01:09:30 ibd202 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
>>> 000000008005003b
>>> Dec 12 01:09:30 ibd202 kernel: CR2: 00002b70add7aad8 CR3: 000000023ebd3000
>>> CR4: 00000000000006e0
>>> Dec 12 01:09:30 ibd202 kernel: Process nfsd (pid: 4343, threadinfo
>>> ffff81023fd10000, task ffff810246562840)
>>> Dec 12 01:09:30 ibd202 kernel: Stack: ffffffff8817b2fb ffff810240fb39b8
>>> 0000000000000000 ffff81024172c5b0
>>> Dec 12 01:09:30 ibd202 kernel: ffffffff8817ec67 ffff81023cda7000
>>> ffffffff8817b2a8 0000000000000000
>>> Dec 12 01:09:30 ibd202 kernel: ffff81023fd11ca0 ffff81023fd11b80
>>> 0000000000000001 ffff81023cda7000
>>> Dec 12 01:09:30 ibd202 kernel: Call Trace:
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817b2fb>]
>>> :sunrpc:svc_rdma_put_context+0x37/0xb5
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817ec67>]
>>> :sunrpc:svc_rdma_recvfrom+0x58f/0x1150
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817b2a8>]
>>> :sunrpc:svc_rdma_get_context+0x10c/0x128
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817d5b8>]
>>> :sunrpc:send_write+0x200/0x22c
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80254954>]
>>> generic_file_readv+0x8e/0xa7
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8025ba92>]
>>> zone_statistics+0x40/0x70
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80224401>]
>>> find_busiest_group+0x21f/0x66f
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8042a2e9>]
>>> _spin_unlock_irq+0x6/0xa
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff804285a3>] thread_return+0x64/0xec
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8042a259>]
>>> _spin_lock_irqsave+0x9/0xe
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80233574>]
>>> lock_timer_base+0x1b/0x3c
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80233776>]
>>> try_to_del_timer_sync+0x4a/0x51
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80233789>] del_timer_sync+0xc/0x16
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80428f6a>]
>>> schedule_timeout+0x92/0xad
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff88174070>]
>>> :sunrpc:svc_recv+0x3c5/0x4be
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80225264>]
>>> default_wake_function+0x0/0xe
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80225264>]
>>> default_wake_function+0x0/0xe
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff882042fa>] :nfsd:nfsd+0x0/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff88204407>] :nfsd:nfsd+0x10d/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8020a4ac>] child_rip+0xa/0x12
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff882042fa>] :nfsd:nfsd+0x0/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff882042fa>] :nfsd:nfsd+0x0/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8020a4a2>] child_rip+0x0/0x12
>>> Dec 12 01:09:30 ibd202 kernel: Dec 12 01:09:30 ibd202 kernel: Dec 12
>>> 01:09:30 ibd202 kernel: Code: 0f 0b 68 16 4d 45 80 c2 2c 01 f0 ff 4f 08 0f
>>> 94 c0 84 c0 74 Dec 12 01:09:30 ibd202 kernel: RIP [<ffffffff8025892b>]
>>> put_page+0x13/0x2e
>>> Dec 12 01:09:30 ibd202 kernel: RSP <ffff81023fd11b08>
>>> Dec 12 01:09:30 ibd202 kernel: <4>nfsd: terminating on error 22
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81012596b800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81012596bc00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff810144c17c00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7de000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7de400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7de800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e7dec00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39800, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023dd39c00, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e4cf000, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e4cf400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: svcrdma: bad WR completion
>>> Dec 12 01:09:30 ibd202 kernel: ctxt=ffff81023e4cf400, count=1 on
>>> xprt=ffff810240fb3800, rqstp=ffff81023d045400, status=5
>>> Dec 12 01:09:30 ibd202 kernel: ----------- [cut here ] --------- [please
>>> bite here ] ---------
>>> Dec 12 01:09:30 ibd202 kernel: Kernel BUG at include/linux/mm.h:300
>>> Dec 12 01:09:30 ibd202 kernel: invalid opcode: 0000 [1] SMP Dec 12 01:09:30
>>> ibd202 kernel: CPU 1 Dec 12 01:09:30 ibd202 kernel: Modules linked in: nfsd
>>> exportfs lockd nfs_acl ipv6 autofs4 sunrpc rdma_cm ib_addr dm_mirror dm_mod
