[lustre-discuss] Updating kernel will require recompilation of lustre kernel modules?

[Andreas Dilger]

On Sep 29, 2018, at 03:49, Amjad Syed <amjadcsu at gmail.com> wrote:
> 
> Hello
> We have an HPC running RHEL 7.4. We are using lustre 2.0 
> Red hat   last week released an advisory to update kernel  to fix mutagen astronomy bug.
> 
> Now question is we updrade kernel on MDS/OSS and linux client, do we need to recompile lustre against the updated kernel version ?

Newer RHEL kernel modules are built with weak symbols, so if the kernel update is minor then the modules will likely work with the new kernel.

Cheers, Andreas
---
Andreas Dilger
CTO Whamcloud