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zwa

Member

Registered: 2005-12-05

Posts: 119

task nfsd:num blocked for more than X seconds

I cant copy files from nfs server, this used to work fine a couple of kernels ago. I can browse the shares but copying stalls. BTW I am copying big files of several GB.

INFO: task nfsd:546 blocked for more than 122 seconds.
      Tainted: P           OE     5.12.2-zen2-1-zen #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:nfsd            state:D stack:    0 pid:  546 ppid:     2 flags:0x00004000
Call Trace:
 __schedule+0x334/0xcb0
 schedule_preempt_disabled+0x62/0xd0
 __mutex_lock.constprop.0+0x1a6/0x530
 svc_tcp_sendto+0x7f/0x3c0 [sunrpc]
 ? svcauth_unix_release+0x51/0x60 [sunrpc]
 ? svcauth_unix_release+0x51/0x60 [sunrpc]
 ? svc_authorise+0x37/0x40 [sunrpc]
 ? svc_process_common+0x11b/0x710 [sunrpc]
 ? nfsd_svc+0x400/0x400 [nfsd]
 svc_send+0x4c/0x180 [sunrpc]
 nfsd+0xed/0x150 [nfsd]
 ? nfsd_destroy+0x60/0x60 [nfsd]
 kthread+0x181/0x1b0
 ? __kthread_init_worker+0x50/0x50
 ret_from_fork+0x22/0x30

I am also seeing this, dont know if it is related:

CPU: 1 PID: 0 Comm: swapper/1 Tainted: P           OE     5.12.2-zen2-1-zen #1
Hardware name: System manufacturer System Product Name/P8Z68 DELUXE, BIOS 3603 11/09/2012
Call Trace:
 <IRQ>
 dump_stack+0x76/0x94
 __report_bad_irq+0x35/0xaa
 note_interrupt.cold+0xb/0x64
 handle_irq_event+0xa9/0xb0
 handle_fasteoi_irq+0xb6/0x1d0
 __common_interrupt+0x41/0xa0
 common_interrupt+0x7e/0xa0
 </IRQ>
 asm_common_interrupt+0x1e/0x40
RIP: 0010:cpuidle_enter_state+0xd7/0x7a0
Code: 66 66 90 31 ff e8 29 22 79 ff 45 84 ff 74 17 9c 58 66 66 90 66 90 f6 c4 02 0f 85 44 05 00 00 31 ff e8 1d c8 80 ff fb 66 66 90 <66> 66 90 45 85 e>
RSP: 0018:ffffb386000bfea8 EFLAGS: 00000246
RAX: ffffa057d6cac7c0 RBX: ffffa057d6cb6910 RCX: 000000000000001f
RDX: 0000000000000000 RSI: 0000000025a6b8b4 RDI: 0000000000000000
RBP: 0000000000000004 R08: 000005b02adaab46 R09: 000005b06002adb6
R10: 0000000000000001 R11: 0000000000000008 R12: ffffffffa8b453e0
R13: 0000000000000004 R14: 000005b02adaab46 R15: 0000000000000000
 ? cpuidle_enter_state+0xb7/0x7a0
 cpuidle_enter+0x29/0x40
 do_idle+0x1e3/0x280
 cpu_startup_entry+0x19/0x20
 secondary_startup_64_no_verify+0xc2/0xcb
handlers:
[<00000000f32c63b4>] skge_intr [skge]
Disabling IRQ #19

System info:
5.12.2-zen2-1-zen
Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
8GB Ram

Edit1:
I just realized that copying through ssh is very slow in the order of 50 KB/s. After a reboot I get 10MB/s, Through ssh and nfs. Will update if problem persist.

Last edited by zwa (2021-05-12 00:26:57)

gyurman

Member

From: Budapest/Hungary

Registered: 2011-03-22

Posts: 68

Re: task nfsd:num blocked for more than X seconds

Hello! I think this error has been there for a long time. There is no problem with the ssh program and the zen kernel. I have a raspberry py computer, but it doesn't work either. I got a similar error.