| 2024-04-19 14:48:32 |
Olle Liljenzin |
description |
I installed the 22.04 Beta on two test machines that were running 22.04 without issues before. One of them exports two volumes that are mounted by the other machine, which primarily uses them as a secondary storage for ccache.
After being up for a couple of hours (happened twice since yesterday evening) it seems that nfsd on the machine exporting the volumes hangs on something.
From dmesg on the server (repeated a few times):
[11183.290548] INFO: task nfsd:1419 blocked for more than 1228 seconds.
[11183.290558] Not tainted 6.8.0-22-generic #22-Ubuntu
[11183.290563] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[11183.290582] task:nfsd state:D stack:0 pid:1419 tgid:1419 ppid:2 flags:0x00004000
[11183.290587] Call Trace:
[11183.290602] <TASK>
[11183.290606] __schedule+0x27c/0x6b0
[11183.290612] schedule+0x33/0x110
[11183.290615] schedule_timeout+0x157/0x170
[11183.290619] wait_for_completion+0x88/0x150
[11183.290623] __flush_workqueue+0x140/0x3e0
[11183.290629] nfsd4_probe_callback_sync+0x1a/0x30 [nfsd]
[11183.290689] nfsd4_destroy_session+0x186/0x260 [nfsd]
[11183.290744] nfsd4_proc_compound+0x3af/0x770 [nfsd]
[11183.290798] nfsd_dispatch+0xd4/0x220 [nfsd]
[11183.290851] svc_process_common+0x44d/0x710 [sunrpc]
[11183.290924] ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
[11183.290976] svc_process+0x132/0x1b0 [sunrpc]
[11183.291041] svc_handle_xprt+0x4d3/0x5d0 [sunrpc]
[11183.291105] svc_recv+0x18b/0x2e0 [sunrpc]
[11183.291168] ? __pfx_nfsd+0x10/0x10 [nfsd]
[11183.291220] nfsd+0x8b/0xe0 [nfsd]
[11183.291270] kthread+0xef/0x120
[11183.291274] ? __pfx_kthread+0x10/0x10
[11183.291276] ret_from_fork+0x44/0x70
[11183.291279] ? __pfx_kthread+0x10/0x10
[11183.291281] ret_from_fork_asm+0x1b/0x30
[11183.291286] </TASK>
From dmesg on the client (repeated a number of times):
[ 6596.911785] RPC: Could not send backchannel reply error: -110
[ 6596.972490] RPC: Could not send backchannel reply error: -110
[ 6837.281307] RPC: Could not send backchannel reply error: -110
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: nfs-kernel-server 1:2.6.4-3ubuntu5
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
.etc.request-key.d.id_resolver.conf: create id_resolver * * /usr/sbin/nfsidmap -t 600 %k %d
ApportVersion: 2.28.1-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
Date: Fri Apr 19 14:10:25 2024
InstallationDate: Installed on 2024-04-16 (3 days ago)
InstallationMedia: Ubuntu-Server 24.04 LTS "Noble Numbat" - Beta amd64 (20240410.1)
NFSMounts:
NFSv4Mounts:
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: nfs-utils
UpgradeStatus: No upgrade log present (probably fresh install) |
I installed the 24.04 Beta on two test machines that were running 22.04 without issues before. One of them exports two volumes that are mounted by the other machine, which primarily uses them as a secondary storage for ccache.
After being up for a couple of hours (happened twice since yesterday evening) it seems that nfsd on the machine exporting the volumes hangs on something.
From dmesg on the server (repeated a few times):
[11183.290548] INFO: task nfsd:1419 blocked for more than 1228 seconds.
[11183.290558] Not tainted 6.8.0-22-generic #22-Ubuntu
[11183.290563] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[11183.290582] task:nfsd state:D stack:0 pid:1419 tgid:1419 ppid:2 flags:0x00004000
[11183.290587] Call Trace:
[11183.290602] <TASK>
[11183.290606] __schedule+0x27c/0x6b0
[11183.290612] schedule+0x33/0x110
[11183.290615] schedule_timeout+0x157/0x170
[11183.290619] wait_for_completion+0x88/0x150
[11183.290623] __flush_workqueue+0x140/0x3e0
[11183.290629] nfsd4_probe_callback_sync+0x1a/0x30 [nfsd]
[11183.290689] nfsd4_destroy_session+0x186/0x260 [nfsd]
[11183.290744] nfsd4_proc_compound+0x3af/0x770 [nfsd]
[11183.290798] nfsd_dispatch+0xd4/0x220 [nfsd]
[11183.290851] svc_process_common+0x44d/0x710 [sunrpc]
[11183.290924] ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
[11183.290976] svc_process+0x132/0x1b0 [sunrpc]
[11183.291041] svc_handle_xprt+0x4d3/0x5d0 [sunrpc]
[11183.291105] svc_recv+0x18b/0x2e0 [sunrpc]
[11183.291168] ? __pfx_nfsd+0x10/0x10 [nfsd]
[11183.291220] nfsd+0x8b/0xe0 [nfsd]
[11183.291270] kthread+0xef/0x120
[11183.291274] ? __pfx_kthread+0x10/0x10
[11183.291276] ret_from_fork+0x44/0x70
[11183.291279] ? __pfx_kthread+0x10/0x10
[11183.291281] ret_from_fork_asm+0x1b/0x30
[11183.291286] </TASK>
From dmesg on the client (repeated a number of times):
[ 6596.911785] RPC: Could not send backchannel reply error: -110
[ 6596.972490] RPC: Could not send backchannel reply error: -110
[ 6837.281307] RPC: Could not send backchannel reply error: -110
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: nfs-kernel-server 1:2.6.4-3ubuntu5
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
.etc.request-key.d.id_resolver.conf: create id_resolver * * /usr/sbin/nfsidmap -t 600 %k %d
ApportVersion: 2.28.1-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
Date: Fri Apr 19 14:10:25 2024
InstallationDate: Installed on 2024-04-16 (3 days ago)
InstallationMedia: Ubuntu-Server 24.04 LTS "Noble Numbat" - Beta amd64 (20240410.1)
NFSMounts:
NFSv4Mounts:
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: nfs-utils
UpgradeStatus: No upgrade log present (probably fresh install) |
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