Am 2023-12-04 20:12, schrieb dai.ngo@xxxxxxxxxx:
On 12/4/23 8:15 AM, Chuck Lever wrote:
On Mon, Dec 04, 2023 at 04:34:00PM +0100, Wolfgang Walter wrote:
Hello,
after upgrading from stable 6.1.63 to stable 6.6.3 our nfs-server
logged a
WARNING and then more and more clients hanged:
Dec 04 14:59:25 engel kernel: ------------[ cut here ]------------
Dec 04 14:59:25 engel kernel: WARNING: CPU: 17 PID: 8431 at
fs/nfsd/nfs4state.c:4919 nfsd_break_deleg_cb+0x174/0x190 [nfsd]
Dec 04 14:59:25 engel kernel: Modules linked in: cts rpcsec_gss_krb5
msr
8021q garp stp mrp llc binfmt_misc intel_rapl_msr intel_rapl_common
sb_edac
x86_pkg_temp_thermal intel_powerclamp coretemp kv>
Dec 04 14:59:25 engel kernel: enclosure sd_mod usbhid t10_pi hid
crc64_rocksoft crc64 crc_t10dif crct10dif_generic ixgbe ahci
xfrm_algo
xhci_pci libahci dca mdio_devres mpt3sas ehci_pci crct10dif_p>
Dec 04 14:59:25 engel kernel: CPU: 17 PID: 8431 Comm: nfsd Not
tainted
6.6.3-debian64.all+1.2 #1
Dec 04 14:59:25 engel kernel: Hardware name: Supermicro
X10DRi/X10DRI-T,
BIOS 1.1a 10/16/2015
Dec 04 14:59:25 engel kernel: RIP:
0010:nfsd_break_deleg_cb+0x174/0x190
[nfsd]
Dec 04 14:59:25 engel kernel: Code: 02 8c a4 c2 e9 ff fe ff ff 48 89
df be
01 00 00 00 e8 70 7c ed c2 48 8d bb 98 00 00 00 e8 b4 0e 01 00 84 c0
0f 85
2e ff ff ff <0f> 0b e9 27 ff ff ff be 02 00 00 0>
Dec 04 14:59:25 engel kernel: RSP: 0018:ffffbd57227c7a98 EFLAGS:
00010246
Dec 04 14:59:25 engel kernel: RAX: 0000000000000000 RBX:
ffff94a77356e200
RCX: 0000000000000000
Dec 04 14:59:25 engel kernel: RDX: ffff94a77356e2c8 RSI:
ffff94b78cf58000
RDI: 0000000000002000
Dec 04 14:59:25 engel kernel: RBP: ffff94a0392b3a34 R08:
ffffbd57227c7a80
R09: 0000000000000000
Dec 04 14:59:25 engel kernel: R10: ffff94a05f4a9440 R11:
0000000000000000
R12: ffff94b8e3995b00
Dec 04 14:59:25 engel kernel: R13: ffff94a0392b3a20 R14:
ffff94b8e3995b00
R15: 000000010eb733cd
Dec 04 14:59:25 engel kernel: FS: 0000000000000000(0000)
GS:ffff94b71fcc0000(0000) knlGS:0000000000000000
Dec 04 14:59:25 engel kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Dec 04 14:59:25 engel kernel: CR2: 00007f9ef8554000 CR3:
000000295e020003
CR4: 00000000001706e0
Dec 04 14:59:25 engel kernel: Call Trace:
Dec 04 14:59:25 engel kernel: <TASK>
Dec 04 14:59:25 engel kernel: ? nfsd_break_deleg_cb+0x174/0x190
[nfsd]
Dec 04 14:59:25 engel kernel: ? __warn+0x81/0x130
Dec 04 14:59:25 engel kernel: ? nfsd_break_deleg_cb+0x174/0x190
[nfsd]
Dec 04 14:59:25 engel kernel: ? report_bug+0x171/0x1a0
Dec 04 14:59:25 engel kernel: ? handle_bug+0x3c/0x80
Dec 04 14:59:25 engel kernel: ? exc_invalid_op+0x17/0x70
Dec 04 14:59:25 engel kernel: ? asm_exc_invalid_op+0x1a/0x20
