C9300-48P WR or copy run start stuck

[Clem58]

Hello,

We have an issue with one of our C9300-48P switches, it has 4 stacks.

When we do "wr" or "copy run start" sometimes it's stuck and the switch doesn't react anymore in the CLI.

Here are the version details :

C9300-48P 16.12.4 CAT9K_IOSXE INSTALL

Are you aware of this bug and do you know why it's doing that ?

[balaji.bandi]

post - show run config and  show version here

[Clem58]

We have found this thread and bug CSCvj22081

https://community.cisco.com/t5/switching/c9200-stack-reload-after-saving-the-configuration/td-p/4011745

We have removed the archive statements in the configuration, we will see if the issue is solved.

[Clem58]

The issue re-occured today, after some modifications we did a "wr" and the switch chassis restarted again :

*Feb 8 2021 16:45:47.019 UTC: %HMANRP-5-CHASSIS_DOWN_EVENT: Chassis 1 gone DOWN!

We will open a TAC because this is really critical for us and we need to find a solution ASAP.

[Clem58 · Accepted solution]

FYI this issue is solved, a TAC case had been created and a Cisco engineer was able to find the source, it's related with bug CSCvp92564

You can see a thread about this bug also in Reddit: KRON defects : Cisco (reddit.com)

So it was the KRON write config scheduled task that was causing the freeze + reboot issue each time we did WR or "copy run start".

The solution proposed by Cisco, in the config :

• Remove KRON statements
• Replace KRON statements by EEM