Soft locks on Rocky 8.7 on AWS with FSx for Lustre client

[ean]

Hello Rocky community,

My first post here… hello!

I’m running Rocky 8.7 on AWS and trying to use the FSx for Lustre filesystem with it. When I install the client as per the AWS instructions, here:

Installing the Lustre client - FSx for Lustre

(The compatibility matrix says 8.7 should work with the Lustre client and my contact at AWS is saying it works for him.)

The client install successfully. Then I try to mount:

sudo mount -t lustre -o noatime,flock fs-00b4d8fbf28ff3fa7.fsx.ap-southeast-1.amazonaws.com@tcp:/b3kplbmv /mnt/fsx

… that results in soft lock to the syslog:

Message from syslogd@flame01 at Jul 17 07:15:46 ... kernel:watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [pmdalinux:27713]

Then the system becomes unresponsive. The only way out is to terminate the instance via the AWS console.

I’m by no means a linux expert and so afriad I’m all out of ideas. Can anyone lead me in the right direction please?

In case it’s useful, here’s my post on AWS re:Post:

Can't get FSx for Lustre client working on Rocky Linux 8.7

Thank you very much!
Ean

[ean]

Ok, with AWS support’s help, turns out I had to update the kernel then all good.