Dec 04 14:59:25 engel kernel: ? nfsd_break_deleg_cb+0x174/0x190
[nfsd]
Dec 04 14:59:25 engel kernel: ? nfsd_break_deleg_cb+0x9a/0x190
[nfsd]
Dec 04 14:59:25 engel kernel: __break_lease+0x25c/0x720
Dec 04 14:59:25 engel kernel: __nfsd_open.isra.0+0xa9/0x1a0 [nfsd]
Dec 04 14:59:25 engel kernel: nfsd_file_do_acquire+0x4ca/0xc50
[nfsd]
Dec 04 14:59:25 engel kernel: nfs4_get_vfs_file+0x34c/0x3b0 [nfsd]
Dec 04 14:59:25 engel kernel: nfsd4_process_open2+0x42c/0x15d0
[nfsd]
Dec 04 14:59:25 engel kernel: ? nfsd_permission+0x63/0x100 [nfsd]
Dec 04 14:59:25 engel kernel: ? fh_verify+0x42e/0x720 [nfsd]
Dec 04 14:59:25 engel kernel: nfsd4_open+0x64a/0xc40 [nfsd]
Dec 04 14:59:25 engel kernel: ? nfsd4_encode_operation+0xa7/0x2b0
[nfsd]
Dec 04 14:59:25 engel kernel: nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 04 14:59:25 engel kernel: ? __pfx_nfsd+0x10/0x10 [nfsd]
Dec 04 14:59:25 engel kernel: nfsd_dispatch+0x7c/0x1b0 [nfsd]
Dec 04 14:59:25 engel kernel: svc_process_common+0x431/0x6e0
[sunrpc]
Dec 04 14:59:25 engel kernel: ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 04 14:59:25 engel kernel: ? __pfx_nfsd+0x10/0x10 [nfsd]
Dec 04 14:59:25 engel kernel: svc_process+0x131/0x180 [sunrpc]
Dec 04 14:59:25 engel kernel: nfsd+0x84/0xd0 [nfsd]
Dec 04 14:59:25 engel kernel: kthread+0xe5/0x120
Dec 04 14:59:25 engel kernel: ? __pfx_kthread+0x10/0x10
Dec 04 14:59:25 engel kernel: ret_from_fork+0x31/0x50
Dec 04 14:59:25 engel kernel: ? __pfx_kthread+0x10/0x10
Dec 04 14:59:25 engel kernel: ret_from_fork_asm+0x1b/0x30
Dec 04 14:59:25 engel kernel: </TASK>
Dec 04 14:59:25 engel kernel: ---[ end trace 0000000000000000 ]---
6.1. did not show such a problem.
Both are vanilla stable kernels (self-built).
Thank you for your report.
If you are able to bisect your server between v6.1 and v6.6, that
would help us narrow down the cause.
Dai, can you have a look at this?
The warning message indicates the callback work was not queued since
it was already queued. In this case we'll have taken an extra reference
to the stid that will never be put (see b95239ca4954a0), we should fix
this but I don't think this extra reference causing the client to hang.
It's hard to say what the root cause is without a core dump and/or some
network trace or a way to reproduce the problem. As Chuck mentioned,
it's
best to bisect the server to help us narrow down the cause.
Wolfgang, could you provide some additional info such as how often this
problem happens, under load?, problem reproducible?, number of clients
involved, type of NFS activities, etc.
I cannot reproduce it on our test server. Our fileserver run the new
kernel since friday, 2023-12-01. The problem occurred today.
* number of clients: about 300 to 400.
