[LU-15637] Bug in ci_rand_read handling causes LBUG in osc_req_attr_set: Uncovered page

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Severity: 3
• Assignee: Patrick Farrell
• Reporter: Patrick Farrell

Description

[ 8402.916792] LustreError: 7649:0:(osc_object.c:397:osc_req_attr_set()) page@000000009ad7e51c[2 00000000616b8c7f 4 1 000000004ab6ae63]

[ 8402.918593] LustreError: 7649:0:(osc_object.c:397:osc_req_attr_set()) vvp-page@00000000e53341f8(0:0) vm@000000002f481f9e 17ffffc0001025 2:0 ffff8f831c266500 256 lru

[ 8402.920222] LustreError: 7649:0:(osc_object.c:397:osc_req_attr_set()) lov-page@000000002e64c2a0

[ 8402.921331] LustreError: 7649:0:(osc_object.c:397:osc_req_attr_set()) osc-page@00000000df19c37c 0: 1< 0x845fed 1 + + > 2< 0 0 4096 0x7 0x9 | 000000004ab6ae63 0000000064ec8362 00000000d34a3eca > 3< 1 4 0 > 4< 0 0 8 8437760 - | - - - + > 5< - - - + | 0 - | 0 - ->

[ 8402.923624] LustreError: 7649:0:(osc_object.c:397:osc_req_attr_set()) end page@000000009ad7e51c

[ 8402.924859] LustreError: 7649:0:(osc_object.c:397:osc_req_attr_set()) uncovered page!
[ 8402.925467] LustreError: 7649:0:(osc_object.c:405:osc_req_attr_set()) No lock resource
[ 8402.926072] Pid: 7649, comm: ptlrpcd_02_01 4.18.0-240.22.1.el8_3.x86_64 #1 SMP Thu Apr 8 19:01:30 UTC 2021
[ 8402.926683] Call Trace TBD:
[ 8402.927332] [<0>] libcfs_call_trace+0x6f/0x90 [libcfs]
[ 8402.927955] [<0>] osc_req_attr_set+0x4a0/0x550 [osc]
[ 8402.928618] [<0>] cl_req_attr_set+0x5e/0x150 [obdclass]
[ 8402.929245] [<0>] osc_build_rpc+0x4f3/0x1220 [osc]
[ 8402.929879] [<0>] osc_check_rpcs+0x12b2/0x18f0 [osc]
[ 8402.930492] [<0>] osc_io_unplug0+0xc0/0x110 [osc]
[ 8402.931109] [<0>] brw_queue_work+0x2e/0xc0 [osc]
[ 8402.931776] [<0>] work_interpreter+0x32/0x110 [ptlrpc]
[ 8402.932389] [<0>] ptlrpc_check_set+0x57e/0x1fe0 [ptlrpc]
[ 8402.933008] [<0>] ptlrpcd+0x6c1/0xa50 [ptlrpc]
[ 8402.933589] [<0>] kthread+0x112/0x130
[ 8402.934164] [<0>] ret_from_fork+0x22/0x40
[ 8402.934731] LustreError: 7649:0:(osc_object.c:410:osc_req_attr_set()) LBUG
[ 8402.935281] Pid: 7649, comm: ptlrpcd_02_01 4.18.0-240.22.1.el8_3.x86_64 #1 SMP Thu Apr 8 19:01:30 UTC 2021