KCSAN: data-race in tick_nohz_next_event / tick_sched

KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
Status: moderation: reported on 2020/12/07 11:34
Reported-by: syzbot+718de52a970b1291af5a@syzkaller.appspotmail.com
First crash: 397d, last: 4d22h

Sample crash report:

==================================================================
BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_timer

write to 0xffffffff838c1950 of 4 bytes by interrupt on cpu 1:
 tick_sched_do_timer kernel/time/tick-sched.c:191 [inline]
 tick_sched_timer+0x1f5/0x210 kernel/time/tick-sched.c:1414
 __run_hrtimer+0x160/0x480 kernel/time/hrtimer.c:1537
 __hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
 hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
 __sysvec_apic_timer_interrupt+0x6f/0x1c0 arch/x86/kernel/apic/apic.c:1106
 sysvec_apic_timer_interrupt+0x64/0x80 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
 arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
 acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline]
 acpi_idle_do_entry drivers/acpi/processor_idle.c:553 [inline]
 acpi_idle_enter+0x258/0x2e0 drivers/acpi/processor_idle.c:688
 cpuidle_enter_state+0x2b6/0x750 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x1a3/0x240 kernel/sched/idle.c:306
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:403
 secondary_startup_64_no_verify+0xb0/0xbb

read to 0xffffffff838c1950 of 4 bytes by task 0 on cpu 0:
 tick_nohz_next_event+0x217/0x300 kernel/time/tick-sched.c:838
 tick_nohz_get_sleep_length+0x121/0x280 kernel/time/tick-sched.c:1192
 menu_select+0x303/0x1040 drivers/cpuidle/governors/menu.c:283
 cpuidle_select+0x3d/0x50 drivers/cpuidle/cpuidle.c:322
 cpuidle_idle_call kernel/sched/idle.c:232 [inline]
 do_idle+0x16f/0x240 kernel/sched/idle.c:306
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:403
 rest_init+0xee/0x100 init/main.c:714
 arch_call_rest_init+0xa/0xb
 start_kernel+0x5ae/0x633 init/main.c:1120
 secondary_startup_64_no_verify+0xb0/0xbb

value changed: 0xffffffff -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.14.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================

