rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): ------------[ cut here ]------------ WARNING: CPU: 0 PID: 19659 at kernel/sched/core.c:3013 rq_unlock kernel/sched/sched.h:1325 [inline] WARNING: CPU: 0 PID: 19659 at kernel/sched/core.c:3013 try_invoke_on_locked_down_task+0x12d/0x270 kernel/sched/core.c:3019 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 19659 Comm: syz-executor.0 Not tainted 5.9.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d6/0x29e lib/dump_stack.c:118 panic+0x2c0/0x800 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234 exc_invalid_op+0x16/0x40 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+0x12d/0x270 kernel/sched/sched.h:1325 Code: f8 48 c1 e8 03 42 8a 04 38 84 c0 0f 85 10 01 00 00 8b 74 24 18 48 89 ef e8 a0 47 09 00 4c 89 ef e8 98 2a dd 06 e9 a4 00 00 00 <0f> 0b e9 2b ff ff ff 48 c7 c1 34 48 8f 89 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc90000007c50 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff8880a99d43c0 RCX: 6390dc69f5e4a300 RDX: ffffc90000007d00 RSI: ffffffff8162d8e0 RDI: ffff88809e7ca0c0 RBP: ffffffff8162d8e0 R08: dffffc0000000000 R09: fffffbfff129f8f5 R10: fffffbfff129f8f5 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff894ff5c0 R14: ffff88809e7ca0c0 R15: dffffc0000000000 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+0x12bc/0x1eb0 kernel/rcu/tree.c:2519 update_process_times+0x130/0x1b0 kernel/time/timer.c:1710 tick_sched_handle kernel/time/tick-sched.c:176 [inline] tick_sched_timer+0x25e/0x410 kernel/time/tick-sched.c:1328 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x42d/0x930 kernel/time/hrtimer.c:1588 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1650 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 __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:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x302/0x450 kernel/smp.c:382 Code: 2f 44 89 ee 83 e6 01 31 ff e8 4a 08 0b 00 41 83 e5 01 75 14 e8 2f 04 0b 00 eb 45 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f3 90 <42> 0f b6 04 23 84 c0 75 0d 41 f6 07 01 74 22 e8 0a 04 0b 00 eb e8 RSP: 0018:ffffc9000239f7c0 EFLAGS: 00000246 RAX: ffffffff8169f816 RBX: 1ffff92000473efd RCX: 0000000000040000 RDX: ffffc90001e42000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000239f850 R08: ffffffff8169f7e6 R09: ffffed1015d26d11 R10: ffffed1015d26d11 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffc9000239f7e8 smp_call_function_many kernel/smp.c:577 [inline] smp_call_function kernel/smp.c:599 [inline] on_each_cpu+0x4d/0x1c0 kernel/smp.c:698 __purge_vmap_area_lazy+0x160/0x14a0 mm/vmalloc.c:1352 _vm_unmap_aliases+0x442/0x4d0 mm/vmalloc.c:1770 change_page_attr_set_clr+0x24b/0x5c0 arch/x86/mm/pat/set_memory.c:1732 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1789 [inline] set_memory_ro+0x5d/0x80 arch/x86/mm/pat/set_memory.c:1935 bpf_jit_binary_lock_ro include/linux/filter.h:815 [inline] bpf_int_jit_compile+0x84b4/0x8920 arch/x86/net/bpf_jit_comp.c:1929 bpf_prog_select_runtime+0x76d/0xa60 kernel/bpf/core.c:1807 bpf_migrate_filter net/core/filter.c:1290 [inline] bpf_prepare_filter+0xec2/0x1140 net/core/filter.c:1338 sk_attach_filter+0x1e/0x130 net/core/filter.c:1522 sock_setsockopt+0x1886/0x3260 net/core/sock.c:1078 __sys_setsockopt+0x502/0x870 net/socket.c:2128 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2140 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa978443c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000002e440 RCX: 000000000045d5b9 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000005 RBP: 000000000118d030 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000140 R11: 0000000000000246 R12: 000000000118cfec R13: 00007ffd10e06e5f R14: 00007fa9784449c0 R15: 000000000118cfec Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..