| TITLE: INFO: rcu detected stall in llcp_sock_sendmsg |
| TYPE: HANG |
| |
| [ 1098.520844] INFO: rcu_sched self-detected stall on CPU |
| [ 1098.520919] 1-....: (20918 ticks this GP) idle=55a/1/4611686018427387906 softirq=11347/11347 fqs=20240 |
| [ 1098.520943] (t=125005 jiffies g=5572 c=5571 q=149) |
| [ 1098.520955] NMI backtrace for cpu 1 |
| [ 1098.520964] CPU: 1 PID: 4811 Comm: syz-executor0 Not tainted 4.18.0-rc1+ #115 |
| [ 1098.520969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 1098.521036] Call Trace: |
| [ 1098.521040] <IRQ> |
| [ 1098.521119] dump_stack+0x1c9/0x2b4 |
| [ 1098.521173] nmi_cpu_backtrace.cold.4+0x19/0xce |
| [ 1098.521197] nmi_trigger_cpumask_backtrace+0x151/0x192 |
| [ 1098.521209] arch_trigger_cpumask_backtrace+0x14/0x20 |
| [ 1098.521220] rcu_dump_cpu_stacks+0x175/0x1c2 |
| [ 1098.521245] check_cpu_stall.isra.60.cold.78+0x36c/0x5a6 |
| [ 1098.521438] rcu_check_callbacks+0x23f/0xcd0 |
| [ 1098.521611] update_process_times+0x2d/0x70 |
| [ 1098.521623] tick_sched_handle+0x9f/0x180 |
| [ 1098.521635] tick_sched_timer+0x45/0x130 |
| [ 1098.521645] __hrtimer_run_queues+0x3eb/0x10c0 |
| [ 1098.521777] hrtimer_interrupt+0x2f3/0x750 |
| [ 1098.521808] smp_apic_timer_interrupt+0x165/0x730 |
| [ 1098.521901] apic_timer_interrupt+0xf/0x20 |
| [ 1098.521906] </IRQ> |
| [ 1098.521915] RIP: 0010:console_unlock+0xc84/0x10b0 |
| [ 1098.522104] RSP: 0018:ffff8801aab0f358 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 |
| [ 1098.522115] RAX: ffff8801aa2802c0 RBX: 0000000000000200 RCX: 1ffff10035450163 |
| [ 1098.522121] RDX: 0000000000000000 RSI: ffffffff8162b8fb RDI: 0000000000000293 |
| [ 1098.522127] RBP: ffff8801aab0f4c0 R08: ffff8801aa280af8 R09: 0000000000000006 |
| [ 1098.522132] R10: ffff8801aa2802c0 R11: 0000000000000000 R12: 0000000000000000 |
| [ 1098.522138] R13: ffffffff84ea9880 R14: 0000000000000001 R15: dffffc0000000000 |
| [ 1098.522273] vprintk_emit+0x6c6/0xdf0 |
| [ 1098.522366] vprintk_default+0x28/0x30 |
| [ 1098.522375] vprintk_func+0x7a/0xe7 |
| [ 1098.522385] printk+0xa7/0xcf |
| [ 1098.522435] nfc_llcp_send_ui_frame.cold.9+0x18/0x1f |
| [ 1098.522507] llcp_sock_sendmsg+0x278/0x350 |
| [ 1098.522528] sock_sendmsg+0xd5/0x120 |
| [ 1098.522539] ___sys_sendmsg+0x51d/0x930 |
| [ 1098.522667] __sys_sendmmsg+0x240/0x6f0 |
| [ 1098.522794] __x64_sys_sendmmsg+0x9d/0x100 |
| [ 1098.522806] do_syscall_64+0x1b9/0x820 |
| [ 1098.522882] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 1098.522891] RIP: 0033:0x455a99 |
| [ 1098.523077] RSP: 002b:00007ffec82fb2b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 |
| [ 1098.523087] RAX: ffffffffffffffda RBX: 0000000001992914 RCX: 0000000000455a99 |
| [ 1098.523093] RDX: 04924924924926b2 RSI: 00000000200026c0 RDI: 0000000000000004 |
| [ 1098.523099] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 |
| [ 1098.523104] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 1098.523110] R13: 00000000004c0b44 R14: 00000000004d0980 R15: 0000000000000001 |
