[LU-11985] Lustre 2.12.0 client compatibility question

• Type: Bug
• Resolution: Not a Bug
• Priority: Major
• Affects Version/s: Lustre 2.10.5
• Labels: interop
• Environment: server side: ; Linux aeon-eval-nvme-xeon 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux ; lustre-2.12.0-1.el7.x86_64 ; ZFS 0.7.9 ; ; client side: ; 2.10.5 ; 2.11.0 ; 2.12.0
• Severity: 3
• Assignee: Patrick Farrell (Inactive)
• Reporter: Haisong Cai (Inactive)

Description

 

We are getting errors when accessing a Lustre 2.12.0 filesystem with client version 2.10.5 or 2.11.0.

• we can make directory, no problem
• for files, we get errors like
• ls: cannot access file55: Invalid argument
  ls: cannot access file22: Invalid argument
  ls: cannot access file74: Invalid argument
  ls: cannot access file90: Invalid argument
  ls: cannot access file46: Invalid argument
  ls: cannot access file31: Invalid argument
• -bash-4.1$ ls -las
  ls: cannot access one: Invalid argument
  total 50
  25 drwxr-xr-x 2 manu1729 csd102 25600 Feb 20 09:30 .
  25 drwxr-xr-x 6 manu1729 csd102 25600 Feb 20 09:30 ..
  ? -????????? ? ? ? ? ? one
• using client 2.12, all looks fine.
• 2.12.0 ChangeLog says: Clients & Servers: Latest 2.10.X and Latest 2.11.X

Am I missing something here?