* we use kerberos krb5p
* only nfs4
I only saw it once (today), but we used 6.1 till friday. I downgraded
the server to 6.1. I think I cannot bisect the problem as I cannot
reproduce it on the testserver. I think load and a lot of clients are
needed - which means I there are a lot of our employees are affected.
One symptom was that new clients couldn't connect and more and more
clients seem to hang.
The server did not crash, you could still login. When rebooting nfsd
could not be stopped, though.
I overlooked earlier log entries:
Dec 4 11:42:27 engel kernel: [235320.039490] receive_cb_reply: Got
unrecognized reply: calldir 0x1 xpt_bc_xprt 000000005d610da5 xid
752a73b9
Dec 4 11:43:23 engel kernel: [235376.870705] receive_cb_reply: Got
unrecognized reply: calldir 0x1 xpt_bc_xprt 000000005d610da5 xid
7d2a73b9
Dec 4 13:55:15 engel kernel: [243288.670210] receive_cb_reply: Got
unrecognized reply: calldir 0x1 xpt_bc_xprt 00000000ca358149 xid
f1cc71b6
Dec 4 13:55:15 engel kernel: [243288.670788] receive_cb_reply: Got
unrecognized reply: calldir 0x1 xpt_bc_xprt 00000000ca358149 xid
f2cc71b6
Dec 4 13:57:29 engel kernel: [243421.785082] INFO: task nfsd:8491
blocked for more than 122 seconds.
Dec 4 13:57:29 engel kernel: [243421.785104] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:57:29 engel kernel: [243421.785113] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:57:29 engel kernel: [243421.785125] task:nfsd
state:D stack:0 pid:8491 ppid:2 flags:0x00004000
Dec 4 13:57:29 engel kernel: [243421.785130] Call Trace:
Dec 4 13:57:29 engel kernel: [243421.785132] <TASK>
Dec 4 13:57:29 engel kernel: [243421.785136] __schedule+0x3b8/0xb00
Dec 4 13:57:29 engel kernel: [243421.785146] schedule+0x5e/0xd0
Dec 4 13:57:29 engel kernel: [243421.785148]
schedule_timeout+0x147/0x160
Dec 4 13:57:29 engel kernel: [243421.785155] ?
__pfx_sha512_transform_rorx+0x10/0x10 [sha512_ssse3]
Dec 4 13:57:29 engel kernel: [243421.785162]
wait_for_completion+0x8a/0x160
Dec 4 13:57:29 engel kernel: [243421.785166]
__flush_workqueue+0x140/0x410
Dec 4 13:57:29 engel kernel: [243421.785174]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.785288]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.785334] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.785373] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.785415]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:57:29 engel kernel: [243421.785492] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.785534] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.785572] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:57:29 engel kernel: [243421.785630] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.785672] kthread+0xe5/0x120
Dec 4 13:57:29 engel kernel: [243421.785675] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.785677] ret_from_fork+0x31/0x50
Dec 4 13:57:29 engel kernel: [243421.785682] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.785683]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:57:29 engel kernel: [243421.785689] </TASK>
Dec 4 13:57:29 engel kernel: [243421.785690] INFO: task nfsd:8493
blocked for more than 122 seconds.
Dec 4 13:57:29 engel kernel: [243421.785699] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:57:29 engel kernel: [243421.785708] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:57:29 engel kernel: [243421.785718] task:nfsd
state:D stack:0 pid:8493 ppid:2 flags:0x00004000
Dec 4 13:57:29 engel kernel: [243421.785720] Call Trace:
Dec 4 13:57:29 engel kernel: [243421.785721] <TASK>
Dec 4 13:57:29 engel kernel: [243421.785722] __schedule+0x3b8/0xb00
Dec 4 13:57:29 engel kernel: [243421.785726] schedule+0x5e/0xd0
Dec 4 13:57:29 engel kernel: [243421.785727]
schedule_timeout+0x147/0x160
Dec 4 13:57:29 engel kernel: [243421.785729]
wait_for_completion+0x8a/0x160
Dec 4 13:57:29 engel kernel: [243421.785732]
__flush_workqueue+0x140/0x410
Dec 4 13:57:29 engel kernel: [243421.785735]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.785801]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.785848] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.785889] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.785934]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:57:29 engel kernel: [243421.785998] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786045] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.786089] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:57:29 engel kernel: [243421.786152] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786198] kthread+0xe5/0x120
Dec 4 13:57:29 engel kernel: [243421.786200] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.786202] ret_from_fork+0x31/0x50
Dec 4 13:57:29 engel kernel: [243421.786217] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.786219]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:57:29 engel kernel: [243421.786223] </TASK>
Dec 4 13:57:29 engel kernel: [243421.786224] INFO: task nfsd:8494
blocked for more than 122 seconds.
