[LU-11620] BUG: sleeping function called from invalid context at mm/slub.c:940

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.13.0, Lustre 2.10.7, Lustre 2.12.1
• Affects Version/s: Lustre 2.10.5
• Labels: llnl
• Environment: Lustre 2.10.5_2.chaos ; kernel 3.10.0-862.14.4.1chaos.ch6.x86_64
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Olaf Faaland

Description

OSS console log reports

BUG: sleeping function called from invalid context at mm/slub.c:940
in_atomic(): 1, irqs_disabled(): 0, pid: 152563, name: lfsck
CPU: 9 PID: 152563 Comm: lfsck Kdump: loaded Tainted: P           OE  ------------ T 3.10.0-862.14.4.1chaos.ch6.x86_64 #1
Hardware name: CRAY CRAY-GB512X-CN/S2600JF, BIOS SE5C600.86B.02.03.0003.041920141333 04/19/2014
Call Trace:
 [<ffffffff9f334f01>] dump_stack+0x19/0x1b
 [<ffffffff9eccf439>] __might_sleep+0xd9/0x100
 [<ffffffff9ee06363>] kmem_cache_alloc+0x43/0x240
 [<ffffffffc16918e1>] ? ofd_object_alloc+0x51/0x240 [ofd]
 [<ffffffffc16918e1>] ofd_object_alloc+0x51/0x240 [ofd]
 [<ffffffffc1176464>] lu_object_alloc+0x54/0x320 [obdclass]
 [<ffffffffc1173cb3>] ? htable_lookup+0x163/0x180 [obdclass]
 [<ffffffffc1176910>] lu_object_find_at+0x180/0x2b0 [obdclass]
 [<ffffffffc1177a98>] dt_locate_at+0x18/0xb0 [obdclass]
 [<ffffffffc15fadb2>] lfsck_layout_slave_prep+0x392/0x5b0 [lfsck]
 [<ffffffffc15d1fe6>] lfsck_master_engine+0x196/0x1450 [lfsck]
 [<ffffffffc15d1e50>] ? lfsck_master_oit_engine+0x11a0/0x11a0 [lfsck]
 [<ffffffff9ecc12d1>] kthread+0xd1/0xe0
 [<ffffffff9ecc1200>] ? insert_kthread_work+0x40/0x40
 [<ffffffff9f347837>] ret_from_fork_nospec_begin+0x21/0x21
 [<ffffffff9ecc1200>] ? insert_kthread_work+0x40/0x40

and about a day later, a different stack

BUG: sleeping function called from invalid context at mm/slub.c:940
in_atomic(): 1, irqs_disabled(): 0, pid: 154333, name: ll_ost_out01_00
CPU: 8 PID: 154333 Comm: ll_ost_out01_00 Kdump: loaded Tainted: P        W  OE  ------------ T 3.10.0-862.14.4.1chaos.ch6.x86_64 #1
Hardware name: CRAY CRAY-GB512X-CN/S2600JF, BIOS SE5C600.86B.02.03.0003.041920141333 04/19/2014
Call Trace:
 [<ffffffff9f334f01>] dump_stack+0x19/0x1b
 [<ffffffff9eccf439>] __might_sleep+0xd9/0x100
 [<ffffffff9ee06363>] kmem_cache_alloc+0x43/0x240
 [<ffffffffc16918e1>] ? ofd_object_alloc+0x51/0x240 [ofd]
 [<ffffffffc16918e1>] ofd_object_alloc+0x51/0x240 [ofd]
 [<ffffffffc1176464>] lu_object_alloc+0x54/0x320 [obdclass]
 [<ffffffffc1173cb3>] ? htable_lookup+0x163/0x180 [obdclass]
 [<ffffffffc1176910>] lu_object_find_at+0x180/0x2b0 [obdclass]
 [<ffffffffc1176e7f>] lu_object_find_slice+0x1f/0x90 [obdclass]
 [<ffffffffc16074ce>] lfsck_orphan_it_next+0x17e/0xc90 [lfsck]
 [<ffffffffc160804e>] lfsck_orphan_it_load+0x6e/0x160 [lfsck]
 [<ffffffffc1178d28>] dt_index_walk+0xf8/0x450 [obdclass]
 [<ffffffffc1179080>] ? dt_index_walk+0x450/0x450 [obdclass]
 [<ffffffffc117993c>] dt_index_read+0x44c/0x6b0 [obdclass]
 [<ffffffffc13b47e2>] tgt_obd_idx_read+0x612/0x860 [ptlrpc]
 [<ffffffffc13b653a>] tgt_request_handle+0x92a/0x1370 [ptlrpc]
 [<ffffffffc135db5b>] ptlrpc_server_handle_request+0x23b/0xaa0 [ptlrpc]
 [<ffffffffc135b26b>] ? ptlrpc_wait_event+0xab/0x350 [ptlrpc]
 [<ffffffff9ecd6492>] ? default_wake_function+0x12/0x20
 [<ffffffff9eccb87b>] ? __wake_up_common+0x5b/0x90
 [<ffffffffc1361c70>] ptlrpc_main+0xae0/0x1e90 [ptlrpc]
 [<ffffffffc1361190>] ? ptlrpc_register_service+0xe30/0xe30 [ptlrpc]
 [<ffffffff9ecc12d1>] kthread+0xd1/0xe0
 [<ffffffff9ecc1200>] ? insert_kthread_work+0x40/0x40
 [<ffffffff9f347837>] ret_from_fork_nospec_begin+0x21/0x21
 [<ffffffff9ecc1200>] ? insert_kthread_work+0x40/0x40

Issue Links

• is duplicated by: LU-11302 schedule while atomic with lfsck code