Some additional data I thought might be helpful:
$ sudo su -
# echo l > /proc/sysrq-trigger
---/var/log/syslog---
2024-07-19T12:45:33.815231-04:00 victus kernel: NMI backtrace for cpu 11
2024-07-19T12:45:33.815232-04:00 victus kernel: CPU: 11 PID: 271 Comm:
kworker/11:3 Not tainted 6.8.0-38-generic #38-Ubuntu
2024-07-19T12:45:33.815232-04:00 victus kernel: Hardware name: HP Victus by HP
Gaming Laptop 15-fb2xxx/8C2F, BIOS F.03 05/20/2024
2024-07-19T12:45:33.815233-04:00 victus kernel: Workqueue: kacpi_notify
acpi_os_execute_deferred
2024-07-19T12:45:33.815233-04:00 victus kernel: RIP:
0010:acpi_ps_get_arguments.constprop.0+0x8a/0x360
2024-07-19T12:45:33.815234-04:00 victus kernel: Code: 02 20 0f 85 9c 01 00 00
41 0f b7 44 24 0a 66 83 f8 0e 0f 86 6b 01 00 00 66 83 f8 2d 75 75 48 8d 73 38
b9 01 00 00 00 4c 89 e2 <48> 89 df e8 4e f3 ff ff 85 c0 0f 85 1f 02 00 00 c7 43
28 00 00 00
2024-07-19T12:45:33.815235-04:00 victus kernel: RSP: 0018:ffffbaf5008c3b68
EFLAGS: 00000246
2024-07-19T12:45:33.815236-04:00 victus kernel: RAX: 000000000000002d RBX:
ffff94bd8d60a800 RCX: 0000000000000001
2024-07-19T12:45:33.815236-04:00 victus kernel: RDX: ffff94bd82635190 RSI:
ffff94bd8d60a838 RDI: 0000000000000000
2024-07-19T12:45:33.815237-04:00 victus kernel: RBP: ffffbaf5008c3b98 R08:
0000000000000000 R09: 0000000000000000
2024-07-19T12:45:33.815237-04:00 victus kernel: R10: 0000000000000000 R11:
0000000000000000 R12: ffff94bd82635190
2024-07-19T12:45:33.815238-04:00 victus kernel: R13: ffffbaf500037da7 R14:
ffffbaf500037da7 R15: ffffbaf5008c3ba8
2024-07-19T12:45:33.815238-04:00 victus kernel: FS: 0000000000000000(0000)
GS:ffff94cc20180000(0000) knlGS:0000000000000000
2024-07-19T12:45:33.815239-04:00 victus kernel: CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
2024-07-19T12:45:33.815239-04:00 victus kernel: CR2: 00007f51bddf9bf8 CR3:
0000000df9e3c000 CR4: 0000000000f50ef0
2024-07-19T12:45:33.815240-04:00 victus kernel: PKRU: 55555554
2024-07-19T12:45:33.815240-04:00 victus kernel: Call Trace:
2024-07-19T12:45:33.815241-04:00 victus kernel: <NMI>
2024-07-19T12:45:33.815241-04:00 victus kernel: ? show_regs+0x6d/0x80
2024-07-19T12:45:33.815241-04:00 victus kernel: ? nmi_cpu_backtrace+0xb5/0x120
2024-07-19T12:45:33.815242-04:00 victus kernel: ? sched_clock_noinstr+0x9/0x10
2024-07-19T12:45:33.815243-04:00 victus kernel: ?
nmi_cpu_backtrace_handler+0x11/0x20
2024-07-19T12:45:33.815243-04:00 victus kernel: ? nmi_handle+0x64/0x180
2024-07-19T12:45:33.815244-04:00 victus kernel: ? default_do_nmi+0x47/0x140
2024-07-19T12:45:33.815244-04:00 victus kernel: ? exc_nmi+0x1c2/0x290
2024-07-19T12:45:33.815245-04:00 victus kernel: ? end_repeat_nmi+0xf/0x60
2024-07-19T12:45:33.815245-04:00 victus kernel: ?
acpi_ps_get_arguments.constprop.0+0x8a/0x360
2024-07-19T12:45:33.815248-04:00 victus kernel: message repeated 2 times: [ ?