Dec 4 13:57:29 engel kernel: [243421.786234] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:57:29 engel kernel: [243421.786242] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:57:29 engel kernel: [243421.786252] task:nfsd
state:D stack:0 pid:8494 ppid:2 flags:0x00004000
Dec 4 13:57:29 engel kernel: [243421.786255] Call Trace:
Dec 4 13:57:29 engel kernel: [243421.786256] <TASK>
Dec 4 13:57:29 engel kernel: [243421.786268] __schedule+0x3b8/0xb00
Dec 4 13:57:29 engel kernel: [243421.786271] schedule+0x5e/0xd0
Dec 4 13:57:29 engel kernel: [243421.786272]
schedule_timeout+0x147/0x160
Dec 4 13:57:29 engel kernel: [243421.786274] ?
__pfx_sha512_transform_rorx+0x10/0x10 [sha512_ssse3]
Dec 4 13:57:29 engel kernel: [243421.786291]
wait_for_completion+0x8a/0x160
Dec 4 13:57:29 engel kernel: [243421.786294]
__flush_workqueue+0x140/0x410
Dec 4 13:57:29 engel kernel: [243421.786308]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786352]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786391] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.786427] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.786463]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:57:29 engel kernel: [243421.786516] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786554] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.786589] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:57:29 engel kernel: [243421.786641] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786679] kthread+0xe5/0x120
Dec 4 13:57:29 engel kernel: [243421.786681] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.786682] ret_from_fork+0x31/0x50
Dec 4 13:57:29 engel kernel: [243421.786685] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.786686]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:57:29 engel kernel: [243421.786690] </TASK>
Dec 4 13:57:29 engel kernel: [243421.786690] INFO: task nfsd:8495
blocked for more than 122 seconds.
Dec 4 13:57:29 engel kernel: [243421.786699] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:57:29 engel kernel: [243421.786707] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:57:29 engel kernel: [243421.786716] task:nfsd
state:D stack:0 pid:8495 ppid:2 flags:0x00004000
Dec 4 13:57:29 engel kernel: [243421.786718] Call Trace:
Dec 4 13:57:29 engel kernel: [243421.786719] <TASK>
Dec 4 13:57:29 engel kernel: [243421.786720] __schedule+0x3b8/0xb00
Dec 4 13:57:29 engel kernel: [243421.786722] schedule+0x5e/0xd0
Dec 4 13:57:29 engel kernel: [243421.786724]
schedule_timeout+0x147/0x160
Dec 4 13:57:29 engel kernel: [243421.786726]
wait_for_completion+0x8a/0x160
Dec 4 13:57:29 engel kernel: [243421.786728]
__flush_workqueue+0x140/0x410
Dec 4 13:57:29 engel kernel: [243421.786731]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786778]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.786844] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.786893] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.786931]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:57:29 engel kernel: [243421.786986] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.787024] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.787060] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:57:29 engel kernel: [243421.787125] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.787172] kthread+0xe5/0x120
Dec 4 13:57:29 engel kernel: [243421.787174] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.787175] ret_from_fork+0x31/0x50
Dec 4 13:57:29 engel kernel: [243421.787177] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.787179]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:57:29 engel kernel: [243421.787182] </TASK>
Dec 4 13:57:29 engel kernel: [243421.787183] INFO: task nfsd:8496
blocked for more than 122 seconds.
