INFO: rcu detected stall in sys_clock

INFO: rcu detected stall in sys_clock_settime
Status: upstream: reported C repro on 2020/07/12 17:54
Reported-by: syzbot+f3bd350a4124f10acdae@syzkaller.appspotmail.com
First crash: 40d, last: 1d17h

Cause bisection: introduced by (bisect log):

commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: Sat Sep 29 00:59:43 2018 +0000

tc: Add support for configuring the taprio scheduler

Crash: INFO: rcu detected stall in corrupted (log)
Repro: C syz .config

Sample crash report:

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...0: (0 ticks this GP) idle=f06/1/0x4000000000000000 softirq=9334/9334 fqs=5250 
	(detected by 0, t=10502 jiffies, g=6253, q=367)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6815 Comm: syz-executor784 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__preempt_count_dec_and_test arch/x86/include/asm/preempt.h:94 [inline]
RIP: 0010:rcu_read_unlock_sched_notrace include/linux/rcupdate.h:772 [inline]
RIP: 0010:trace_hrtimer_cancel+0x257/0x2b0 include/trace/events/timer.h:290
Code: 0f 00 eb 24 e8 6a 53 0f 00 c6 05 3d c5 23 08 01 48 c7 c7 be 63 09 89 be 27 01 00 00 48 c7 c2 af d1 06 89 e8 6b bc f4 ff 31 f6 <65> ff 0d 9e 79 9c 7e 0f 94 c3 40 0f 94 c6 31 ff e8 04 56 0f 00 84
RSP: 0018:ffffc90000da8d98 EFLAGS: 00000046
RAX: ffffffff8165843f RBX: 0000000000000001 RCX: ffff88809f49a280
RDX: 0000000080010003 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1bc16d674ec9cd83 R08: ffffffff81658436 R09: fffffbfff131b08e
R10: fffffbfff131b08e R11: 0000000000000000 R12: ffff8880a6638b40
R13: ffff8880ae9276d0 R14: ffff8880a6638b40 R15: ffff8880ae9276c0
FS:  0000000001cdf880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000610 CR3: 00000000a7c6c000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 debug_deactivate kernel/time/hrtimer.c:483 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1488 [inline]
 __hrtimer_run_queues+0x291/0x930 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0xf0/0x260 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+0x94/0xf0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline]
RIP: 0010:on_each_cpu+0x187/0x1f0 kernel/smp.c:701
Code: c1 e8 03 42 80 3c 20 00 74 0c 48 c7 c7 b8 d5 4b 89 e8 7d 25 4a 00 48 83 3d 1d ef e1 07 00 74 6a e8 0e f1 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 4a d2 e6 ff 65 8b 1d 4f 17 98 7e
RSP: 0018:ffffc90005377e48 EFLAGS: 00000282
RAX: ffffffff8169e6a2 RBX: 0000000000000282 RCX: ffff88809f49a280
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffffffff8166ef16 R08: ffffffff817a8b50 R09: ffffed1015d24eb1
R10: ffffed1015d24eb1 R11: 0000000000000000 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff81650780
 clock_was_set+0x18/0x20 kernel/time/hrtimer.c:872
 do_settimeofday64+0x487/0x5c0 kernel/time/timekeeping.c:1257
 __do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline]
 __x64_sys_clock_settime+0x196/0x1c0 kernel/time/posix-timers.c:1067
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x443859
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 0f fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffcc02dad58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443859
RDX: 0000000000443859 RSI: 0000000020000400 RDI: 0000000000000000
RBP: 00007ffcc02dad60 R08: 0000000001bbbbbb R09: 0000000001bbbbbb
R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffcc02dad70
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Crashes (57):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Maintainers
ci-upstream-kasan-gce-smack-root	2020/08/06 07:29	upstream	fffe3ae0	0487ea6f	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/28 18:43	upstream	92ed3019	cb93dc6a	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/24 04:03	upstream	d15be546	70c104a1	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/15 10:24	upstream	e9919e11	609fb517	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/09 17:20	upstream	0bddd227	bc238812	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root	2020/07/09 10:05	upstream	0bddd227	bc238812	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/09 08:44	upstream	0bddd227	bc238812	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/09 07:14	upstream	0bddd227	bc238812	.config	log	report	syz	C	davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-smack-root	2020/07/08 20:29	upstream	7cc2a8ea	51095195	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/08 17:45	upstream	7cc2a8ea	51095195	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/08/03 15:43	linux-next	01830e6c	196277c4	.config	log	report	syz	C	linux-kernel@vger.kernel.org, mingo@redhat.com, rostedt@goodmis.org
