INFO: rcu_sched self-detected stall on CPU 0-....: (125000 ticks this GP) idle=e1e/1/4611686018427387908 softirq=172378/172378 fqs=30638 (t=125000 jiffies g=92817 c=92816 q=725907) NMI backtrace for cpu 0 CPU: 0 PID: 13193 Comm: udevd Not tainted 4.17.0-rc4+ #46 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+0x1b9/0x294 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:156 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1376 print_cpu_stall kernel/rcu/tree.c:1525 [inline] check_cpu_stall.isra.61.cold.80+0x36c/0x59a kernel/rcu/tree.c:1593 __rcu_pending kernel/rcu/tree.c:3356 [inline] rcu_pending kernel/rcu/tree.c:3401 [inline] rcu_check_callbacks+0x21b/0xad0 kernel/rcu/tree.c:2763 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x3e3/0x10a0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x15d/0x710 arch/x86/kernel/apic/apic.c:1050 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:783 [inline] RIP: 0010:kfree+0x124/0x260 mm/slab.c:3814 RSP: 0018:ffff8801dae06590 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: ffff8801d8472d40 RCX: 1ffff10032e01142 RDX: 0000000000000000 RSI: ffff8801970089f0 RDI: 0000000000000286 RBP: ffff8801dae065b0 R08: ffff880197008978 R09: 0000000000000002 R10: ffff880197008140 R11: 0000000000000000 R12: 0000000000000286 R13: ffff8801da800940 R14: ffffffff85d7ec39 R15: ffff8801783d75c0 skb_free_head+0x99/0xc0 net/core/skbuff.c:550 skb_release_data+0x690/0x860 net/core/skbuff.c:570 skb_release_all+0x4a/0x60 net/core/skbuff.c:627 __kfree_skb net/core/skbuff.c:641 [inline] consume_skb+0x18b/0x550 net/core/skbuff.c:701 sctp_chunk_destroy net/sctp/sm_make_chunk.c:1462 [inline] sctp_chunk_put+0x2c0/0x440 net/sctp/sm_make_chunk.c:1489 sctp_chunk_free+0x53/0x60 net/sctp/sm_make_chunk.c:1476 sctp_packet_pack net/sctp/output.c:489 [inline] sctp_packet_transmit+0x142e/0x3ba0 net/sctp/output.c:610 sctp_outq_flush_transports net/sctp/outqueue.c:1164 [inline] sctp_outq_flush+0x5f5/0x3430 net/sctp/outqueue.c:1212 sctp_outq_uncork+0x6a/0x80 net/sctp/outqueue.c:776 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1820 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1220 [inline] sctp_do_sm+0x596/0x7160 net/sctp/sm_sideeffect.c:1191 sctp_generate_heartbeat_event+0x218/0x450 net/sctp/sm_sideeffect.c:406 call_timer_fn+0x230/0x940 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x79e/0xc50 kernel/time/timer.c:1666 run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1692 __do_softirq+0x2e0/0xaf5 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x1d1/0x200 kernel/softirq.c:405 exiting_irq arch/x86/include/asm/apic.h:525 [inline] smp_apic_timer_interrupt+0x17e/0x710 arch/x86/kernel/apic/apic.c:1052 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:146 RSP: 0018:ffff8801ad066b38 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 1ffff10035a0cd6b RCX: ffffffff819b80a7 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000007 RBP: ffff8801ad066e20 R08: ffff880197008140 R09: fffff940010fbbf3 R10: fffff940010fbbf3 R11: ffffea00087ddf9b R12: ffffea00087ddfc0 R13: ffff8801ad066df8 R14: ffffea00087ddfe0 R15: 0000000000000001 zap_pte_range mm/memory.c:1334 [inline] zap_pmd_range mm/memory.c:1441 [inline] zap_pud_range mm/memory.c:1470 [inline] zap_p4d_range mm/memory.c:1491 [inline] unmap_page_range+0xcd4/0x2200 mm/memory.c:1512 unmap_single_vma+0x1a0/0x310 mm/memory.c:1557 unmap_vmas+0x120/0x1f0 mm/memory.c:1587 exit_mmap+0x265/0x570 mm/mmap.c:3079 __mmput kernel/fork.c:961 [inline] mmput+0x251/0x610 kernel/fork.c:982 exec_mmap fs/exec.c:1044 [inline] flush_old_exec+0xb94/0x20e0 fs/exec.c:1276 load_elf_binary+0xa33/0x5610 fs/binfmt_elf.c:869 search_binary_handler+0x17d/0x570 fs/exec.c:1653 exec_binprm fs/exec.c:1695 [inline] do_execveat_common.isra.34+0x16ce/0x2590 fs/exec.c:1817 do_execve fs/exec.c:1862 [inline] __do_sys_execve fs/exec.c:1943 [inline] __se_sys_execve fs/exec.c:1938 [inline] __x64_sys_execve+0x8d/0xb0 fs/exec.c:1938 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5d1873d207 RSP: 002b:00007ffe76eecab8 EFLAGS: 00000206 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f5d1873d207 RDX: 0000000000ce4ff0 RSI: 00007ffe76eecbb0 RDI: 00007ffe76eedbc0 RBP: 0000000000625500 R08: 0000000000001a09 R09: 0000000000001a09 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000ce4ff0 R13: 0000000000000007 R14: 0000000000ce0250 R15: 0000000000000005