Dec 4 13:57:29 engel kernel: [243421.787192] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:57:29 engel kernel: [243421.787199] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:57:29 engel kernel: [243421.787208] task:nfsd
state:D stack:0 pid:8496 ppid:2 flags:0x00004000
Dec 4 13:57:29 engel kernel: [243421.787210] Call Trace:
Dec 4 13:57:29 engel kernel: [243421.787211] <TASK>
Dec 4 13:57:29 engel kernel: [243421.787212] __schedule+0x3b8/0xb00
Dec 4 13:57:29 engel kernel: [243421.787215] schedule+0x5e/0xd0
Dec 4 13:57:29 engel kernel: [243421.787216]
schedule_timeout+0x147/0x160
Dec 4 13:57:29 engel kernel: [243421.787218] ?
sched_clock_cpu+0xf/0x190
Dec 4 13:57:29 engel kernel: [243421.787223] ?
__smp_call_single_queue+0xad/0x120
Dec 4 13:57:29 engel kernel: [243421.787226] ?
ttwu_queue_wakelist+0xef/0x110
Dec 4 13:57:29 engel kernel: [243421.787229]
wait_for_completion+0x8a/0x160
Dec 4 13:57:29 engel kernel: [243421.787231]
__flush_workqueue+0x140/0x410
Dec 4 13:57:29 engel kernel: [243421.787233] ? kick_pool+0x5d/0xc0
Dec 4 13:57:29 engel kernel: [243421.787236]
nfsd4_destroy_session+0x1c3/0x280 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.787275]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.787310] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.787342] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.787374]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:57:29 engel kernel: [243421.787421] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.787455] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:57:29 engel kernel: [243421.787487] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:57:29 engel kernel: [243421.787534] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:57:29 engel kernel: [243421.787567] kthread+0xe5/0x120
Dec 4 13:57:29 engel kernel: [243421.787569] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.787570] ret_from_fork+0x31/0x50
Dec 4 13:57:29 engel kernel: [243421.787573] ? __pfx_kthread+0x10/0x10
Dec 4 13:57:29 engel kernel: [243421.787574]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:57:29 engel kernel: [243421.787577] </TASK>
Dec 4 13:59:31 engel kernel: [243544.662855] INFO: task nfsd:8488
blocked for more than 122 seconds.
Dec 4 13:59:31 engel kernel: [243544.662880] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:59:31 engel kernel: [243544.662890] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:59:31 engel kernel: [243544.662902] task:nfsd
state:D stack:0 pid:8488 ppid:2 flags:0x00004000
Dec 4 13:59:31 engel kernel: [243544.662907] Call Trace:
Dec 4 13:59:31 engel kernel: [243544.662909] <TASK>
Dec 4 13:59:31 engel kernel: [243544.662913] __schedule+0x3b8/0xb00
Dec 4 13:59:31 engel kernel: [243544.662933] schedule+0x5e/0xd0
Dec 4 13:59:31 engel kernel: [243544.662935]
schedule_timeout+0x147/0x160
Dec 4 13:59:31 engel kernel: [243544.662939] ? getboottime64+0x24/0x40
Dec 4 13:59:31 engel kernel: [243544.662943]
wait_for_completion+0x8a/0x160
Dec 4 13:59:31 engel kernel: [243544.662958]
__flush_workqueue+0x140/0x410
Dec 4 13:59:31 engel kernel: [243544.662965]
nfsd4_destroy_session+0x1c3/0x280 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.663069]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.663126] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.663164] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.663208]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:59:31 engel kernel: [243544.663273] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.663325] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.663362] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:59:31 engel kernel: [243544.663414] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.663496] kthread+0xe5/0x120
Dec 4 13:59:31 engel kernel: [243544.663500] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.663502] ret_from_fork+0x31/0x50
Dec 4 13:59:31 engel kernel: [243544.663507] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.663509]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:59:31 engel kernel: [243544.663516] </TASK>
Dec 4 13:59:31 engel kernel: [243544.663517] INFO: task nfsd:8491
blocked for more than 245 seconds.
