[LU-14916] Interop: sanity-pfl test 0b fails with 'Create /mnt/lustre/d0b.sanity-pfl/f0b.sanity-pfl succeeded'

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.15.0
• Labels: interop
• Environment: 2.13.0 clients with >= 2.14.50.130 servers
• Severity: 3
• Assignee: WC Triage
• Reporter: James Nunez (Inactive)

Description

sanity-pfl test 0b stated failing on 07 March 2021 for 2.13.0 clients and 2.14.50.130 servers; https://testing.whamcloud.com/test_sets/4bb01bda-d0c3-4e30-8cf5-1b72e5dbff7f.

Looking at a recent failure at https://testing.whamcloud.com/test_sets/944ecbd7-e7f4-46de-b435-e52f50afca20, we see the following in the MDS (vm4) console log

[  283.886793] Lustre: DEBUG MARKER: == sanity-pfl test 0b: Verify comp stripe count limits =============================================== 15:58:00 (1622735880)
[  284.136777] Lustre: DEBUG MARKER: dumpe2fs -h /dev/mapper/mds1_flakey 2>&1 |
[  284.136777] 		grep -E -q '(ea_inode|large_xattr)'
[  284.504759] Lustre: 11026:0:(osd_handler.c:1938:osd_trans_start()) lustre-MDT0000: credits 12995 > trans_max 2592
[  284.506763] Lustre: 11026:0:(osd_handler.c:1867:osd_trans_dump_creds())   create: 200/800/0, destroy: 1/4/0
[  284.508514] Lustre: 11026:0:(osd_handler.c:1874:osd_trans_dump_creds())   attr_set: 3/3/0, xattr_set: 204/148/0
[  284.510309] Lustre: 11026:0:(osd_handler.c:1884:osd_trans_dump_creds())   write: 1001/8610/0, punch: 0/0/0, quota 6/6/0
[  284.512274] Lustre: 11026:0:(osd_handler.c:1891:osd_trans_dump_creds())   insert: 201/3416/0, delete: 2/5/0
[  284.514033] Lustre: 11026:0:(osd_handler.c:1898:osd_trans_dump_creds())   ref_add: 1/1/0, ref_del: 2/2/0
[  284.515721] Pid: 11026, comm: mdt00_000 4.18.0-240.22.1.el8_lustre.x86_64 #1 SMP Sun Apr 11 04:35:52 UTC 2021
[  284.517504] Call Trace TBD:
[  284.518265] [<0>] libcfs_call_trace+0x6f/0x90 [libcfs]
[  284.519281] [<0>] osd_trans_start+0x50c/0x530 [osd_ldiskfs]
[  284.520707] [<0>] top_trans_start+0x423/0x940 [ptlrpc]
[  284.521741] [<0>] mdd_unlink+0x495/0xb20 [mdd]
[  284.522703] [<0>] mdt_reint_unlink+0xb09/0x12a0 [mdt]
[  284.523656] [<0>] mdt_reint_rec+0x11f/0x250 [mdt]
[  284.524528] [<0>] mdt_reint_internal+0x498/0x780 [mdt]
[  284.525480] [<0>] mdt_reint+0x5e/0x100 [mdt]
[  284.526315] [<0>] tgt_request_handle+0xc78/0x1910 [ptlrpc]
[  284.527355] [<0>] ptlrpc_server_handle_request+0x31a/0xba0 [ptlrpc]
[  284.528533] [<0>] ptlrpc_main+0xba2/0x14a0 [ptlrpc]
[  284.529462] [<0>] kthread+0x112/0x130
[  284.530166] [<0>] ret_from_fork+0x35/0x40
[  284.536315] Lustre: 11026:0:(osd_internal.h:1304:osd_trans_exec_op()) lustre-MDT0000: opcode 7: before 2593 < left 8610, rollback = 7
[  284.822666] Lustre: DEBUG MARKER: /usr/sbin/lctl mark  sanity-pfl test_0b: @@@@@@ FAIL: Create \/mnt\/lustre\/d0b.sanity-pfl\/f0b.sanity-pfl succeeded 
[  285.114266] Lustre: DEBUG MARKER: sanity-pfl test_0b: @@@@@@ FAIL: Create /mnt/lustre/d0b.sanity-pfl/f0b.sanity-pfl succeeded

Issue Links

• is related to: LU-14191 setstripe: cannot create composite file: Numerical result out of range

Comments

[Andreas Dilger]

This interop issue was introduced by patch https://review.whamcloud.com/40895 "LU-14191 lod: comp stripe count limit check", but there isn't really a great solution for it. It would be possible to backport this patch to the older branch or skip this test in interop mode with newer servers, but it would still fail in interop with older clients that don't have the patch.