Warning: Permanently added '10.128.0.113' (ECDSA) to the list of known hosts.
2020/03/23 19:29:10 fuzzer started
2020/03/23 19:29:11 dialing manager at 10.128.0.105:41839
2020/03/23 19:29:21 syscalls: 2955
2020/03/23 19:29:21 code coverage: enabled
2020/03/23 19:29:21 comparison tracing: enabled
2020/03/23 19:29:21 extra coverage: enabled
2020/03/23 19:29:21 setuid sandbox: enabled
2020/03/23 19:29:21 namespace sandbox: enabled
2020/03/23 19:29:21 Android sandbox: /sys/fs/selinux/policy does not exist
2020/03/23 19:29:21 fault injection: enabled
2020/03/23 19:29:21 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/03/23 19:29:21 net packet injection: enabled
2020/03/23 19:29:21 net device setup: enabled
2020/03/23 19:29:21 concurrency sanitizer: enabled
2020/03/23 19:29:21 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 75.461494][ T7730] KCSAN: could not find function: '_find_next_bit'
[ 77.550862][ T7730] KCSAN: could not find function: 'poll_schedule_timeout'
2020/03/23 19:29:26 adding functions to KCSAN blacklist: 'n_tty_receive_buf_common' 'ext4_writepages' 'get_cpu_idle_time_us' '__perf_event_overflow' 'find_get_pages_range_tag' '__add_to_page_cache_locked' 'tick_sched_do_timer' 'do_nanosleep' 'copy_process' 'blk_mq_get_request' '_find_next_bit' 'add_timer' 'xas_find_marked' 'blk_mq_sched_dispatch_requests' 'shmem_file_read_iter' '__ext4_new_inode' 'pcpu_alloc' 'ext4_nonda_switch' 'tick_nohz_idle_stop_tick' 'ext4_ext_try_to_merge' 'lruvec_lru_size' 'echo_char' 'netlink_getname' 'kauditd_thread' 'run_timer_softirq' 'poll_schedule_timeout' 'mod_timer' 'wbt_done' 'fsnotify' 'futex_wait_queue_me' '__filemap_fdatawrite_range' 'generic_write_end' 'kcm_rfree' 'blk_mq_dispatch_rq_list' 'xas_clear_mark' 'ep_poll' 'audit_log_start'
[ 170.163874][ C0] ==================================================================
[ 170.172053][ C0] BUG: KCSAN: data-race in timer_clear_idle / trigger_dyntick_cpu.isra.0
[ 170.180436][ C0]
[ 170.182793][ C0] write to 0xffff88812c11dbe4 of 1 bytes by task 0 on cpu 1:
[ 170.190157][ C0] timer_clear_idle+0x3d/0x50
[ 170.194818][ C0] __tick_nohz_idle_restart_tick+0x32/0x1a0
[ 170.200698][ C0] tick_nohz_idle_exit+0x19c/0x1d0
[ 170.205805][ C0] do_idle+0xac/0x290
[ 170.209782][ C0] cpu_startup_entry+0x14/0x20
[ 170.214534][ C0] start_secondary+0x164/0x1b0
[ 170.219284][ C0] secondary_startup_64+0xa4/0xb0
[ 170.224284][ C0]
[ 170.226597][ C0] read to 0xffff88812c11dbe4 of 1 bytes by interrupt on cpu 0:
[ 170.234124][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 170.239652][ C0] mod_timer+0x50e/0x830
[ 170.243881][ C0] sk_reset_timer+0x29/0xc0
[ 170.248359][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 170.253544][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 170.258642][ C0] tcp_rcv_established+0x72b/0xee0
[ 170.263735][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 170.268302][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 170.272784][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 170.278146][ C0] ip_local_deliver_finish+0xf3/0x120
[ 170.283494][ C0] ip_local_deliver+0x135/0x220
[ 170.288328][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 170.293523][ C0] ip_sublist_rcv+0x3f8/0x530
[ 170.298181][ C0] ip_list_rcv+0x2f3/0x321
[ 170.302615][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 170.308586][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 170.314733][ C0] gro_normal_list.part.0+0x37/0xa0
[ 170.319913][ C0] gro_normal_one+0x14c/0x160
[ 170.324678][ C0] napi_gro_receive+0x27d/0x2f0
[ 170.329541][ C0] receive_buf+0x24e/0x2e20
[ 170.334039][ C0] virtnet_poll+0x343/0x790
[ 170.338532][ C0] net_rx_action+0x3ad/0xac0
[ 170.343110][ C0] __do_softirq+0x118/0x34a
[ 170.347594][ C0] irq_exit+0xb5/0xd0
[ 170.351558][ C0] do_IRQ+0x7b/0x120
[ 170.355436][ C0] ret_from_intr+0x0/0x21
[ 170.359748][ C0] native_safe_halt+0xe/0x10
[ 170.364335][ C0] default_idle+0x21/0x170
[ 170.368743][ C0] do_idle+0x1b7/0x290
[ 170.372794][ C0] cpu_startup_entry+0x14/0x20
[ 170.377537][ C0] rest_init+0xe4/0xeb