Dec 4 13:59:31 engel kernel: [243544.663528] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:59:31 engel kernel: [243544.663536] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:59:31 engel kernel: [243544.663547] task:nfsd
state:D stack:0 pid:8491 ppid:2 flags:0x00004000
Dec 4 13:59:31 engel kernel: [243544.663549] Call Trace:
Dec 4 13:59:31 engel kernel: [243544.663550] <TASK>
Dec 4 13:59:31 engel kernel: [243544.663551] __schedule+0x3b8/0xb00
Dec 4 13:59:31 engel kernel: [243544.663554] schedule+0x5e/0xd0
Dec 4 13:59:31 engel kernel: [243544.663556]
schedule_timeout+0x147/0x160
Dec 4 13:59:31 engel kernel: [243544.663560] ?
__pfx_sha512_transform_rorx+0x10/0x10 [sha512_ssse3]
Dec 4 13:59:31 engel kernel: [243544.663566]
wait_for_completion+0x8a/0x160
Dec 4 13:59:31 engel kernel: [243544.663569]
__flush_workqueue+0x140/0x410
Dec 4 13:59:31 engel kernel: [243544.663573]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.663642]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.663689] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.663744] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.663806]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:59:31 engel kernel: [243544.663877] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.663918] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.663957] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:59:31 engel kernel: [243544.664013] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664053] kthread+0xe5/0x120
Dec 4 13:59:31 engel kernel: [243544.664055] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.664057] ret_from_fork+0x31/0x50
Dec 4 13:59:31 engel kernel: [243544.664060] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.664061]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:59:31 engel kernel: [243544.664065] </TASK>
Dec 4 13:59:31 engel kernel: [243544.664066] INFO: task nfsd:8493
blocked for more than 245 seconds.
Dec 4 13:59:31 engel kernel: [243544.664078] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:59:31 engel kernel: [243544.664087] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:59:31 engel kernel: [243544.664098] task:nfsd
state:D stack:0 pid:8493 ppid:2 flags:0x00004000
Dec 4 13:59:31 engel kernel: [243544.664101] Call Trace:
Dec 4 13:59:31 engel kernel: [243544.664102] <TASK>
Dec 4 13:59:31 engel kernel: [243544.664103] __schedule+0x3b8/0xb00
Dec 4 13:59:31 engel kernel: [243544.664106] schedule+0x5e/0xd0
Dec 4 13:59:31 engel kernel: [243544.664108]
schedule_timeout+0x147/0x160
Dec 4 13:59:31 engel kernel: [243544.664110]
wait_for_completion+0x8a/0x160
Dec 4 13:59:31 engel kernel: [243544.664113]
__flush_workqueue+0x140/0x410
Dec 4 13:59:31 engel kernel: [243544.664117]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664163]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664218] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.664255] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.664317]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:59:31 engel kernel: [243544.664386] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664427] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.664466] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:59:31 engel kernel: [243544.664522] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664562] kthread+0xe5/0x120
Dec 4 13:59:31 engel kernel: [243544.664564] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.664566] ret_from_fork+0x31/0x50
Dec 4 13:59:31 engel kernel: [243544.664568] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.664570]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:59:31 engel kernel: [243544.664574] </TASK>
Dec 4 13:59:31 engel kernel: [243544.664575] INFO: task nfsd:8494
blocked for more than 245 seconds.
