INFO: rcu detected stall in do

INFO: rcu detected stall in do_idle
Status: upstream: reported C repro on 2018/10/13 07:31
Reported-by: syzbot+385468161961cee80c31@syzkaller.appspotmail.com
First crash: 933d, last: 29d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: no output from test machine (log)
Repro: C syz .config

Fix bisection: failed (bisect log)

duplicates (1):
Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
INFO: rcu detected stall in pagemap_read	C			2	850d	887d	0/21	closed as dup on 2018/11/07 15:39

similar bugs (3):
Kernel	Title	Count	Last	Reported	Patched	Status
android-414	INFO: rcu detected stall in do_idle	1	904d	904d	0/1	auto-closed as invalid on 2019/03/13 10:31
linux-4.19	INFO: rcu detected stall in do_idle	1	443d	443d	0/1	auto-closed as invalid on 2020/04/18 00:25
linux-4.14	INFO: rcu detected stall in do_idle	4	537d	543d	0/1	auto-closed as invalid on 2020/01/14 08:59

Sample crash report:

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1):
------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at kernel/sched/core.c:3013 rq_unlock kernel/sched/sched.h:1326 [inline]
WARNING: CPU: 1 PID: 0 at kernel/sched/core.c:3013 try_invoke_on_locked_down_task+0x214/0x2c0 kernel/sched/core.c:3019
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.9.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x198/0x1fd lib/dump_stack.c:118
 panic+0x347/0x7c0 kernel/panic.c:231
 __warn.cold+0x20/0x46 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:try_invoke_on_locked_down_task+0x214/0x2c0 kernel/sched/core.c:3013
Code: 45 31 f6 49 39 c0 74 3a 8b 74 24 38 49 8d 78 18 4c 89 04 24 e8 ad 9a 08 00 4c 8b 04 24 4c 89 c7 e8 01 40 a6 06 e9 29 ff ff ff <0f> 0b e9 86 fe ff ff 4c 89 ee 48 89 ef 41 ff d4 41 89 c6 e9 11 ff
RSP: 0018:ffffc90000da8bd8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff920001b517d RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff81612ed0 RDI: ffff888095f7c0c0
RBP: ffff888095f7c0c0 R08: 0000000000000033 R09: ffffffff89bcb4a3
R10: 00000000000005a1 R11: 0000000000000001 R12: ffffffff81612ed0
R13: ffffc90000da8d00 R14: ffff888095f7c440 R15: ffff8880ae736c00
 rcu_print_task_stall kernel/rcu/tree_stall.h:267 [inline]
 print_other_cpu_stall kernel/rcu/tree_stall.h:475 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:634 [inline]
 rcu_pending kernel/rcu/tree.c:3637 [inline]
 rcu_sched_clock_irq.cold+0x92e/0xccd kernel/rcu/tree.c:2519
 update_process_times+0x25/0xa0 kernel/time/timer.c:1710
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
 tick_sched_timer+0x1d1/0x2a0 kernel/time/tick-sched.c:1328
 __run_hrtimer kernel/time/hrtimer.c:1524 [inline]
 __hrtimer_run_queues+0x1d5/0xfc0 kernel/time/hrtimer.c:1588
 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1650
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0xb2/0xf0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: ff 4c 89 ef e8 13 2e bd f9 e9 8e fe ff ff 48 89 df e8 06 2e bd f9 eb 8a cc cc cc cc e9 07 00 00 00 0f 00 2d 34 96 51 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d 24 96 51 00 f4 c3 cc cc 55 53 e8 79
RSP: 0018:ffffc90000d3fd10 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff15645e9
RDX: ffff8880a963c340 RSI: ffffffff87f72910 RDI: 0000000000000000
RBP: ffff88821a8d3064 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88821a8d3064
R13: 1ffff920001a7fac R14: ffff88821a8d3065 R15: 0000000000000001
 arch_safe_halt arch/x86/include/asm/paravirt.h:150 [inline]
 acpi_safe_halt+0x95/0x180 drivers/acpi/processor_idle.c:111
 acpi_idle_do_entry+0x15c/0x1b0 drivers/acpi/processor_idle.c:524
 acpi_idle_enter+0x403/0xac0 drivers/acpi/processor_idle.c:650
 cpuidle_enter_state+0x150/0xa70 drivers/cpuidle/cpuidle.c:243
 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:355
 call_cpuidle kernel/sched/idle.c:132 [inline]
 cpuidle_idle_call kernel/sched/idle.c:213 [inline]
 do_idle+0x48e/0x730 kernel/sched/idle.c:273
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:369
