[LU-13382] Wrong buffer for field 'niobuf_inline' (7 of 7) in format 'LDLM_INTENT_OPEN'

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.10.5
• Type: Question/Request
• Priority: Major
• Reporter: Jon Symon (Inactive)
• Assignee: Mikhail Pershin
• Resolution: Duplicate

Environment

Servers running lustre 2.10.5-1 on RHEL 7.5, clients are running lustre-client 2.13.0-1 on RHEL 8.1

• Epic/Theme: client

Description

We have just upgraded all of our clients to RHEL 8.1 with lustre client 2.13.0-1.  Within hours of letting the users back onto the system we started seeing a number of the nodes reboot.  These servers are showing a very large number of this error :-

 

Wrong buffer for field 'niobuf_inline' (7 of 7) in format 'LDLM_INTENT_OPEN'

 

I have sen this described as a cosmetic error, but were are seeing a lot of them - in oe case more the 21000 in a period of less than a few seconds.  Can you please confirm if these messages are cosmetic?

Thanks

jon

 

Issue Links

• is related to: LU-13136 (layout.c:2121:__req_capsule_get()) @...
• is related to: LU-13438 Rhel8.1 / lustre-client 2.12.4-1

Comments

[Jon Symon (Inactive)]

I should add that these errors appear to be generated by one program compiled by one of our users.  End result is a kernel panic followed by a reboot of the node.

js

[Peter Jones]

Mike

This looks to be a duplicate of LU-13136. Is this something that we should be planning to include in 2.12.5? Can you confirm whether there are any negative impacts when receiving this message.

Jon

I am puzzled as to why you are running 2.13 clients. This is not something tested or expected to work on RHEL 8.1 nor supported to interoperate with 2.10.x servers. I would recommend that you consider switching to a 2.12.x client

Peter

[Mikhail Pershin]

yes, this is the same issue, though it didn't cause panic and reboot in past. It would be helpful to get corresponding panic info if possible. As for 2.12.5, I think that will be useful to patch it too

[Andreas Dilger]

Close as duplicate of LU-13136.