kernel BUG at fs/locks.c:697!

Issue

• The kernel crashes in __locks_insert_block() with a message "kernel BUG at fs/locks.c:697!"

[153422.609117] kernel BUG at fs/locks.c:697!
[153422.613252] invalid opcode: 0000 [#1] SMP NOPTI
[153422.617893] CPU: 56 PID: 423555 Comm: nfsd Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-477.15.1.el8_8.x86_64 #1
[153422.629744] Hardware name: Dell Inc. PowerEdge R650/0TCW38, BIOS 1.10.2 03/03/2023
[153422.637417] RIP: 0010:__locks_insert_block+0xe2/0xf0
[153422.642487] Code: 48 85 d2 74 04 48 89 4a 08 48 89 0c c5 00 46 51 be 49 89 74 24 20 5b 5d 41 5c 41 5d 41 5e e9 45 75 a3 00 49 8b 44 24 48 eb aa <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 9
0 0f 1f 44 00 00 41 54 55
[153422.661379] RSP: 0018:ff82c714eff0f558 EFLAGS: 00010202
[153422.666713] RAX: ff3e0111604ba970 RBX: ff3e01118594e428 RCX: ffffffffbe514600
[153422.673953] RDX: 0000000000000001 RSI: ff3e01118594e428 RDI: ff3e0111604ba948
[153422.681191] RBP: ff3e01118594e450 R08: ff82c714eff0f530 R09: ff3e010a87a8e0d8
[153422.688426] R10: ff82c714eff0f9f0 R11: ff3e010f00e80000 R12: ff3e012c8b470070
[153422.695665] R13: 0000000000000001 R14: 000000000000000c R15: ff3e01217de1fc00
[153422.702899] FS:  0000000000000000(0000) GS:ff3e011f90700000(0000) knlGS:0000000000000000
[153422.711093] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[153422.716946] CR2: 0000557e58c4c138 CR3: 0000002509a10003 CR4: 0000000000771ee0
[153422.724188] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[153422.731422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[153422.738659] PKRU: 55555554
[153422.741462] Call Trace:
[153422.744016]  posix_lock_inode+0x5cd/0x8a0
[153422.748136]  ? _Z5RetryP15KernelOperation12RecLockQueuePvij+0xcd0/0xcd0 [mmfs26]
[153422.755733]  cxiFcntlLock+0x2db/0x740 [mmfslinux]
[153422.760565]  ? _Z19getCifsOpenInstancePi+0x19/0x1f0 [mmfs26]
[153422.766389]  ? update_load_avg+0x7e/0x710
[153422.770503]  ? newidle_balance+0x279/0x3c0
[153422.774706]  ? update_load_avg+0x7e/0x710
[153422.778814]  ? __switch_to+0x10c/0x450
[153422.782669]  ? finish_task_switch+0x86/0x2e0
[153422.787039]  ? update_load_avg+0x7e/0x710
[153422.791160]  ? _Z9gpfsFcntlPvP13gpfsVfsData_tS_S_S_P9cxiNode_txP10cxiFlock_tiPFivEPmP10ext_cred_tP9MMFSVInfo+0x1496/0x2470 [mmfs26]
[153422.803180]  _Z9gpfsFcntlPvP13gpfsVfsData_tS_S_S_P9cxiNode_txP10cxiFlock_tiPFivEPmP10ext_cred_tP9MMFSVInfo+0x1496/0x2470 [mmfs26]
[153422.815002]  ? ipoib_hard_header+0x40/0x70 [ib_ipoib]
[153422.820165]  ? _Z5RetryP15KernelOperation12RecLockQueuePvij+0xcd0/0xcd0 [mmfs26]
[153422.827729]  ? down+0x12/0x50
[153422.830802]  ? _ZN15KernelOperationD1Ev+0x56/0xb0 [mmfs26]
[153422.836452]  ? _Z33gpfsIsCifsBypassTraversalCheckingv+0xa8/0xc0 [mmfs26]
[153422.843329]  gpfs_f_lock+0x412/0x600 [mmfslinux]
[153422.848072]  ? locks_alloc_lock+0x17/0x70
[153422.852447]  ? kmem_cache_alloc+0x13f/0x280
[153422.856951]  nfsd4_lock+0xde3/0xfe0 [nfsd]
[153422.861360]  nfsd4_proc_compound+0x30e/0x670 [nfsd]
[153422.866540]  nfsd_dispatch+0x15e/0x290 [nfsd]
[153422.871190]  svc_process_common+0x360/0x5c0 [sunrpc]
[153422.876467]  ? svc_sock_secure_port+0x12/0x40 [sunrpc]
[153422.881905]  ? nfsd_svc+0x2f0/0x2f0 [nfsd]
[153422.886290]  ? nfsd_shutdown_threads+0x80/0x80 [nfsd]
[153422.891626]  svc_process+0xb7/0xf0 [sunrpc]
[153422.896103]  nfsd+0xe3/0x140 [nfsd]
[153422.899867]  kthread+0x134/0x150
[153422.903359]  ? set_kthread_struct+0x50/0x50
[153422.907801]  ret_from_fork+0x1f/0x40