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1550):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce	2020/09/09 15:43	upstream	34d4ddd3	0ea7a887	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/09/02 12:11	upstream	b765a32a	abf9ba4f	.config	log	report	syz	C
ci-upstream-kasan-gce	2020/09/02 10:07	upstream	b765a32a	abf9ba4f	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/08/16 15:23	upstream	d84835b1	424dd8e7	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/08/14 19:22	upstream	a1d21081	424dd8e7	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/08/01 09:26	upstream	d8b9faec	d895b3be	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/07/23 04:36	upstream	8c26c87b	340ea530	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/07/23 01:36	upstream	8c26c87b	340ea530	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/07/21 21:02	upstream	4fa640dc	21f1765e	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/07/07 21:00	upstream	7cc2a8ea	51095195	.config	log	report	syz	C
ci-upstream-kasan-gce	2020/07/06 23:37	upstream	7cc2a8ea	51095195	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/07/06 23:18	upstream	7cc2a8ea	51095195	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/07/06 23:15	upstream	7cc2a8ea	51095195	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2019/09/11 13:40	upstream	3120b9a6	a60cb4cd	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2019/09/08 23:48	upstream	950b07c1	a60cb4cd	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2018/10/13 03:22	upstream	6b3944e4	caf12900	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/09/01 00:54	upstream	f75aef39	d5a3ae1f	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/07/06 21:38	upstream	7cc2a8ea	51095195	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/07/03 07:21	upstream	cd77006e	bed10395	.config	log	report	syz	C
ci-upstream-bpf-kasan-gce	2020/12/18 08:17	bpf	8bee6833	04201c06	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/07/20 04:13	net	a463fa2c	9c812472	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/07/06 21:39	net	1ca0fafd	51095195	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/07/03 05:19	net	e4b9a72d	bed10395	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/07/06 19:39	net-next	e44f65fd	51095195	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/07/03 07:21	net-next	23212a70	bed10395	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/09/06 19:38	linux-next	7a695657	abf9ba4f	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/08/05 02:13	linux-next	01830e6c	80a06902	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2019/09/15 19:52	linux-next	6d028043	32d59357	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2019/07/27 12:00	linux-next	fde50b96	c85e1c5b	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2018/10/21 09:46	upstream	b0d04fb5	ecb386fe	.config	log	report	syz
ci-upstream-kasan-gce-root	2021/02/05 13:29	upstream	dd86e7fa	23a562df	.config	log	report			info	INFO: rcu detected stall in do_idle
ci-upstream-kasan-gce	2021/01/15 18:27	upstream	5ee88057	65a7a854	.config	log	report			info
ci-upstream-kasan-gce-root	2021/01/11 13:58	upstream	7c53f6b6	2c1f2513	.config	log	report			info
ci-upstream-kasan-gce-selinux-root	2020/12/17 22:21	upstream	accefff5	04201c06	.config	log	report			info
ci-upstream-kasan-gce	2020/09/12 05:23	upstream	e8878ab8	79fb24e2	.config	log	report
ci-upstream-kasan-gce	2020/08/15 02:21	upstream	7fca4dee	424dd8e7	.config	log	report
ci-upstream-kasan-gce	2020/08/13 00:39	upstream	fb893de3	bc15f7db	.config	log	report
ci-upstream-kasan-gce	2020/07/27 11:33	upstream	92ed3019	51265195	.config	log	report
ci-upstream-kasan-gce	2020/07/16 13:57	upstream	994e99a9	f3bec699	.config	log	report
ci-upstream-kasan-gce	2020/07/13 21:05	upstream	11ba4688	f90ec899	.config	log	report
ci-upstream-kasan-gce	2020/07/12 02:40	upstream	a581387e	18d18b59	.config	log	report
