The kernel crashed due to Oracle RAC node eviction almost at the same time with the occurrence of a soft lockup.

Issue

• The kernel crashed due to Oracle RAC node eviction almost at the same time with the occurrence of a soft lockup.

[4020000.371485] watchdog: BUG: soft lockup - CPU#5 stuck for 27s! [oraagent.bin:12100]
[4020000.897164] sysrq: SysRq : Trigger a crash
[4020000.897195] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[4020000.897196] PGD 0 P4D 0 
[4020000.897201] Oops: 0002 [#1] SMP NOPTI
[4020000.897208] CPU: 10 PID: 8169 Comm: cssdmonitor Kdump: loaded Tainted: P           OE    --------- -  - 4.18.0-348.20.1.el8_5.x86_64 #1
[4020000.897209] Hardware name: VMware, Inc. VMware7,1/440BX Desktop Reference Platform, BIOS VMW71.00V.18227214.B64.2106252220 06/25/2021
[4020000.897227] RIP: 0010:sysrq_handle_crash+0x12/0x20
[4020000.897228] Code: 34 84 c0 ff 48 89 df e8 7c fb ff ff e9 9c fe ff ff 90 90 90 90 90 90 90 0f 1f 44 00 00 c7 05 4d cd 09 01 01 00 00 00 0f ae f8 <c6> 04 25 00 00 00 00 01 c3 0f 1f 44 00 00 0f 1f 44 00 00 fb 66 0f
[4020000.897229] RSP: 0018:ffffb0dd20e47d78 EFLAGS: 00010246
[4020000.897230] RAX: ffffffff959afff0 RBX: 0000000000000063 RCX: 0000000000000000
[4020000.897230] RDX: 0000000000000000 RSI: ffff8badffa96858 RDI: 0000000000000063
[4020000.897231] RBP: 0000000000000007 R08: 0000000000000000 R09: 000000000000001e
[4020000.897231] R10: 7265676769725420 R11: 0000000000001fe9 R12: 0000000000000000
[4020000.897232] R13: 0000000000000000 R14: ffffffff962af280 R15: 0000000000000000
[4020000.897233] FS:  00007f087e31b700(0000) GS:ffff8badffa80000(0000) knlGS:0000000000000000
[4020000.897233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[4020000.897234] CR2: 0000000000000000 CR3: 00000043842b4003 CR4: 00000000007706e0
[4020000.897257] PKRU: 55555554
[4020000.897257] Call Trace:
[4020000.897275]  __handle_sysrq.cold.11+0x48/0xfb
[4020000.897286]  write_sysrq_trigger+0x2b/0x30
[4020001.046531]  proc_reg_write+0x39/0x60
[4020001.046553]  vfs_write+0xa5/0x1a0
[4020001.046565]  ksys_write+0x4f/0xb0
[4020001.046588]  unload_network_ops_symbols+0x77c8/0x7970 [falcon_lsm_pinned_14713]
[4020001.046608]  ? unload_network_ops_symbols+0x77c8/0x7970 [falcon_lsm_pinned_14812]
[4020001.046630]  ? unload_network_ops_symbols+0x8d8a/0x8f30 [falcon_lsm_pinned_15003]
[4020001.046641]  ? do_syscall_64+0x5b/0x1a0
[4020001.046656]  ? entry_SYSCALL_64_after_hwframe+0x65/0xca
[4020001.046657] Modules linked in: [...]
[4020001.046713] CR2: 0000000000000000