| TITLE: INFO: rcu detected stall in netlink_sendmsg |
| TYPE: HANG |
| |
| [ 355.572806] INFO: rcu_sched self-detected stall on CPU |
| [ 355.578254] 0: (104999 ticks this GP) idle=ab9/140000000000001/0 softirq=76582/76582 fqs=34894 |
| [ 355.587151] (t=105000 jiffies g=36307 c=36306 q=2303) |
| [ 355.592663] Task dump for CPU 0: |
| [ 355.596007] syz-executor7 R running task on cpu 0 0 19712 4019 0x0000000c 250568154159 |
| [ 355.605206] 0000000000000fb3 00000000ccf50a4a ffff8801daa07bd8 ffffffff816f0dc7 |
| [ 355.613296] ffff8801daa1f7c0 0000000000000000 dffffc0000000000 ffffffff83fca380 |
| [ 355.621298] ffffffff83fca3f4 ffff8801daa07be8 ffffffff816f154c ffff8801daa07c08 |
| [ 355.629309] Call Trace: |
| [ 355.631878] <IRQ> [<ffffffff816f0dc7>] _sched_show_task+0x31a/0x325 |
| [ 355.638595] [<ffffffff816f154c>] sched_show_task+0x10/0x12 |
| [ 355.644287] [<ffffffff816f16f1>] dump_cpu_task+0x7e/0x83 |
| [ 355.649807] [<ffffffff816faea8>] rcu_dump_cpu_stacks+0x155/0x169 |
| [ 355.656012] [<ffffffff816fb851>] rcu_check_callbacks.cold.76+0x61e/0xc77 |
| [ 355.668696] [<ffffffff814f6faf>] update_process_times+0x3f/0x70 |
| [ 355.674817] [<ffffffff815204ba>] tick_sched_handle.isra.16+0x5a/0x100 |
| [ 355.681474] [<ffffffff81520b6a>] tick_sched_timer+0x7a/0x130 |
| [ 355.687337] [<ffffffff814fa0e5>] __hrtimer_run_queues+0x3a5/0xc50 |
| [ 355.725548] [<ffffffff814fb30e>] hrtimer_interrupt+0x18e/0x400 |
| [ 355.731583] [<ffffffff8129b744>] local_apic_timer_interrupt+0x74/0x90 |
| [ 355.738224] [<ffffffff81012dff>] smp_apic_timer_interrupt+0xdf/0x130 |
| [ 355.744785] [<ffffffff81011c72>] smp_apic_timer_interrupt_entry_after_kaiser_bti+0x20/0x2e |
| [ 355.753246] <EOI> [<ffffffff81494f40>] ? check_noncircular+0x20/0x20 |
| [ 355.766683] [<ffffffff815e3567>] is_ftrace_trampoline+0x37/0x120 |
| [ 355.772905] [<ffffffff813a1928>] __kernel_text_address+0x88/0xc0 |
| [ 355.779116] [<ffffffff81245324>] print_context_stack+0x54/0xe0 |
| [ 355.785183] [<ffffffff8124441d>] dump_trace+0x16d/0x320 |
| [ 355.790612] [<ffffffff81265a0b>] save_stack_trace+0x2b/0x50 |
| [ 355.796389] [<ffffffff8183fd43>] save_stack+0x43/0xd0 |
| [ 356.049567] [<ffffffff8183ffd4>] kasan_kmalloc+0xc4/0xe0 |
| [ 356.055079] [<ffffffff81840582>] kasan_slab_alloc+0x12/0x20 |
| [ 356.060852] [<ffffffff8183a96d>] kmem_cache_alloc+0x14d/0x710 |
| [ 356.078645] [<ffffffff81df032e>] ida_pre_get+0x12e/0x2b0 |
| [ 356.096113] [<ffffffff81df0589>] ida_simple_get+0xd9/0x1e0 |
| [ 356.117746] [<ffffffff81a32b67>] __kernfs_new_node+0x97/0x2c0 |
| [ 356.123707] [<ffffffff81a36535>] kernfs_new_node+0x85/0xf0 |
| [ 356.129409] [<ffffffff81a36ec2>] kernfs_create_dir_ns+0x42/0x140 |
| [ 356.135620] [<ffffffff81a3dd23>] sysfs_create_dir_ns+0xc3/0x1d0 |
| [ 356.141741] [<ffffffff81df2be4>] kobject_add_internal+0x284/0x990 |
| [ 356.148036] [<ffffffff81df33d7>] kobject_init_and_add+0xe7/0x140 |
| [ 356.160732] [<ffffffff82af29a4>] netdev_queue_update_kobjects+0xf4/0x2b0 |
| [ 356.167638] [<ffffffff82af2eaf>] netdev_register_kobject+0x22f/0x2f0 |
| [ 356.174196] [<ffffffff82a96121>] register_netdevice+0x7d1/0xf60 |
| [ 356.205338] [<ffffffff82e6da68>] ip_tunnel_newlink+0x378/0x770 |
| [ 356.217510] [<ffffffff82e83a52>] ipgre_newlink+0x102/0x160 |
| [ 356.247884] [<ffffffff82acf8f5>] rtnl_newlink+0x1055/0x15c0 |
| [ 356.316833] [<ffffffff82ad0314>] rtnetlink_rcv_msg+0x4b4/0x700 |
| [ 356.353912] [<ffffffff82c13dc3>] netlink_rcv_skb+0x143/0x370 |
| [ 356.365750] [<ffffffff82ac074f>] rtnetlink_rcv+0x2f/0x40 |
| [ 356.371288] [<ffffffff82c128c7>] netlink_unicast+0x517/0x740 |
| [ 356.395498] [<ffffffff82c132d4>] netlink_sendmsg+0x7e4/0xc90 |
| [ 356.420047] [<ffffffff82a088a8>] sock_sendmsg+0xe8/0x150 |
| [ 356.425579] [<ffffffff82a0c3f0>] ___sys_sendmsg+0x760/0x8b0 |
| [ 356.475821] [<ffffffff82a0f0eb>] __sys_sendmsg+0xdb/0x190 |
| [ 356.504375] [<ffffffff82a0f1d2>] SyS_sendmsg+0x32/0x50 |
| [ 356.509728] [<ffffffff8307ddd3>] entry_SYSCALL_64_fastpath+0x12/0x17 |
