IOCHK error causes hpwdt to invoke an NMI panic. At that time, the exception %rip shows an invalid address within the range of the mapped memory region that is vmalloc-ed by a 3rd party module named "vboxdrv".

Issue

• IOCHK error causes hpwdt to invoke an NMI panic. At that time, the exception %rip shows an invalid address within the range of the mapped memory region that is vmalloc-ed by a 3rd party module named "vboxdrv".

[5076850.120271] Kernel panic - not syncing: 00: An NMI occurred. Depending on your system the reason for the NMI is logged in any one of the following resources:
                 1. Integrated Management Log (IML)
                 2. OA Syslog
                 3. OA Forward Progress Log
                 4. iLO Event Log
[5076850.121486] CPU: 0 PID: 52417 Comm: EMT Kdump: loaded Tainted: P        W  OE  ------------   3.10.0-1160.6.1.el7.x86_64 #1
[5076850.121829] Hardware name: HP ProLiant BL460c Gen8, BIOS I31 05/24/2019
[5076850.122004] Call Trace:
[5076850.122177]  <NMI>  [<ffffffff96781400>] dump_stack+0x19/0x1b
[5076850.122364]  [<ffffffff9677a958>] panic+0xe8/0x21f
[5076850.122554]  [<ffffffff9609af0f>] nmi_panic+0x3f/0x40
[5076850.122732]  [<ffffffffc03b73df>] hpwdt_pretimeout+0x6f/0xb0 [hpwdt]
[5076850.122909]  [<ffffffff9678c93c>] nmi_handle.isra.0+0x8c/0x150
[5076850.123086]  [<ffffffff9678b1bb>] ? save_paranoid+0xfb/0x140
[5076850.123262]  [<ffffffff9678cbc4>] do_nmi+0x1c4/0x460
[5076850.123439]  [<ffffffff96030e71>] ? iommu_shutdown_noop+0x1/0x10
[5076850.123616]  [<ffffffff9678bd9c>] end_repeat_nmi+0x1e/0x81
[5076850.123791]  <EOE>  [<ffffffff960e70f8>] ? enqueue_task_fair+0x208/0x6c0
[5076850.123976]  [<ffffffff960de1d5>] ? sched_clock_cpu+0x85/0xc0
[5076850.124154]  [<ffffffff9603bf30>] ? send_sigtrap+0xa0/0xa0
[5076850.124336]  [<ffffffff96184254>] ? filter_match_preds_cb+0x124/0x180
[5076850.124519]  [<ffffffff960d71f0>] ? check_preempt_curr+0x80/0xa0
[5076850.124702]  [<ffffffff96183b88>] ? walk_pred_tree+0x58/0x110
[5076850.124884]  [<ffffffff96183ca0>] ? filter_match_preds+0x60/0xa0
[5076850.125068]  [<ffffffff961a849c>] ? perf_tp_event_match.isra.81+0x4c/0x60
[5076850.125246]  [<ffffffff967931b8>] ? fetch_memory_u64+0x58/0xd0
[5076850.125433]  [<ffffffffc0999848>] ? VBoxHost_RTThreadCtxHookEnable+0x28/0x40 [vboxdrv]
[5076850.125781]  [<ffffffffc0984c5b>] ? supdrvIOCtlFast+0x5b/0xb0 [vboxdrv]
[5076850.125962]  [<ffffffffc0980535>] ? VBoxDrvLinuxIOCtl_6_1_8+0x55/0x230 [vboxdrv]
[5076850.126302]  [<ffffffff9603bf35>] ? syscall_trace_enter+0x5/0x210
[5076850.126479]  [<ffffffff9603bf30>] ? send_sigtrap+0xa0/0xa0
[5076850.126657]  [<ffffffff96263320>] ? do_vfs_ioctl+0x3a0/0x5b0
[5076850.126834]  [<ffffffff96798bd4>] ? ftrace_regs_call+0x5/0x81
[5076850.127009]  [<ffffffff962635d1>] ? SyS_ioctl+0xa1/0xc0
[5076850.127185]  [<ffffffff9613e4a4>] ? __audit_syscall_entry+0xb4/0x110
[5076850.127361]  [<ffffffff96795226>] ? tracesys+0xa6/0xcc

crash> bt -p
PID: 52417  TASK: ffff92ce6c686300  CPU: 0   COMMAND: "EMT"
 #0 [ffff92ce9e608c70] machine_kexec at ffffffff96066294
 #1 [ffff92ce9e608cd0] __crash_kexec at ffffffff961225b2
 #2 [ffff92ce9e608da0] panic at ffffffff9677a963
 #3 [ffff92ce9e608e20] nmi_panic at ffffffff9609af0f
 #4 [ffff92ce9e608e30] hpwdt_pretimeout at ffffffffc03b73df [hpwdt]
 #5 [ffff92ce9e608e58] nmi_handle at ffffffff9678c93c
 #6 [ffff92ce9e608eb0] do_nmi at ffffffff9678cbc4
 #7 [ffff92ce9e608ef0] end_repeat_nmi at ffffffff9678bd9c
    [exception RIP: no symbolic reference]
    RIP: ffffffffc000cd20  RSP: ffff92c98e1fbae0  RFLAGS: 00000002
    RAX: ffffea9e0143e360  RBX: ffffea9e0143e320  RCX: dead000000000200
    RDX: ffffea9e0114bfe0  RSI: 0000000000000001  RDI: ffffea9e0143e320
    RBP: ffff8cc6a611fc58   R8: ffffea9e0143e320   R9: 0000000000000000
    R10: ffff8cc6dfb76f80  R11: ffffffffffffffff  R12: ffff8cc6a6933190
    R13: 0000000000000006  R14: ffffea9e0143e320  R15: ffff8cc6dffc9800
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #9 [ffff92c98e1fbb40] enqueue_task_fair at ffffffff960e70f8
#10 [ffff92c98e1fbbb0] walk_pred_tree at ffffffff96183b88
#11 [ffff92c98e1fbc00] filter_match_preds at ffffffff96183ca0
#12 [ffff92c98e1fbc30] perf_tp_event_match at ffffffff961a849c
#13 [ffff92c98e1fbcf0] fetch_memory_u64 at ffffffff967931b8
#14 [ffff92c98e1fbd68] VBoxHost_RTThreadCtxHookEnable at ffffffffc0999848 [vboxdrv]
#15 [ffff92c98e1fbe10] supdrvIOCtlFast at ffffffffc0984c5b [vboxdrv]
#16 [ffff92c98e1fbe20] VBoxDrvLinuxIOCtl_6_1_8 at ffffffffc0980535 [vboxdrv]
#17 [ffff92c98e1fbe80] do_vfs_ioctl at ffffffff96263320
#18 [ffff92c98e1fbf00] sys_ioctl at ffffffff962635d1
#19 [ffff92c98e1fbf50] tracesys at ffffffff96795226 (via system_call)
    RIP: 00007f85ba892307  RSP: 00007f859fb78d38  RFLAGS: 00000246
    RAX: ffffffffffffffda  RBX: 00007f85bb008000  RCX: ffffffffffffffff
    RDX: 0000000000000000  RSI: 00000000000056c0  RDI: 0000000000000007
    RBP: 00007f859fb78d40   R8: 00000000bafae201   R9: 0000000000000000
    R10: 0000000000000001  R11: 0000000000000246  R12: 00007f85baff3000
    R13: 00007f85bb008000  R14: ffffffffefffffff  R15: 00007f859fb78e1b
    ORIG_RAX: 0000000000000010  CS: 0033  SS: 002b