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: 2916 at kernel/sched/core.c:3013 rq_unlock kernel/sched/sched.h:1326 [inline]
WARNING: CPU: 1 PID: 2916 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: 2916 Comm: syz-executor.2 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: 0000:ffffc90000da8bd8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff920001b517d RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff81612ed0 RDI: ffff8881f6826340
RBP: ffff8881f6826340 R08: 0000000000000033 R09: ffffffff89bcb4a3
R10: 00000000000021e2 R11: 0000000000000001 R12: ffffffff81612ed0
R13: ffffc90000da8d00 R14: ffff8881f68266c0 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:csd_lock_wait kernel/smp.c:108 [inline]
RIP: 0010:smp_call_function_single+0x192/0x4f0 kernel/smp.c:382
Code: 10 8b 7c 24 1c 48 8d 74 24 40 48 89 44 24 50 48 8b 44 24 08 48 89 44 24 58 e8 4a fa ff ff 41 89 c5 eb 07 e8 20 09 0b 00 f3 90 <44> 8b 64 24 48 31 ff 41 83 e4 01 44 89 e6 e8 8b 05 0b 00 45 85 e4
RSP: 0000:ffffc90010daf9c0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff920021b5f3c RCX: ffffffff81694475
RDX: ffff88821149e3c0 RSI: ffffffff81694460 RDI: 0000000000000005
RBP: ffffc90010dafa88 R08: 0000000000000001 R09: ffff8880ae636dc7
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000040
 smp_call_function_many_cond+0x1a4/0x990 kernel/smp.c:518
 on_each_cpu_cond_mask+0x50/0x240 kernel/smp.c:765
 __flush_tlb_others arch/x86/include/asm/paravirt.h:74 [inline]
 flush_tlb_others arch/x86/mm/tlb.c:847 [inline]
 flush_tlb_mm_range+0x2a0/0x500 arch/x86/mm/tlb.c:934
 flush_tlb_page arch/x86/include/asm/tlbflush.h:235 [inline]
 ptep_clear_flush+0x12b/0x160 mm/pgtable-generic.c:97
 wp_page_copy+0x912/0x1870 mm/memory.c:2728
 do_wp_page+0x3ff/0x11a0 mm/memory.c:2972
 handle_pte_fault mm/memory.c:4229 [inline]
 __handle_mm_fault mm/memory.c:4346 [inline]
 handle_mm_fault+0x32cd/0x4690 mm/memory.c:4444
 do_user_addr_fault+0x598/0xbf0 arch/x86/mm/fault.c:1372
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538
RIP: 0033:0x410047
Code: 00 00 41 83 c5 01 48 81 c3 a0 00 00 00 41 83 fd 10 75 d7 bf 91 2f 4c 00 31 c0 e8 d4 2f ff ff c6 43 f8 01 44 89 6b f4 48 89 df <c6> 43 15 00 c7 43 fc 00 00 00 00 c7 03 00 00 00 00 e8 13 3f ff ff
RSP: 002b:00007ffd47a96f60 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000118cfec RCX: 00007ffd47a97028
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000118cfec
RBP: 000000000118cfe0 R08: 00007ffd47a97030 R09: 00000000011925f8
R10: ffffffffffffff87 R11: 0000000000000006 R12: 00000000011925a0
R13: 0000000000000001 R14: 0000000000000a11 R15: 000000000118cfec
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..