Crashes (63):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Title
ci2-upstream-kcsan-gce	2021/07/19 11:56	upstream	2734d6c1b1a0	e6a17580	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/07/13 21:33	upstream	40226a3d96ef	70168d5c	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/07/06 20:27	upstream	3dbdb38e2869	cca78469	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/06/22 19:03	upstream	0c18f29aae7c	aba2b2fb	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/06/21 23:15	upstream	a96bfed64c89	aba2b2fb	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/06/19 22:35	upstream	913ec3c22ef4	aba2b2fb	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/06/09 06:38	upstream	368094df48e6	5c2fe346	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/06/04 09:57	upstream	f88cd3fb9df2	966a236b	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/05/17 09:51	upstream	d07f6ca923ea	a2eb125d	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/05/04 13:55	upstream	5e321ded302d	06c27ff5	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/04/16 05:50	upstream	7e25f40eab52	c59079a6	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/04/14 01:02	upstream	eebe426d32e1	a184b83e	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/03/31 22:02	upstream	d19cc4bfbff1	6a81331a	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/03/26 21:44	upstream	db24726bfefa	a8529b82	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/03/18 13:51	upstream	6417f03132a6	7216542e	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/03/18 04:43	upstream	6417f03132a6	fdb2bb2c	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/03/15 20:19	upstream	1e28eed17697	fdb2bb2c	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/03/14 00:45	upstream	88fe49249c99	4a003785	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/02/23 10:13	upstream	b12b47249688	fcc6d71b	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/02/19 20:14	upstream	f40ddce88593	f689d40a	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/02/13 23:24	upstream	ac30d8ce28d6	98682e5e	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/02/08 23:48	upstream	e0756cfc7d7c	2bd9619f	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/02/05 02:13	upstream	5c279c4cf206	23a562df	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/02/01 02:55	upstream	1048ba83fb1c	fc9fd31e	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/01/31 03:52	upstream	8c947645151c	fc9fd31e	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/01/26 21:16	upstream	13391c60da33	55a7d4df	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/01/18 05:58	upstream	19c329f68089	fd103621	.config	log	report	info	KCSAN: data-race in tick_nohz_next_event / tick_sched_timer
ci2-upstream-kcsan-gce	2021/01/14 15:45	upstream	65f0d2414b70	468dbb55	.config	log	report	info
ci2-upstream-kcsan-gce	2021/01/06 04:15	upstream	6207214a70bf	b1c228e1	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/25 09:42	upstream	71c5f03154ac	b982b3ea	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/17 10:36	upstream	accefff5b547	04201c06	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/15 11:00	upstream	148842c98a24	97183ed7	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/13 18:37	upstream	6bff9bb8a292	8f160dd5	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/12 03:31	upstream	7f376f1917d7	bca53db9	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/11 12:25	upstream	33dc9614dc20	ba24ffcd	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/08 09:10	upstream	cd796ed33450	9af51e31	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/07 21:06	upstream	cd796ed33450	51a9082e	.config	log	report	info
ci2-upstream-kcsan-gce	2020/12/02 05:27	upstream	509a15421674	c42a35e9	.config	log	report	info
ci2-upstream-kcsan-gce	2020/11/25 05:27	upstream	127c501a03d5	1a1f4bd8	.config	log	report	info
ci2-upstream-kcsan-gce	2020/11/22 21:57	upstream	68d3fa235fd8	0d27f508	.config	log	report	info
ci2-upstream-kcsan-gce	2020/11/21 19:07	upstream	27bba9c532a8	c7ec2d19	.config	log	report	info
ci2-upstream-kcsan-gce	2020/11/20 16:15	upstream	4d02da974ea8	0767f13f	.config	log	report	info
ci2-upstream-kcsan-gce	2020/11/15 06:50	upstream	e28c0d7c92c8	1bf9a662	.config	log	report	info
ci2-upstream-kcsan-gce	2020/11/14 05:14	upstream	9e6a39eae450	1bf9a662	.config	log	report	info
ci2-upstream-kcsan-gce	2020/11/01 19:35	upstream	31f020064f9d	8bc4594f	.config	log	report	info
ci2-upstream-kcsan-gce	2020/10/31 03:10	upstream	f5d808567a51	18e33098	.config	log	report	info
ci2-upstream-kcsan-gce	2020/10/30 10:11	upstream	07e088730245	a6e3ac3b	.config	log	report	info
ci2-upstream-kcsan-gce	2020/10/08 20:05	upstream	3d006ee42dde	92390980	.config	log	report	info
ci2-upstream-kcsan-gce	2020/10/05 20:53	upstream	7575fdda569b	1880b4a9	.config	log	report	info
ci2-upstream-kcsan-gce	2020/10/01 04:56	upstream	60e720931556	a9767fb2	.config	log	report	info
ci2-upstream-kcsan-gce	2020/09/26 06:05	upstream	7c7ec3226f5f	4a006f63	.config	log	report	info
ci2-upstream-kcsan-gce	2020/09/24 00:14	upstream	c9c9e6a49f89	54289b08	.config	log	report	info
ci2-upstream-kcsan-gce	2020/08/27 07:57	upstream	15bc20c6af4c	816e0689	.config	log	report
ci2-upstream-kcsan-gce	2020/08/20 01:07	upstream	18445bf405cb	ed282a3a	.config	log	report
ci2-upstream-kcsan-gce	2020/08/11 12:01	upstream	00e4db51259a	5d3ebca9	.config	log	report
ci2-upstream-kcsan-gce	2020/08/04 11:46	upstream	c0842fbc1b18	80a06902	.config	log	report
ci2-upstream-kcsan-gce	2020/08/02 00:35	upstream	d52daa8620c6	8df85ed9	.config	log	report
ci2-upstream-kcsan-gce	2020/08/01 08:26	upstream	7dc6fd0f3b84	8df85ed9	.config	log	report
ci2-upstream-kcsan-gce	2020/07/09 21:27	upstream	2a89b99f5803	edf162e8	.config	log	report
ci2-upstream-kcsan-gce	2020/07/06 09:00	upstream	dcb7fd82c75e	ac5a135b	.config	log	report
ci2-upstream-kcsan-gce	2020/07/02 00:01	upstream	edb543cfe5db	bed10395	.config	log	report
ci2-upstream-kcsan-gce	2020/06/29 08:07	upstream	9ebcfadb0610	0375051c	.config	log	report
ci2-upstream-kcsan-gce	2020/06/22 02:23	upstream	64677779e896	4f2acff9	.config	log	report