>>> button battery asus_acpi ac uhci_hcd ehci_hcd i2c_i801 i2c_core ib_mthca
>>> shpchp ib_ipoib ib_umad ib_ucm ib_uverbs ib_cm ib_sa ib_mad ib_core e1000
>>> floppy ext3 jbd megaraid_sas sd_mod scsi_mod
>>> Dec 12 01:09:30 ibd202 kernel: Pid: 4343, comm: nfsd Not tainted 2.6.18.5 #1
>>> Dec 12 01:09:30 ibd202 kernel: RIP: 0010:[<ffffffff8025892b>]
>>> [<ffffffff8025892b>] put_page+0x13/0x2e
>>> Dec 12 01:09:30 ibd202 kernel: RSP: 0018:ffff81023fd11b08 EFLAGS: 00010246
>>> Dec 12 01:09:30 ibd202 kernel: RAX: 0000000000000000 RBX: 0000000000000001
>>> RCX: 0000000000006a53
>>> Dec 12 01:09:30 ibd202 kernel: RDX: 00000000ffffff01 RSI: 0000000000000001
>>> RDI: ffff81024fc3dec0
>>> Dec 12 01:09:30 ibd202 kernel: RBP: ffff81023e4cf400 R08: 0000000000000001
>>> R09: 0000000000000000
>>> Dec 12 01:09:30 ibd202 kernel: R10: 0000000000000000 R11: ffffffff88185ac8
>>> R12: ffff810240fb3800
>>> Dec 12 01:09:30 ibd202 kernel: R13: ffff810240fb3800 R14: ffff81023d045400
>>> R15: 00000000000dbba0
>>> Dec 12 01:09:30 ibd202 kernel: FS: 00002ad030296b00(0000)
>>> GS:ffff81024688eac0(0000) knlGS:0000000000000000
>>> Dec 12 01:09:30 ibd202 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
>>> 000000008005003b
>>> Dec 12 01:09:30 ibd202 kernel: CR2: 00002b70add7aad8 CR3: 000000023ebd3000
>>> CR4: 00000000000006e0
>>> Dec 12 01:09:30 ibd202 kernel: Process nfsd (pid: 4343, threadinfo
>>> ffff81023fd10000, task ffff810246562840)
>>> Dec 12 01:09:30 ibd202 kernel: Stack: ffffffff8817b2fb ffff810240fb39b8
>>> 0000000000000000 ffff81024172c5b0
>>> Dec 12 01:09:30 ibd202 kernel: ffffffff8817ec67 ffff81023cda7000
>>> ffffffff8817b2a8 0000000000000000
>>> Dec 12 01:09:30 ibd202 kernel: ffff81023fd11ca0 ffff81023fd11b80
>>> 0000000000000001 ffff81023cda7000
>>> Dec 12 01:09:30 ibd202 kernel: Call Trace:
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817b2fb>]
>>> :sunrpc:svc_rdma_put_context+0x37/0xb5
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817ec67>]
>>> :sunrpc:svc_rdma_recvfrom+0x58f/0x1150
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817b2a8>]
>>> :sunrpc:svc_rdma_get_context+0x10c/0x128
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8817d5b8>]
>>> :sunrpc:send_write+0x200/0x22c
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80254954>]
>>> generic_file_readv+0x8e/0xa7
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8025ba92>]
>>> zone_statistics+0x40/0x70
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80224401>]
>>> find_busiest_group+0x21f/0x66f
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8042a2e9>]
>>> _spin_unlock_irq+0x6/0xa
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff804285a3>] thread_return+0x64/0xec
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8042a259>]
>>> _spin_lock_irqsave+0x9/0xe
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80233574>]
>>> lock_timer_base+0x1b/0x3c
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80233776>]
>>> try_to_del_timer_sync+0x4a/0x51
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80233789>] del_timer_sync+0xc/0x16
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80428f6a>]
>>> schedule_timeout+0x92/0xad
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff88174070>]
>>> :sunrpc:svc_recv+0x3c5/0x4be
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80225264>]
>>> default_wake_function+0x0/0xe
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff80225264>]
>>> default_wake_function+0x0/0xe
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff882042fa>] :nfsd:nfsd+0x0/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff88204407>] :nfsd:nfsd+0x10d/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8020a4ac>] child_rip+0xa/0x12
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff882042fa>] :nfsd:nfsd+0x0/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff882042fa>] :nfsd:nfsd+0x0/0x359
>>> Dec 12 01:09:30 ibd202 kernel: [<ffffffff8020a4a2>] child_rip+0x0/0x12
>>> Dec 12 01:09:30 ibd202 kernel: Dec 12 01:09:30 ibd202 kernel: Dec 12
>>> 01:09:30 ibd202 kernel: Code: 0f 0b 68 16 4d 45 80 c2 2c 01 f0 ff 4f 08 0f
>>> 94 c0 84 c0 74 Dec 12 01:09:30 ibd202 kernel: RIP [<ffffffff8025892b>]
>>> put_page+0x13/0x2e
>>> Dec 12 01:09:30 ibd202 kernel: RSP <ffff81023fd11b08>
>>> Dec 12 01:09:30 ibd202 kernel: <4>nfsd: terminating on error 22
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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