rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...0: (2 ticks this GP) idle=1da/1/0x4000000000000000 softirq=10179/10179 fqs=5250 
	(detected by 1, t=10502 jiffies, g=9089, q=491)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6815 Comm: syz-executor577 Not tainted 5.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x20 kernel/kcov.c:284
Code: 66 2e 0f 1f 84 00 00 00 00 00 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 cc fe ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 <48> 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 ae fe ff ff 0f 1f 40 00
RSP: 0018:ffffc90000007de0 EFLAGS: 00000046
RAX: 0000000000010202 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8880918965c0 RSI: 0000000000000000 RDI: 000000000000003f
RBP: 0000000000000001 R08: 0000000000000001 R09: ffff888091896e88
R10: fffffbfff155caa9 R11: 0000000000000000 R12: ffff8880ae627740
R13: ffff8880ae627840 R14: ffff88809e559340 R15: dffffc0000000000
FS:  00000000006e9880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000610 CR3: 00000000a7343000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 cpu_max_bits_warn include/linux/cpumask.h:137 [inline]
 cpumask_check include/linux/cpumask.h:144 [inline]
 cpumask_test_cpu include/linux/cpumask.h:367 [inline]
 trace_hrtimer_expire_exit include/trace/events/timer.h:279 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1523 [inline]
 __hrtimer_run_queues+0x200/0xfc0 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1646
 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: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+0x18f/0x220 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:765 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x8c/0xe0 kernel/locking/spinlock.c:191
Code: 48 c7 c0 40 b5 b4 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 37 48 83 3d ab 0c cc 01 00 74 22 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 45 65 66 f9 65 8b 05 0e 56 19 78
RSP: 0018:ffffc900019d72c0 EFLAGS: 00000286
RAX: 1ffffffff13696a8 RBX: 0000000000000286 RCX: 1ffffffff155d0f2
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff88809e5592e8 R08: 0000000000000000 R09: 0000000000000001
R10: fffffbfff18b215d R11: 0000000000000000 R12: 0000000000000286
R13: 161f1b8dc6fbfcc5 R14: ffff88809e559000 R15: 0000000000000000
 spin_unlock_irqrestore include/linux/spinlock.h:408 [inline]
 taprio_change+0x1fdc/0x2960 net/sched/sch_taprio.c:1556
 taprio_init+0x52e/0x670 net/sched/sch_taprio.c:1669
 qdisc_create+0x4b6/0x12e0 net/sched/sch_api.c:1245
 tc_modify_qdisc+0x4c8/0x1990 net/sched/sch_api.c:1661
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5460
 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x443799
Code: Bad RIP value.
RSP: 002b:00007ffe34d2c198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443799
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 00007ffe34d2c1a0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb
R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffe34d2c1b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 0.000 msecs