Dec 4 13:59:31 engel kernel: [243544.664585] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:59:31 engel kernel: [243544.664594] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:59:31 engel kernel: [243544.664605] task:nfsd
state:D stack:0 pid:8494 ppid:2 flags:0x00004000
Dec 4 13:59:31 engel kernel: [243544.664608] Call Trace:
Dec 4 13:59:31 engel kernel: [243544.664609] <TASK>
Dec 4 13:59:31 engel kernel: [243544.664615] __schedule+0x3b8/0xb00
Dec 4 13:59:31 engel kernel: [243544.664619] schedule+0x5e/0xd0
Dec 4 13:59:31 engel kernel: [243544.664621]
schedule_timeout+0x147/0x160
Dec 4 13:59:31 engel kernel: [243544.664624] ?
__pfx_sha512_transform_rorx+0x10/0x10 [sha512_ssse3]
Dec 4 13:59:31 engel kernel: [243544.664629]
wait_for_completion+0x8a/0x160
Dec 4 13:59:31 engel kernel: [243544.664632]
__flush_workqueue+0x140/0x410
Dec 4 13:59:31 engel kernel: [243544.664636]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664700]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664768] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.664813] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.664854]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:59:31 engel kernel: [243544.664920] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.664959] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.664996] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:59:31 engel kernel: [243544.665082] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.665116] kthread+0xe5/0x120
Dec 4 13:59:31 engel kernel: [243544.665118] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.665120] ret_from_fork+0x31/0x50
Dec 4 13:59:31 engel kernel: [243544.665122] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.665123]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:59:31 engel kernel: [243544.665127] </TASK>
Dec 4 13:59:31 engel kernel: [243544.665127] INFO: task nfsd:8495
blocked for more than 245 seconds.
Dec 4 13:59:31 engel kernel: [243544.665150] Not tainted
6.6.3-debian64.all+1.2 #1
Dec 4 13:59:31 engel kernel: [243544.665158] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 4 13:59:31 engel kernel: [243544.665168] task:nfsd
state:D stack:0 pid:8495 ppid:2 flags:0x00004000
Dec 4 13:59:31 engel kernel: [243544.665170] Call Trace:
Dec 4 13:59:31 engel kernel: [243544.665183] <TASK>
Dec 4 13:59:31 engel kernel: [243544.665184] __schedule+0x3b8/0xb00
Dec 4 13:59:31 engel kernel: [243544.665187] schedule+0x5e/0xd0
Dec 4 13:59:31 engel kernel: [243544.665189]
schedule_timeout+0x147/0x160
Dec 4 13:59:31 engel kernel: [243544.665191]
wait_for_completion+0x8a/0x160
Dec 4 13:59:31 engel kernel: [243544.665193]
__flush_workqueue+0x140/0x410
Dec 4 13:59:31 engel kernel: [243544.665197]
nfsd4_create_session+0x847/0xd30 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.665253]
nfsd4_proc_compound+0x351/0x670 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.665297] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.665335] nfsd_dispatch+0x7c/0x1b0
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.665374]
svc_process_common+0x431/0x6e0 [sunrpc]
Dec 4 13:59:31 engel kernel: [243544.665428] ?
__pfx_nfsd_dispatch+0x10/0x10 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.665478] ? __pfx_nfsd+0x10/0x10
[nfsd]
Dec 4 13:59:31 engel kernel: [243544.665526] svc_process+0x131/0x180
[sunrpc]
Dec 4 13:59:31 engel kernel: [243544.665576] nfsd+0x84/0xd0 [nfsd]
Dec 4 13:59:31 engel kernel: [243544.665629] kthread+0xe5/0x120
Dec 4 13:59:31 engel kernel: [243544.665631] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.665633] ret_from_fork+0x31/0x50
Dec 4 13:59:31 engel kernel: [243544.665636] ? __pfx_kthread+0x10/0x10
Dec 4 13:59:31 engel kernel: [243544.665637]
ret_from_fork_asm+0x1b/0x30
Dec 4 13:59:31 engel kernel: [243544.665641] </TASK>
Regards
--
Wolfgang Walter
Studierendenwerk München Oberbayern
Anstalt des öffentlichen Rechts
