[LU-2768] 2.1 <-> 2.4 interop can't create file after upgrade

• Type: Bug
• Resolution: Duplicate
• Priority: Blocker
• Affects Version/s: Lustre 2.4.0
• Labels: HB
• Severity: 3
• Bugzilla ID: 2,775
• Assignee: Alex Zhuravlev
• Reporter: Niu Yawei (Inactive)

Description

When I try to mount 2.1 devices with 2.4, I found the following error message:

LustreError: 11740:0:(ost_handler.c:122:ost_validate_obdo()) lustre-OST0001: client 0@lo sent invalid object 2:4295032832
LustreError: 11499:0:(osp_precreate.c:740:osp_precreate_cleanup_orphans()) lustre-OST0001-osc-MDT0000: cannot cleanup orphans: rc = -71
LustreError: 11740:0:(ost_handler.c:122:ost_validate_obdo()) lustre-OST0000: client 0@lo sent invalid object 2:4294967296
LustreError: 11-0: lustre-OST0000-osc-MDT0000: Communicating with 0@lo, operation ost_create failed with -71.
LustreError: Skipped 1 previous similar message
LustreError: 11497:0:(osp_precreate.c:740:osp_precreate_cleanup_orphans()) lustre-OST0000-osc-MDT0000: cannot cleanup orphans: rc = -71

And any following creation will fail with ENOSPC because osp_precreate_reserve() always return -PROTO:

[root@rhel6 tests]# dd if=/dev/zero of=/mnt/lustre/c bs=1M count=1 oflag=sync
dd: opening `/mnt/lustre/c': No space left on device

Comments

[Di Wang]

this problem is actually related with 2775. I will make a patch to fix this. probably we can close this one.

[Niu Yawei (Inactive)]

Yes, it's 2.1 formatted filesystem that has been upgraded to 2.4 for both client and servers.

Actually, adding a "dd to file" in the conf-sanity.sh test_32 can easily reproduce it.

[Andreas Dilger]

Niu, could you please describe your test configuration better. Is it a 2.1-formatted filesystem that has been upgraded to 2.4 server code on both OSS and MDS?

It looks like ost_validate_obdo() is complaining about an IDIF FID sent to this target.

[Jodi Levi (Inactive)]

Alex, could you have a look at this blocker?