acpi_ps_get_arguments.constprop.0+0x8a/0x360]
2024-07-19T12:45:33.815249-04:00 victus kernel: </NMI>
2024-07-19T12:45:33.815253-04:00 victus kernel: <TASK>
2024-07-19T12:45:33.815253-04:00 victus kernel: acpi_ps_parse_loop+0x331/0x780
2024-07-19T12:45:33.815254-04:00 victus kernel: acpi_ps_parse_aml+0x226/0x600
2024-07-19T12:45:33.815254-04:00 victus kernel:
acpi_ps_execute_method+0x172/0x3e0
2024-07-19T12:45:33.815255-04:00 victus kernel: acpi_ns_evaluate+0x175/0x5f0
2024-07-19T12:45:33.815255-04:00 victus kernel:
acpi_evaluate_object+0x1a2/0x4a0
2024-07-19T12:45:33.815256-04:00 victus kernel: acpi_evaluate_dsm+0xc7/0x150
2024-07-19T12:45:33.815256-04:00 victus kernel: ucsi_acpi_dsm+0x57/0xa0
[ucsi_acpi]
2024-07-19T12:45:33.815257-04:00 victus kernel: ucsi_acpi_read+0x2f/0x70
[ucsi_acpi]
2024-07-19T12:45:33.815257-04:00 victus kernel: ucsi_acpi_notify+0x42/0xe0
[ucsi_acpi]
2024-07-19T12:45:33.815258-04:00 victus kernel:
acpi_ev_notify_dispatch+0x56/0xa0
2024-07-19T12:45:33.815258-04:00 victus kernel:
acpi_os_execute_deferred+0x17/0x40
2024-07-19T12:45:33.815259-04:00 victus kernel: process_one_work+0x16c/0x350
2024-07-19T12:45:33.815259-04:00 victus kernel: worker_thread+0x306/0x440
2024-07-19T12:45:33.815260-04:00 victus kernel: ?
srso_alias_return_thunk+0x5/0xfbef5
2024-07-19T12:45:33.815260-04:00 victus kernel: ?
_raw_spin_lock_irqsave+0xe/0x20
2024-07-19T12:45:33.815261-04:00 victus kernel: ? __pfx_worker_thread+0x10/0x10
2024-07-19T12:45:33.815261-04:00 victus kernel: kthread+0xef/0x120
2024-07-19T12:45:33.815262-04:00 victus kernel: ? __pfx_kthread+0x10/0x10
2024-07-19T12:45:33.815262-04:00 victus kernel: ret_from_fork+0x44/0x70
2024-07-19T12:45:33.815263-04:00 victus kernel: ? __pfx_kthread+0x10/0x10
2024-07-19T12:45:33.815263-04:00 victus kernel: ret_from_fork_asm+0x1b/0x30
2024-07-19T12:45:33.815263-04:00 victus kernel: </TASK>
$ ps auxwww|egrep kacpi_notify|tail -5
root 1584 1.0 0.0 0 0 ? D 12:01 0:14
[kworker/11:92+kacpi_notify]
root 1585 1.0 0.0 0 0 ? D 12:01 0:14
[kworker/11:93+kacpi_notify]
root 1591 1.0 0.0 0 0 ? D 12:01 0:14
[kworker/11:94+kacpi_notify]
root 1620 1.0 0.0 0 0 ? D 12:01 0:15
[kworker/11:95+kacpi_notify]
$ sudo perf stat -p 1620 sleep 10
Performance counter stats for process id '1620':
109.43 msec task-clock # 0.011 CPUs
utilized
427 context-switches # 3.902 K/sec
0 cpu-migrations # 0.000 /sec
0 page-faults # 0.000 /sec
539,425,119 cycles # 4.930 GHz
235,983,004 stalled-cycles-frontend # 43.75% frontend
cycles idle
357,489,266 instructions # 0.66 insn per
cycle
# 0.66 stalled
cycles per insn
85,793,863 branches # 784.038 M/sec
9,109,923 branch-misses # 10.62% of all
branches
10.006953974 seconds time elapsed
$ sudo perf record -p 1620 -g -a sleep 10
Warning:
PID/TID switch overriding SYSTEM
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.114 MB perf.data (480 samples) ]
$ sudo perf report -I
Samples: 480 of event 'cycles:P', Event count (approx.): 562755334
Children Self Command Shared Object Symbol
- 100.00% 0.00% kworker/11:95+k [kernel.kallsyms] [k] ret_from_fork_asm
ret_from_fork_asm
ret_from_fork
kthread
- worker_thread
- 99.76% process_one_work
- acpi_os_execute_deferred
- acpi_ev_notify_dispatch
- 99.34% ucsi_acpi_notify
ucsi_acpi_read
ucsi_acpi_dsm
acpi_evaluate_dsm
- acpi_evaluate_object
- acpi_ns_evaluate
- 97.87% acpi_ps_execute_method
- 96.80% acpi_ps_parse_aml
- 92.02% acpi_ps_parse_loop
- 58.41% acpi_ds_exec_end_op
- 30.33% acpi_ds_evaluate_name_path
- 20.74% acpi_ex_resolve_to_value
- acpi_ex_resolve_node_to_value
- 2.10% acpi_ex_read_data_from_field
0.84%
acpi_ut_create_integer_object
- 0.61% acpi_ex_extract_from_field
acpi_ex_field_datum_io
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https://bugs.launchpad.net/bugs/2073538
Title:
kacpi_notify high cpu on interrupt gpe17
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