| TITLE: INFO: rcu detected stall in sctp_generate_heartbeat_event |
| TYPE: HANG |
| |
| [ 396.651023] INFO: rcu_sched self-detected stall on CPU |
| [ 396.656449] 0-...!: (120232 ticks this GP) idle=3da/1/4611686018427387906 softirq=85066/85067 fqs=87 |
| [ 396.666018] (t=125000 jiffies g=45941 c=45940 q=632561) |
| [ 396.671551] rcu_sched kthread starved for 96651 jiffies! g45941 c45940 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1 |
| [ 396.682013] RCU grace-period kthread stack dump: |
| [ 396.686747] rcu_sched R running task 22584 9 2 0x80000000 |
| [ 396.693925] Call Trace: |
| [ 396.696504] __schedule+0x801/0x1e30 |
| [ 396.721528] schedule+0xef/0x430 |
| [ 396.760095] schedule_timeout+0x138/0x240 |
| [ 396.773155] rcu_gp_kthread+0x6b5/0x1940 |
| [ 396.902194] kthread+0x345/0x410 |
| [ 396.914410] ret_from_fork+0x3a/0x50 |
| [ 396.918117] NMI backtrace for cpu 0 |
| [ 396.921726] CPU: 0 PID: 8 Comm: ksoftirqd/0 Not tainted 4.17.0-rc4+ #48 |
| [ 396.928465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 396.937797] Call Trace: |
| [ 396.940361] <IRQ> |
| [ 396.942495] dump_stack+0x1b9/0x294 |
| [ 396.955257] nmi_cpu_backtrace.cold.4+0x19/0xce |
| [ 396.965085] nmi_trigger_cpumask_backtrace+0x151/0x192 |
| [ 396.970349] arch_trigger_cpumask_backtrace+0x14/0x20 |
| [ 396.975523] rcu_dump_cpu_stacks+0x175/0x1c2 |
| [ 396.984915] check_cpu_stall.isra.61.cold.80+0x36c/0x59a |
| [ 397.045471] rcu_check_callbacks+0x21b/0xad0 |
| [ 397.099148] update_process_times+0x2d/0x70 |
| [ 397.103455] tick_sched_handle+0x9f/0x180 |
| [ 397.107586] tick_sched_timer+0x45/0x130 |
| [ 397.111633] __hrtimer_run_queues+0x3e3/0x10a0 |
| [ 397.164906] hrtimer_interrupt+0x2f3/0x750 |
| [ 397.169132] smp_apic_timer_interrupt+0x15d/0x710 |
| [ 397.200493] apic_timer_interrupt+0xf/0x20 |
| [ 397.204703] </IRQ> |
| [ 397.206926] RIP: 0010:unwind_next_frame.part.7+0x8b/0x9c0 |
| [ 397.212439] RSP: 0018:ffff8801d9aaebb0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 |
| [ 397.220131] RAX: 1ffff1003b355da3 RBX: ffff8801d9aaecc8 RCX: 0000000000000007 |
| [ 397.227380] RDX: dffffc0000000000 RSI: ffffffff86e8b04f RDI: ffff8801d9aaecc8 |
| [ 397.234633] RBP: ffff8801d9aaeca0 R08: ffff8801d9aaed00 R09: ffff8801d9a9c200 |
| [ 397.241882] R10: ffffed003b355da3 R11: ffff8801d9aaed1f R12: 1ffff1003b355d7b |
| [ 397.249135] R13: 0000000000000000 R14: ffff8801d9a9c200 R15: ffff8801d9aaed18 |
| [ 397.284735] unwind_next_frame+0x3e/0x50 |
| [ 397.288784] __save_stack_trace+0x6e/0xd0 |
| [ 397.297403] save_stack_trace+0x1a/0x20 |
| [ 397.301360] save_stack+0x43/0xd0 |
| [ 397.415393] kasan_kmalloc+0xc4/0xe0 |
| [ 397.419094] kasan_slab_alloc+0x12/0x20 |
| [ 397.423094] kmem_cache_alloc+0x12e/0x760 |
| [ 397.427240] sctp_chunkify+0xce/0x400 |
| [ 397.455406] _sctp_make_chunk+0x157/0x280 |
| [ 397.459538] sctp_make_heartbeat+0x8f/0x430 |
| [ 397.483422] sctp_sf_heartbeat.isra.23+0x26/0x180 |
| [ 397.488250] sctp_sf_sendbeat_8_3+0x38e/0x550 |
| [ 397.492731] sctp_do_sm+0x1ab/0x7160 |
| [ 397.565731] sctp_generate_heartbeat_event+0x218/0x450 |
| [ 397.571003] call_timer_fn+0x230/0x940 |
| [ 397.617386] __run_timers+0x79e/0xc50 |
| [ 397.668620] run_timer_softirq+0x4c/0x70 |
| [ 397.672666] __do_softirq+0x2e0/0xaf5 |
| [ 397.707640] run_ksoftirqd+0x86/0x100 |
| [ 397.711424] smpboot_thread_fn+0x417/0x870 |
| [ 397.729086] kthread+0x345/0x410 |
| [ 397.739836] ret_from_fork+0x3a/0x50 |