[ 170.381585][ C0] arch_call_rest_init+0x13/0x2b
[ 170.386497][ C0] start_kernel+0xcc2/0xceb
[ 170.390983][ C0] secondary_startup_64+0xa4/0xb0
[ 170.395990][ C0]
[ 170.398295][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 170.404483][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 170.412388][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 170.422423][ C0] ==================================================================
[ 170.430468][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 170.437038][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 170.444910][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 170.454951][ C0] Call Trace:
[ 170.458214][ C0]
[ 170.461056][ C0] dump_stack+0x11d/0x187
[ 170.465375][ C0] panic+0x210/0x640
[ 170.469370][ C0] ? vprintk_func+0x89/0x13a
[ 170.473996][ C0] kcsan_report.cold+0xc/0xf
[ 170.478582][ C0] kcsan_setup_watchpoint+0x3fb/0x440
[ 170.483944][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 170.489470][ C0] mod_timer+0x50e/0x830
[ 170.493703][ C0] sk_reset_timer+0x29/0xc0
[ 170.498184][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 170.503364][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 170.508993][ C0] ? constant_test_bit+0xd/0x30
[ 170.513844][ C0] tcp_rcv_established+0x72b/0xee0
[ 170.518943][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 170.523518][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 170.528010][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 170.533363][ C0] ip_local_deliver_finish+0xf3/0x120
[ 170.538723][ C0] ip_local_deliver+0x135/0x220
[ 170.543572][ C0] ? ip_protocol_deliver_rcu+0x410/0x410
[ 170.549200][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 170.554390][ C0] ip_sublist_rcv+0x3f8/0x530
[ 170.559070][ C0] ? ip_sublist_rcv+0x530/0x530
[ 170.563907][ C0] ip_list_rcv+0x2f3/0x321
[ 170.568305][ C0] ? ip_rcv+0x1b0/0x1b0
[ 170.572443][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 170.578405][ C0] ? ktime_get_with_offset+0x1e6/0x230
[ 170.583854][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 170.590004][ C0] gro_normal_list.part.0+0x37/0xa0
[ 170.595187][ C0] ? __write_once_size+0x7c/0x100
[ 170.600196][ C0] gro_normal_one+0x14c/0x160
[ 170.604858][ C0] napi_gro_receive+0x27d/0x2f0
[ 170.609693][ C0] receive_buf+0x24e/0x2e20
[ 170.614187][ C0] ? virtqueue_get_buf_ctx+0x4db/0x5c0
[ 170.619631][ C0] virtnet_poll+0x343/0x790
[ 170.624124][ C0] net_rx_action+0x3ad/0xac0
[ 170.628707][ C0] __do_softirq+0x118/0x34a
[ 170.633200][ C0] irq_exit+0xb5/0xd0
[ 170.637157][ C0] do_IRQ+0x7b/0x120
[ 170.641034][ C0] common_interrupt+0xf/0xf
[ 170.645517][ C0]
[ 170.648508][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 170.653869][ C0] Code: ff cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d fc f8 43 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d ec f8 43 00 fb f4 cc 41 54 55 53 e8 37 fc 9a fc e8 12 ae b3 fd 0f 1f 44 00 00 48
[ 170.673811][ C0] RSP: 0018:ffffffff85a03e50 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffda
[ 170.682207][ C0] RAX: 0000000000000000 RBX: ffffffff85a2b840 RCX: ffffffff82522f51
[ 170.690161][ C0] RDX: 0000000000000000 RSI: ffffffff82522f5a RDI: 0000000000000005
[ 170.698130][ C0] RBP: 0000000000000000 R08: ffffffff85a2b840 R09: 0000ffff8584b160
[ 170.706171][ C0] R10: 0000ffff85a03e38 R11: 0000ffff8584b167 R12: ffffffff85a2b840
[ 170.714122][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85a2b840
[ 170.722096][ C0] ? debug_smp_processor_id+0x31/0x129
[ 170.727572][ C0] ? debug_smp_processor_id+0x3a/0x129
[ 170.733044][ C0] default_idle+0x21/0x170
[ 170.737442][ C0] do_idle+0x1b7/0x290
[ 170.741511][ C0] ? debug_smp_processor_id+0x3f/0x129
[ 170.746950][ C0] cpu_startup_entry+0x14/0x20
[ 170.751692][ C0] rest_init+0xe4/0xeb
[ 170.755748][ C0] arch_call_rest_init+0x13/0x2b
[ 170.760669][ C0] start_kernel+0xcc2/0xceb
[ 170.765162][ C0] secondary_startup_64+0xa4/0xb0
[ 170.771414][ C0] Kernel Offset: disabled
[ 170.775740][ C0] Rebooting in 86400 seconds..