[LU-10081] ost-pools test_18: test failed to respond and timed out

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Affects Version/s: Lustre 2.11.0
• Environment: trevis, full, x86_64 servers, ppc clients; servers: el7.4, ldiskfs, branch master, v2.10.53.1, b3642; clients: el7.4, branch master, v2.10.53.1, b3642
• Severity: 3
• Assignee: WC Triage
• Reporter: James Casper

Description

https://testing.hpdd.intel.com/test_sessions/ba995751-659c-4e63-9b5b-fbf101137b78

Numerous instances of sync D in client dmesg:

04:18:39:[ 7277.288178] sync            D 00003fffb5226448     0  2457   2455 0x00000080
04:18:39:[ 7277.288219] Call Trace:
04:18:39:[ 7277.288233] [c00000000529f300] [c0000000014e60a4] nr_cpu_ids+0x0/0x4 (unreliable)
04:18:39:[ 7277.288279] [c00000000529f4d0] [c000000000019634] .__switch_to+0x254/0x460
04:18:39:[ 7277.288318] [c00000000529f580] [c0000000009a9c1c] .__schedule+0x43c/0xb00
04:18:39:[ 7277.288358] [c00000000529f6b0] [c0000000009a5e78] .schedule_timeout+0x398/0x460
04:18:39:[ 7277.288403] [c00000000529f7c0] [c0000000009a9734] .io_schedule+0xc4/0x170
04:18:39:[ 7277.288443] [c00000000529f850] [c0000000009a6098] .bit_wait_io+0x18/0x70
04:18:39:[ 7277.288483] [c00000000529f8d0] [c0000000009a62fc] .__wait_on_bit+0x16c/0x200
04:18:39:[ 7277.288524] [c00000000529f980] [c0000000002501b4] .wait_on_page_bit.constprop.31+0xd4/0xf0
04:18:39:[ 7277.288570] [c00000000529fa30] [c000000000250748] .__filemap_fdatawait_range+0x578/0x610
04:18:39:[ 7277.288617] [c00000000529fb60] [c000000000368998] .sync_inodes_sb+0x1a8/0x260
04:18:39:[ 7277.288656] [c00000000529fc70] [c000000000371c9c] .sync_inodes_one_sb+0x1c/0x30
04:18:39:[ 7277.288702] [c00000000529fce0] [c0000000003243cc] .iterate_supers+0x22c/0x2f0
04:18:39:[ 7277.288743] [c00000000529fda0] [c000000000371fb8] .sys_sync+0x48/0xd0
04:18:39:[ 7277.288782] [c00000000529fe30] [c00000000000a184] system_call+0x38/0xb4