[LU-4705] LustreError: 89827:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.11.0, Lustre 2.10.2
• Affects Version/s: Lustre 2.5.1
• Environment: Running tip of Lustre b2_5, 1 MGS, 1 MDS, 2 OSS, 12 clients.
• Severity: 3
• Assignee: WC Triage
• Reporter: Brett Lee (Inactive)

Description

Unexpected MDC LustreError's on most clients.

Client 10:
Mar 4 03:27:11 lustre10 kernel: LustreError: 183913:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

Client 11:
Mar 4 00:37:25 lustre11 kernel: LustreError: 89827:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

Client 12:
Mar 4 00:39:36 lustre12 kernel: LustreError: 11-0: cal-MDT0000-mdc-ffff8807b75c4000: Communicating with 192.168.20.1@tcp1, operation ldlm_enqueue failed with -116.
Mar 4 00:39:36 lustre12 kernel: LustreError: 70225:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -116
Mar 4 00:39:36 lustre12 kernel: LustreError: 70225:0:(vvp_io.c:1227:vvp_io_init()) cal: refresh file layout [0x200001c0b:0x176e:0x0] error -116.
Mar 4 03:09:33 lustre12 kernel: LustreError: 70225:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

Client 13:
Mar 4 00:29:54 lustre13 kernel: LustreError: 167294:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

Client 14:
Mar 4 01:18:04 lustre14 kernel: LustreError: 11-0: cal-MDT0000-mdc-ffff880787af8400: Communicating with 192.168.20.1@tcp1, operation ldlm_enqueue failed with -116.
Mar 4 01:18:04 lustre14 kernel: LustreError: 11503:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -116
Mar 4 01:18:04 lustre14 kernel: LustreError: 11503:0:(vvp_io.c:1227:vvp_io_init()) cal: refresh file layout [0x200001c12:0xbbe2:0x0] error -116.

Client 16:
Mar 4 01:00:46 lustre16 kernel: LustreError: 141605:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

Client 17:
Mar 4 00:13:39 lustre17 kernel: LustreError: 11-0: cal-MDT0000-mdc-ffff8808038aa000: Communicating with 192.168.20.1@tcp1, operation ldlm_enqueue failed with -116.
Mar 4 00:13:39 lustre17 kernel: LustreError: 126770:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -116
Mar 4 00:13:39 lustre17 kernel: LustreError: 126770:0:(vvp_io.c:1227:vvp_io_init()) cal: refresh file layout [0x200001beb:0x1aedf:0x0] error -116.
Mar 4 02:02:43 lustre17 kernel: LustreError: 126770:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

Client 18:
Mar 1 05:34:03 lustre18 kernel: LustreError: 146331:0:(mdc_locks.c:916:mdc_enqueue()) ldlm_cli_enqueue: -2

Issue Links

• is related to: LU-4973 MDD does not check nlink maximum limit properly, and cause LBUG in OSD layer(osd_handler.c:2805:osd_object_ref_add()) ASSERTION( inode->i_nlink <= 65000 )
• is related to: LU-4522 ldlm_cli_enqueue and ll_inode_revalidate_fini LustreError messages on 2.4.1 clients