INFO: rcu_sched self-detected stall on CPU 0-...!: (119462 ticks this GP) idle=a06/1/4611686018427387906 softirq=128797/128797 fqs=10 (t=125000 jiffies g=64855 c=64854 q=447907) rcu_sched kthread starved for 124945 jiffies! g64855 c64854 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1 RCU grace-period kthread stack dump: rcu_sched R running task 23592 9 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2859 [inline] __schedule+0x801/0x1e30 kernel/sched/core.c:3501 schedule+0xef/0x430 kernel/sched/core.c:3545 schedule_timeout+0x138/0x240 kernel/time/timer.c:1801 rcu_gp_kthread+0x6b5/0x1940 kernel/rcu/tree.c:2231 kthread+0x345/0x410 kernel/kthread.c:240 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 NMI backtrace for cpu 0 CPU: 0 PID: 8 Comm: ksoftirqd/0 Not tainted 4.17.0-rc5+ #59 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:unwind_next_frame.part.7+0x0/0x9c0 arch/x86/kernel/unwind_frame.c:36 RSP: 0018:ffff8801d9aaeca8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8801d9aaecc8 RCX: 000000000000000a RDX: 0000000000000001 RSI: ffffffff86e3beeb RDI: ffff8801d9aaecc8 RBP: ffff8801d9aaecb8 R08: ffff8801d9aaed00 R09: ffff8801d9a9c200 R10: ffffed003b355da3 R11: ffff8801d9aaed1f R12: 0000000000000000 R13: 0000000000000000 R14: ffff8801d9a9c200 R15: ffff88002f8d1ebf __save_stack_trace+0x6e/0xd0 arch/x86/kernel/stacktrace.c:44 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x760 mm/slab.c:3554 kmem_cache_zalloc include/linux/slab.h:691 [inline] sctp_chunkify+0xce/0x400 net/sctp/sm_make_chunk.c:1355 _sctp_make_chunk+0x157/0x280 net/sctp/sm_make_chunk.c:1428 sctp_make_control net/sctp/sm_make_chunk.c:1464 [inline] sctp_make_heartbeat+0x8f/0x430 net/sctp/sm_make_chunk.c:1177 sctp_sf_heartbeat.isra.23+0x26/0x180 net/sctp/sm_statefuns.c:1005 sctp_sf_sendbeat_8_3+0x38e/0x550 net/sctp/sm_statefuns.c:1049 sctp_do_sm+0x1ab/0x7160 net/sctp/sm_sideeffect.c:1188 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 run_ksoftirqd+0x86/0x100 kernel/softirq.c:646 smpboot_thread_fn+0x417/0x870 kernel/smpboot.c:164 kthread+0x345/0x410 kernel/kthread.c:240 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 125s! BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 125s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 in-flight: 24:cache_reap pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=7/256 pending: key_garbage_collector, defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler, vmstat_shepherd, cache_reap workqueue events_power_efficient: flags=0x80 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 pending: device_uncache_fw_images_work, gc_worker workqueue mm_percpu_wq: flags=0x8 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 pending: vmstat_update workqueue writeback: flags=0x4e pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 pending: wb_workfn, wb_workfn workqueue kblockd: flags=0x18 pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 pending: blk_mq_timeout_work workqueue ib_addr: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 pending: process_req workqueue dm_bufio_cache: flags=0x8 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 pending: work_fn device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves