rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...0: (0 ticks this GP) idle=a96/1/0x4000000000000000 softirq=7931/7931 fqs=5250 
	(detected by 0, t=10502 jiffies, g=6077, q=355)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6784 Comm: syz-executor352 Not tainted 5.8.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_memory_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:check_memory_region+0x30/0x2f0 mm/kasan/generic.c:192
Code: 41 54 53 b0 01 48 85 f6 0f 84 0d 02 00 00 48 89 fb 48 f7 d3 48 39 f3 0f 82 8a 02 00 00 48 89 fb 48 c1 eb 2f 81 fb fe ff 01 00 <0f> 86 77 02 00 00 49 89 fc 49 c1 ec 03 49 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90000da8d60 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 000000000001ffff RCX: ffffffff81654692
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff896d2b68
RBP: ffff8880ae927580 R08: ffffffff81654669 R09: ffffed1015d24eb1
R10: ffffed1015d24eb1 R11: 0000000000000000 R12: ffff8880a785b340
R13: 1ffff11015d24ed2 R14: ffffc90000da8e50 R15: ffff8880a785b340
FS:  0000000001be8880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000610 CR3: 000000009ec19000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:56 [inline]
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
 cpumask_test_cpu include/linux/cpumask.h:367 [inline]
 trace_hrtimer_expire_entry+0x1a2/0x2d0 include/trace/events/timer.h:232
 __run_hrtimer kernel/time/hrtimer.c:1517 [inline]
 __hrtimer_run_queues+0x3ef/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:711
 </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+0xb9/0x130 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:587
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:765 [inline]
RIP: 0010:on_each_cpu+0x187/0x1f0 kernel/smp.c:702
Code: c1 e8 03 42 80 3c 20 00 74 0c 48 c7 c7 f0 c7 2b 89 e8 dd ea 49 00 48 83 3d 65 28 c2 07 00 74 6a e8 7e ec 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 5a fa e6 ff 65 8b 1d 5f 5e 98 7e
RSP: 0018:ffffc90000d8fe38 EFLAGS: 00000286
RAX: ffffffff81699f92 RBX: 0000000000000286 RCX: ffff8880936c4100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffffffff8166a716 R08: ffffffff817a2d20 R09: ffffed1015d24eb1
R10: ffffed1015d24eb1 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000286 R14: 0000000000000000 R15: ffffffff8164c430
 clock_was_set+0x18/0x20 kernel/time/hrtimer.c:872
 do_settimeofday64+0x41e/0x520 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+0x73/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x443849
Code: Bad RIP value.
RSP: 002b:00007ffc9a7e6548 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443849
RDX: 0000000000443849 RSI: 0000000020000400 RDI: 0000000000000000
RBP: 00007ffc9a7e6550 R08: 0000000001bbbbbb R09: 0000000001bbbbbb
R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffc9a7e6560
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000