Hi Nicola,
Is it possible please to provide the exact kernel version you are using in Rocky Linux and also in Archlinux ? It's curious to see that Ceph 18.2.4 on Rocky Linux is not working but on Archlinux you have no issues. From what I know Arch Linux tends to ship much more recent kernels than Rocky Linux.
Thank you,
Bogdan Velica
Bogdan Velica
On Thu, Aug 22, 2024 at 11:34 AM Nicola Mori <mori@xxxxxxxxxx> wrote:
Dear Ceph developers,
I originally posted this question on the users mailing list and got the
suggestion to post it also here. Yesterday I updated my Cephadm-managed
cluster from 18.2.2 to 18.2.4, and since then I get a
MDS_CLIENTS_BROKEN_ROOTSQUASH error which I didn't get with 18.2.2. As
far as I could go with web search, I understood that this error is due
to a missing feature in the CephFS client, but also that the feature is
going to be introduced with version 19. So I'd need to understand why
this error comes out and if it's possible how to fix it.
One thing that might be relevant is that some clients trigger the error
while some other doesn't:
- Ceph 18.2.2 kernel client on Rocky Linux 8: error
- Ceph 18.2.4 kernel client on Rocky Linux 9: error
- Ceph 18.2.4 kernel client on Archlinux (on kernel 6.10.6): no error
From the above facts I'd say that the error might be triggered by some
compilation flags, since there's no correlation with client version, is
it plausible?
Thanks,
Nicola
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