ci-upstream-kasan-gce	2020/07/05 12:29	upstream	7cc2a8ea	51095195	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 12:15	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 11:24	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 10:30	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 09:31	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 08:47	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 08:05	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 07:23	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 06:29	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/01/08 05:42	upstream	ae608821	6738e0b3	.config	log	report
ci-upstream-kasan-gce	2018/08/16 20:17	upstream	f91e6544	9ccc1d45	.config	log	report
ci-upstream-bpf-kasan-gce	2021/01/05 19:48	bpf	04901aab	a0234d98	.config	log	report			info
ci-upstream-bpf-kasan-gce	2021/01/05 07:49	bpf	04901aab	2a28ff1f	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/29 03:12	bpf	a61daaf3	8259d56c	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/28 06:32	bpf	a61daaf3	2242f77f	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/28 02:01	bpf	a61daaf3	2242f77f	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/24 21:38	bpf	a61daaf3	c2c1d1dd	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/21 15:06	bpf	d467d80d	04201c06	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/20 23:32	bpf	d467d80d	04201c06	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/20 05:24	bpf	d467d80d	04201c06	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/20 00:37	bpf	d467d80d	04201c06	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/19 12:33	bpf	d467d80d	04201c06	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/19 00:05	bpf	d467d80d	04201c06	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/12/07 02:37	bpf	12c8a8ca	c521566d	.config	log	report			info
ci-upstream-bpf-kasan-gce	2020/11/26 23:24	bpf	9a44bc94	1d2b823e	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/09/11 18:27	net	ee460417	adfb8b4e	.config	log	report
ci-upstream-net-this-kasan-gce	2020/09/03 03:01	net	1996cf46	abf9ba4f	.config	log	report
ci-upstream-net-this-kasan-gce	2020/08/29 15:57	net	c8146fe2	d5a3ae1f	.config	log	report
ci-upstream-net-this-kasan-gce	2020/08/23 17:17	net	eeaac363	cef5ae68	.config	log	report
ci-upstream-net-this-kasan-gce	2020/07/23 03:27	net	2c4dc314	340ea530	.config	log	report
ci-upstream-bpf-next-kasan-gce	2020/12/15 05:59	bpf-next	2e33f831	97183ed7	.config	log	report			info
ci-upstream-bpf-next-kasan-gce	2020/12/09 23:19	bpf-next	08c6a2f6	c090b4da	.config	log	report			info
ci-upstream-bpf-next-kasan-gce	2020/12/06 18:17	bpf-next	34da8721	f12ba0c5	.config	log	report			info
ci-upstream-net-kasan-gce	2020/11/12 16:24	net-next	e545f865	77a55c8e	.config	log	report			info
ci-upstream-bpf-next-kasan-gce	2020/09/19 11:52	bpf-next	b6ed6cf4	53ce8104	.config	log	report			info
ci-upstream-net-kasan-gce	2020/09/04 12:12	net-next	3ab1270b	abf9ba4f	.config	log	report
ci-upstream-net-kasan-gce	2020/08/08 06:16	net-next	bfdd5aaa	ff51e522	.config	log	report
ci-upstream-net-kasan-gce	2020/07/12 15:02	net-next	71930d61	115e1930	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2020/11/27 20:00	linux-next	6174f052	486f93ef	.config	log	report			info
ci2-upstream-usb	2020/10/30 08:25	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	aee9ddb1	a0c7169a	.config	log	report			info
ci2-upstream-usb	2020/03/28 03:10	https://github.com/google/kasan.git usb-fuzzer	e17994d1	831e9a81	.config	log	report
ci2-upstream-usb	2020/03/27 14:23	https://github.com/google/kasan.git usb-fuzzer	e17994d1	831e9a81	.config	log	report
ci2-upstream-usb	2020/03/27 07:51	https://github.com/google/kasan.git usb-fuzzer	e17994d1	6d25c5a0	.config	log	report
ci2-upstream-usb	2020/03/26 14:38	https://github.com/google/kasan.git usb-fuzzer	e17994d1	6d25c5a0	.config	log	report
ci2-upstream-usb	2020/03/23 20:10	https://github.com/google/kasan.git usb-fuzzer	e17994d1	84f999d6	.config	log	report
ci2-upstream-usb	2020/03/21 16:20	https://github.com/google/kasan.git usb-fuzzer	e17994d1	aa6c6a55	.config	log	report
ci2-upstream-usb	2020/02/19 01:18	https://github.com/google/kasan.git usb-fuzzer	7f0cd6c7	135c18aa	.config	log	report