rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1):
------------[ cut here ]------------
IRQs not enabled as expected
WARNING: CPU: 0 PID: 7498 at kernel/sched/core.c:2675 try_invoke_on_locked_down_task+0x18b/0x320 kernel/sched/core.c:2675
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 7498 Comm: syz-executor.3 Not tainted 5.8.0-rc2-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+0x1f0/0x31e lib/dump_stack.c:118
 panic+0x264/0x7a0 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 exc_invalid_op+0x1fb/0x370 arch/x86/kernel/traps.c:235
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563
RIP: 0010:try_invoke_on_locked_down_task+0x18b/0x320 kernel/sched/core.c:2675
Code: 48 89 df e8 87 38 09 00 4c 89 f7 e8 0f e2 ce 06 e9 b5 00 00 00 c6 05 72 a6 18 08 01 48 c7 c7 8c a0 e7 88 31 c0 e8 05 aa f5 ff <0f> 0b e9 15 ff ff ff 48 c7 c1 70 54 6d 89 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90000007c50 EFLAGS: 00010046
RAX: 19265504b209ad00 RBX: ffff8881bc5a8d48 RCX: ffff8881bc5a84c0
RDX: 0000000080010002 RSI: 0000000080010002 RDI: 0000000000000000
RBP: ffff8881bc5a8d8c R08: ffffffff815d9519 R09: ffffed1015d041c3
R10: ffffed1015d041c3 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888090f46040 R14: ffff888090f463c0 R15: dffffc0000000000
 rcu_print_task_stall kernel/rcu/tree_stall.h:269 [inline]
 print_other_cpu_stall kernel/rcu/tree_stall.h:477 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:636 [inline]
 rcu_pending kernel/rcu/tree.c:3471 [inline]
 rcu_sched_clock_irq+0x13dc/0x1fd0 kernel/rcu/tree.c:2486
 update_process_times+0x12c/0x180 kernel/time/timer.c:1726
 tick_sched_handle kernel/time/tick-sched.c:176 [inline]
 tick_sched_timer+0x254/0x410 kernel/time/tick-sched.c:1320
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x42d/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+0x133/0x230 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:lock_acquire+0x1bf/0x720 kernel/locking/lockdep.c:4962
Code: c1 e8 03 80 3c 10 00 74 0c 48 c7 c7 f0 be 2b 89 e8 f6 f4 59 00 48 83 3d ee 60 d2 07 00 0f 84 09 05 00 00 48 8b 7c 24 10 57 9d <0f> 1f 44 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 50 0f 85 e0
RSP: 0018:ffffc90026797688 EFLAGS: 00000282
RAX: 1ffffffff12577de RBX: 0000000000000000 RCX: 0c83e464bf9568b4
RDX: dffffc0000000000 RSI: ffff8881bc5a8db8 RDI: 0000000000000282
RBP: 1ffff110378b51b1 R08: dffffc0000000000 R09: fffffbfff163329f
R10: fffffbfff163329f R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: ffff8881bc5a8d8c R15: 0000000000000000
 rcu_lock_acquire+0x20/0x30 include/linux/rcupdate.h:241
 rcu_read_lock include/linux/rcupdate.h:634 [inline]
 lock_page_memcg+0x50/0x1c0 mm/memcontrol.c:1977
 page_remove_rmap+0x2b/0x4f0 mm/rmap.c:1328
 zap_pte_range+0xaeb/0x1dc0 mm/memory.c:1089
 zap_pmd_range mm/memory.c:1193 [inline]
 zap_pud_range mm/memory.c:1222 [inline]
 zap_p4d_range mm/memory.c:1243 [inline]
 unmap_page_range+0xa75/0xbd0 mm/memory.c:1264
 unmap_vmas+0x15d/0x2c0 mm/memory.c:1341
 exit_mmap+0x276/0x530 mm/mmap.c:3150
 __mmput+0x113/0x370 kernel/fork.c:1093
 exit_mm+0x4cd/0x550 kernel/exit.c:482
 do_exit+0x584/0x1f80 kernel/exit.c:792
 do_group_exit+0x161/0x2d0 kernel/exit.c:903
 get_signal+0x13cf/0x1d60 kernel/signal.c:2739
 do_signal+0x33/0x610 arch/x86/kernel/signal.c:810
 exit_to_usermode_loop arch/x86/entry/common.c:212 [inline]
 __prepare_exit_to_usermode+0xd7/0x1e0 arch/x86/entry/common.c:246
 do_syscall_64+0x7f/0xe0 arch/x86/entry/common.c:368
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cb19
Code: Bad RIP value.
RSP: 002b:00007f61f96c9cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000078bf08 RCX: 000000000045cb19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000078bf08
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007fff7f2c3eef R14: 00007f61f96ca9c0 R15: 000000000078bf0c
Kernel Offset: disabled