INFO: rcu_sched detected stalls on CPUs/tasks: (detected by 1, t=100002 jiffies, g=54660, c=54659, q=372) All QSes seen, last rcu_sched kthread activity 100002 (4295089489-4294989487), jiffies_till_next_fqs=3, root ->qsmask 0x0 syz-executor1 R running task 59056 15245 4621 0x00000008 Call Trace: sched_show_task+0x610/0x760 kernel/sched/core.c:5332 print_other_cpu_stall kernel/rcu/tree.c:1441 [inline] check_cpu_stall kernel/rcu/tree.c:1559 [inline] __rcu_pending kernel/rcu/tree.c:3244 [inline] rcu_pending kernel/rcu/tree.c:3291 [inline] rcu_check_callbacks+0x2632/0x29a0 kernel/rcu/tree.c:2646 update_process_times+0x132/0x1a0 kernel/time/timer.c:1636 tick_sched_handle kernel/time/tick-sched.c:164 [inline] tick_sched_timer+0x3bf/0x520 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0xc74/0x1680 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:868 RIP: 0010:__nr_to_section include/linux/mmzone.h:1159 [inline] RIP: 0010:pfn_valid include/linux/mmzone.h:1242 [inline] RIP: 0010:my_virt_addr_valid mm/kmsan/kmsan_instr.c:129 [inline] RIP: 0010:msan_get_shadow_origin_ptr+0xef/0x300 mm/kmsan/kmsan_instr.c:271 Code: d6 48 d3 ee 48 85 f6 75 3f 48 89 d1 48 c1 e9 2e 75 36 48 8b 0c 25 20 cf a0 8b 48 85 c9 74 29 48 89 d6 48 c1 ee 22 48 8b 0c f1 <48> 85 c9 74 19 48 c1 ea 1b 83 e2 7f 48 c1 e2 05 48 01 d1 74 09 f6 RSP: 0018:ffff88010a02f2c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff88018a02f398 RBX: ffffffff8ba11000 RCX: ffff88021fff1000 RDX: 000000010a02f398 RSI: 0000000000000000 RDI: ffff88010a02f398 RBP: ffff88010a02f320 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff8117d090 R12: 0000000000000004 R13: ffff8801b6463b00 R14: ffffffff8ba10000 R15: ffff88010a02f398 __msan_metadata_ptr_for_load_4+0x10/0x20 mm/kmsan/kmsan_instr.c:349 csd_lock_wait kernel/smp.c:108 [inline] smp_call_function_single+0x363/0x500 kernel/smp.c:302 smp_call_function_many+0x672/0xe30 kernel/smp.c:434 smp_call_function kernel/smp.c:492 [inline] on_each_cpu+0xe3/0x190 kernel/smp.c:602 cpa_flush_range arch/x86/mm/pageattr.c:215 [inline] change_page_attr_set_clr+0x1845/0x2020 arch/x86/mm/pageattr.c:1515 change_page_attr_clear arch/x86/mm/pageattr.c:1533 [inline] set_memory_ro+0xe1/0x130 arch/x86/mm/pageattr.c:1762 bpf_jit_binary_lock_ro include/linux/filter.h:690 [inline] bpf_int_jit_compile+0x818f/0x86a0 arch/x86/net/bpf_jit_comp.c:1168 bpf_prog_select_runtime+0x97f/0xa20 kernel/bpf/core.c:1498 bpf_migrate_filter net/core/filter.c:1263 [inline] bpf_prepare_filter+0x1d21/0x1da0 net/core/filter.c:1311 __get_filter+0x5dd/0x810 net/core/filter.c:1504 sk_attach_filter+0x72/0x2e0 net/core/filter.c:1519 sock_setsockopt+0x36ba/0x48c0 net/core/sock.c:935 __sys_setsockopt+0x339/0x540 net/socket.c:1907 __do_sys_setsockopt net/socket.c:1922 [inline] __se_sys_setsockopt net/socket.c:1919 [inline] __x64_sys_setsockopt+0x15c/0x1c0 net/socket.c:1919 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x455e29 Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f05e9e25c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f05e9e266d4 RCX: 0000000000455e29 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000013 RBP: 000000000072bff0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004c173e R14: 00000000004d1ed0 R15: 0000000000000002 rcu_sched kthread starved for 100002 jiffies! g54660 c54659 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 RCU grace-period kthread stack dump: rcu_sched R running task 61768 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x652/0x780 kernel/sched/core.c:3507 schedule+0x1cc/0x300 kernel/sched/core.c:3551 schedule_timeout+0x416/0x5b0 kernel/time/timer.c:1801 rcu_gp_kthread+0x1ed1/0x3a40 kernel/rcu/tree.c:2179 kthread+0x473/0x4b0 kernel/kthread.c:247 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415