ci-upstream-linux-next-kasan-gce-root	2020/07/20 06:35	linux-next	4c43049f	9c812472	.config	log	report	syz	C	davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root	2020/07/13 05:06	linux-next	d31958b3	9ebcc5b1	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/07/11 16:34	linux-next	d31958b3	18d18b59	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/07/11 08:56	linux-next	d31958b3	18d18b59	.config	log	report	syz	C	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/08/10 01:54	upstream	9420f1ce	70301872	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/08/09 15:04	upstream	06a81c1c	70301872	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/08/09 07:02	upstream	06a81c1c	f721e4a0	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/08/08 16:23	upstream	449dc8c9	f721e4a0	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-smack-root	2020/08/08 04:04	upstream	5631c5e0	ff51e522	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root	2020/08/03 01:39	upstream	5a30a789	63a73341	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-root	2020/08/02 18:28	upstream	ac3a0c84	63a73341	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-smack-root	2020/08/02 01:41	upstream	d52daa86	d895b3be	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/30 20:42	upstream	83bdc727	233283a1	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-smack-root	2020/07/27 04:00	upstream	92ed3019	51265195	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/26 11:50	upstream	04300d66	51265195	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-root	2020/07/23 18:26	upstream	d15be546	70c104a1	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-smack-root	2020/07/23 17:20	upstream	d15be546	70c104a1	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-smack-root	2020/07/22 23:03	upstream	8c26c87b	340ea530	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/19 23:44	upstream	92188b41	9c812472	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root	2020/07/19 05:56	upstream	f932d58a	9c812472	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/19 05:54	upstream	f932d58a	9c812472	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-root	2020/07/17 15:23	upstream	88825726	9c812472	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/14 19:09	upstream	0dc589da	609fb517	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/10 23:12	upstream	a581387e	18d18b59	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/10 09:48	upstream	42f82040	edf162e8	.config	log	report			linux-kernel@vger.kernel.org, mingo@redhat.com, rostedt@goodmis.org
ci-upstream-kasan-gce-selinux-root	2020/07/10 08:19	upstream	42f82040	edf162e8	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/08 23:29	upstream	0bddd227	bc238812	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/07 19:13	upstream	7cc2a8ea	51095195	.config	log	report			fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/07 02:54	upstream	7cc2a8ea	51095195	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/06 20:07	upstream	7cc2a8ea	51095195	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-selinux-root	2020/07/06 06:49	upstream	7cc2a8ea	51095195	.config	log	report			fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/05 17:58	upstream	7cc2a8ea	51095195	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/05 07:32	upstream	7cc2a8ea	51095195	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root	2020/07/03 23:25	upstream	7cc2a8ea	51095195	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root	2020/07/02 15:56	upstream	cd77006e	bed10395	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/08/05 10:00	linux-next	01830e6c	b7129355	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/07/26 06:39	linux-next	26027945	1f7cc1ca	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/07/22 07:56	linux-next	de2e69cf	128cd85f	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root	2020/07/20 14:25	linux-next	ab8be66e	4285ffa3	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/07/12 08:04	linux-next	d31958b3	115e1930	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/07/08 14:16	linux-next	9e50b94b	51095195	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root	2020/07/06 23:37	linux-next	9e50b94b	51095195	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root	2020/07/06 11:46	linux-next	9e50b94b	51095195	.config	log	report			davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root	2020/07/06 01:23	linux-next	9e50b94b	51095195	.config	log	report			linux-kernel@vger.kernel.org, tglx@linutronix.de