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SNMPD show logs systemstats_linux: unexpected header length
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Description

SNMPD show logs systemstats_linux: unexpected header length

To reproduce:

set service snmp community public client '127.0.0.1'

Check logs

May 01 15:03:58 f3 systemd[1]: Stopping snmpd.service - Simple Network Management Protocol (SNMP) Daemon....
May 01 15:03:58 f3 systemd[1]: snmpd.service: Deactivated successfully.
May 01 15:03:58 f3 systemd[1]: Stopped snmpd.service - Simple Network Management Protocol (SNMP) Daemon..
May 01 15:03:58 f3 systemd[1]: Starting snmpd.service - Simple Network Management Protocol (SNMP) Daemon....
May 01 15:03:58 f3 snmpd[88537]: systemstats_linux: unexpected header length in /proc/net/snmp. 237 != 224
May 01 15:03:58 f3 snmpd[88537]: systemstats_linux: unexpected header length in /proc/net/snmp. 237 != 224
May 01 15:03:58 f3 snmpd[88537]: systemstats_linux: unexpected header length in /proc/net/snmp. 237 != 224
May 01 15:03:58 f3 systemd[1]: Started snmpd.service - Simple Network Management Protocol (SNMP) Daemon..

Kernel version:

vyos@r4# uname -r
6.6.29-amd64-vyos
[edit]
vyos@r4#

But the service looks working
Possible fix in https://github.com/net-snmp/net-snmp/pull/785

Details

Difficulty level
Normal (likely a few hours)
Version
VyOS 1.5-rolling-202405010020
Why the issue appeared?
Issues in third-party code
Is it a breaking change?
Perfectly compatible
Issue type
Package upgrade

Event Timeline

Viacheslav created this task.May 1 2024, 12:10 PM
Viacheslav updated the task description. (Show Details)
Viacheslav updated the task description. (Show Details)
Viacheslav triaged this task as Normal priority.May 1 2024, 12:18 PM
pasik subscribed.May 1 2024, 2:26 PM
c-po subscribed.May 14 2024, 5:26 PM

https://github.com/net-snmp/net-snmp/issues/786

c-po changed Why the issue appeared? from Will be filled on close to Issues in third-party code.May 14 2024, 5:26 PM
c-po added a project: VyOS 1.4 Sagitta (1.4.0-epa3).
syncer moved this task from 1.4.0-epa3 to 1.4.0-GA on the VyOS 1.4 Sagitta board.May 15 2024, 9:29 AM
syncer edited projects, added VyOS 1.4 Sagitta (1.4.0-GA); removed VyOS 1.4 Sagitta (1.4.0-epa3).
dmbaturin edited projects, added VyOS 1.4 Sagitta (1.4.1); removed VyOS 1.4 Sagitta (1.4.0-GA), VyOS 1.5 Circinus.Jul 2 2024, 7:29 PM
c-po changed the task status from Open to In progress.EditedJul 4 2024, 10:32 AM
c-po claimed this task.
c-po added a project: VyOS 1.5 Circinus.
c-po changed Difficulty level from Unknown (require assessment) to Normal (likely a few hours).
c-po changed Is it a breaking change? from Unspecified (possibly destroys the router) to Perfectly compatible.
c-po changed Issue type from Bug (incorrect behavior) to Package upgrade.

We should backport https://github.com/net-snmp/net-snmp/pull/785/commits/f5ae6baf0018abda9dedc368fe6d52c0d7a8ab8f to our net-snmp version

from https://github.com/net-snmp/net-snmp/pull/785

c-po added a comment.Jul 4 2024, 10:51 AM

https://github.com/vyos/vyos-build/pull/686

c-po moved this task from Open to Finished on the VyOS 1.5 Circinus board.Jul 4 2024, 10:56 AM
c-po moved this task from Backlog to In Progress on the VyOS 1.4 Sagitta (1.4.1) board.Jul 4 2024, 2:39 PM
c-po closed this task as Resolved.Jul 5 2024, 6:30 AM
c-po moved this task from In Progress to Finished on the VyOS 1.4 Sagitta (1.4.1) board.