INFO: rcu_sched detected stalls on CPUs/tasks: (detected by 0, t=100002 jiffies, g=29423, c=29422, q=5) All QSes seen, last rcu_sched kthread activity 100002 (4295012328-4294912326), jiffies_till_next_fqs=3, root ->qsmask 0x0 syz-executor0 R running task 59328 9212 4551 0x00000008 Call Trace: sched_show_task+0x600/0x730 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+0x2627/0x2990 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+0x3a6/0x500 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0xbfc/0x15b0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x458/0x13d0 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1028 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:868 RIP: 0010:msan_get_shadow_origin_ptr+0x3f/0x2e0 mm/kmsan/kmsan_instr.c:260 Code: e0 1a 8a 49 c7 c6 00 c0 1a 8a 85 d2 4c 0f 45 f0 48 c7 c0 00 f0 1a 8a 48 c7 c3 00 d0 1a 8a 48 0f 45 d8 80 3c 25 00 b0 1a 8a 00 <0f> 84 0e 02 00 00 65 4c 8b 2c 25 80 fc 02 00 41 83 bd ec 08 00 00 RSP: 0018:ffff88012521f230 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: ffffffff8a1af000 RBX: ffffffff8a1ad000 RCX: 0000000000040000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88012521f318 RBP: ffff88012521f280 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81174df0 R12: ffff88012521f318 R13: 0000000000000000 R14: ffffffff8a1ac000 R15: ffff88012d06c3f8 __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+0x373/0x4e0 kernel/smp.c:302 smp_call_function_many+0x658/0xdb0 kernel/smp.c:434 smp_call_function kernel/smp.c:492 [inline] on_each_cpu+0xd2/0x160 kernel/smp.c:602 flush_tlb_kernel_range+0x161/0x1e0 arch/x86/mm/tlb.c:683 __purge_vmap_area_lazy+0x1f7/0x3b0 mm/vmalloc.c:677 vm_unmap_aliases+0x635/0x6d0 mm/vmalloc.c:1109 change_page_attr_set_clr+0x587/0x1dd0 arch/x86/mm/pageattr.c:1473 change_page_attr_clear arch/x86/mm/pageattr.c:1533 [inline] set_memory_ro+0xcc/0x100 arch/x86/mm/pageattr.c:1762 bpf_jit_binary_lock_ro include/linux/filter.h:690 [inline] bpf_int_jit_compile+0x80b3/0x8590 arch/x86/net/bpf_jit_comp.c:1168 bpf_prog_select_runtime+0x953/0x9f0 kernel/bpf/core.c:1498 bpf_migrate_filter net/core/filter.c:1273 [inline] bpf_prepare_filter+0x1940/0x1d80 net/core/filter.c:1321 bpf_prog_create_from_user+0x684/0x850 net/core/filter.c:1415 seccomp_prepare_filter kernel/seccomp.c:395 [inline] seccomp_prepare_user_filter kernel/seccomp.c:430 [inline] seccomp_set_mode_filter kernel/seccomp.c:862 [inline] do_seccomp+0xab5/0x20b0 kernel/seccomp.c:935 __do_sys_seccomp kernel/seccomp.c:949 [inline] __se_sys_seccomp kernel/seccomp.c:946 [inline] __x64_sys_seccomp+0xdb/0x120 kernel/seccomp.c:946 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457089 Code: fd 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb009d79c78 EFLAGS: 00000246 ORIG_RAX: 000000000000013d RAX: ffffffffffffffda RBX: 00007fb009d7a6d4 RCX: 0000000000457089 RDX: 00000000200001c0 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d3678 R14: 00000000004c8101 R15: 0000000000000000 rcu_sched kthread starved for 100002 jiffies! g29423 c29422 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1 RCU grace-period kthread stack dump: rcu_sched R running task 61848 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 schedule_timeout+0x3f0/0x580 kernel/time/timer.c:1801 rcu_gp_kthread+0x1da1/0x3850 kernel/rcu/tree.c:2179 kthread+0x44d/0x480 kernel/kthread.c:247 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415