Warning: Permanently added '10.128.10.5' (ECDSA) to the list of known hosts.
2020/04/01 07:46:36 fuzzer started
2020/04/01 07:46:37 dialing manager at 10.128.0.105:45605
2020/04/01 07:46:38 syscalls: 2955
2020/04/01 07:46:38 code coverage: enabled
2020/04/01 07:46:38 comparison tracing: enabled
2020/04/01 07:46:38 extra coverage: enabled
2020/04/01 07:46:38 setuid sandbox: enabled
2020/04/01 07:46:38 namespace sandbox: enabled
2020/04/01 07:46:38 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/01 07:46:38 fault injection: enabled
2020/04/01 07:46:38 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/01 07:46:38 net packet injection: enabled
2020/04/01 07:46:38 net device setup: enabled
2020/04/01 07:46:38 concurrency sanitizer: enabled
2020/04/01 07:46:38 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 57.479226][ T7828] KCSAN: could not find function: '_find_next_bit'
[ 58.767705][ T7828] KCSAN: could not find function: 'poll_schedule_timeout'
2020/04/01 07:46:43 adding functions to KCSAN blacklist: 'tick_nohz_idle_stop_tick' 'xas_clear_mark' 'copyout' 'do_nanosleep' 'blk_mq_sched_dispatch_requests' 'snd_seq_check_queue' 'find_get_pages_range_tag' 'ext4_has_free_clusters' 'run_timer_softirq' 'echo_char' 'wbt_done' 'shmem_getpage_gfp' 'atime_needs_update' 'xas_find_marked' '__ext4_new_inode' 'ep_poll' 'alloc_empty_file' 'do_exit' 'copy_process' 'dd_has_work' '__snd_rawmidi_transmit_ack' 'add_timer' '_find_next_bit' 'tick_sched_do_timer' 'ext4_free_inodes_count' '__wb_update_bandwidth' 'snd_seq_prioq_cell_out' 'generic_write_end' 'generic_fillattr' 'mod_timer' 'audit_log_start' 'list_lru_count_one' 'ext4_mark_iloc_dirty' 'poll_schedule_timeout' 'kauditd_thread' 'lruvec_lru_size' 'do_syslog' 'blk_mq_dispatch_rq_list' 'ktime_get_real_seconds'
[ 182.668271][ C0] ==================================================================
[ 182.676440][ C0] BUG: KCSAN: data-race in timer_clear_idle / trigger_dyntick_cpu.isra.0
[ 182.684826][ C0]
[ 182.687164][ C0] write to 0xffff88812c11dbe4 of 1 bytes by task 0 on cpu 1:
[ 182.694617][ C0] timer_clear_idle+0x3d/0x50
[ 182.699400][ C0] __tick_nohz_idle_restart_tick+0x32/0x1a0
[ 182.705277][ C0] tick_nohz_idle_exit+0x19c/0x1d0
[ 182.710420][ C0] do_idle+0xac/0x290
[ 182.714429][ C0] cpu_startup_entry+0x14/0x20
[ 182.719177][ C0] start_secondary+0x164/0x1b0
[ 182.723933][ C0] secondary_startup_64+0xa4/0xb0
[ 182.728932][ C0]
[ 182.731248][ C0] read to 0xffff88812c11dbe4 of 1 bytes by interrupt on cpu 0:
[ 182.738893][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 182.744507][ C0] mod_timer+0x3d7/0x830
[ 182.748868][ C0] sk_reset_timer+0x29/0xc0
[ 182.753380][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 182.758666][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 182.763764][ C0] tcp_rcv_established+0x72b/0xee0
[ 182.768860][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 182.773532][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 182.778025][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 182.783381][ C0] ip_local_deliver_finish+0xf3/0x120
[ 182.788749][ C0] ip_local_deliver+0x135/0x220
[ 182.793637][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 182.798844][ C0] ip_sublist_rcv+0x3f8/0x530
[ 182.803568][ C0] ip_list_rcv+0x2f3/0x321
[ 182.808002][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 182.813976][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 182.820107][ C0] gro_normal_list.part.0+0x37/0xa0
[ 182.825307][ C0] gro_normal_one+0x14c/0x160
[ 182.830051][ C0] napi_gro_receive+0x27d/0x2f0
[ 182.834891][ C0] receive_buf+0x24e/0x2e20
[ 182.839375][ C0] virtnet_poll+0x343/0x790
[ 182.843864][ C0] net_rx_action+0x3ad/0xac0
[ 182.848439][ C0] __do_softirq+0x118/0x34a
[ 182.852924][ C0] irq_exit+0xb5/0xd0
[ 182.856888][ C0] do_IRQ+0x7b/0x120
[ 182.860795][ C0] ret_from_intr+0x0/0x21
[ 182.865101][ C0] native_safe_halt+0xe/0x10
[ 182.869669][ C0] default_idle+0x21/0x170
[ 182.875379][ C0] do_idle+0x1b7/0x290
[ 182.880481][ C0] cpu_startup_entry+0x14/0x20
[ 182.885231][ C0] rest_init+0xe4/0xeb
[ 182.889400][ C0] arch_call_rest_init+0x13/0x2b
[ 182.894416][ C0] start_kernel+0xcc2/0xceb
[ 182.898913][ C0] secondary_startup_64+0xa4/0xb0
[ 182.903914][ C0]
[ 182.906264][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 182.912693][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 182.920562][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 182.930709][ C0] ==================================================================
[ 182.938748][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 182.945330][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 182.953202][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 182.963246][ C0] Call Trace:
[ 182.966518][ C0]
[ 182.969361][ C0] dump_stack+0x11d/0x187
[ 182.973684][ C0] panic+0x210/0x640
[ 182.977597][ C0] ? vprintk_func+0x89/0x13a
[ 182.982188][ C0] kcsan_report.cold+0xc/0xf
[ 182.986795][ C0] kcsan_setup_watchpoint+0x3fb/0x440
[ 182.992162][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 182.997695][ C0] mod_timer+0x3d7/0x830
[ 183.001933][ C0] sk_reset_timer+0x29/0xc0
[ 183.006418][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 183.011598][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 183.016686][ C0] ? constant_test_bit+0xd/0x30
[ 183.021518][ C0] tcp_rcv_established+0x72b/0xee0
[ 183.026615][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 183.031187][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 183.035735][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 183.041090][ C0] ip_local_deliver_finish+0xf3/0x120
[ 183.046474][ C0] ip_local_deliver+0x135/0x220
[ 183.051314][ C0] ? ip_protocol_deliver_rcu+0x410/0x410
[ 183.056932][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 183.062114][ C0] ip_sublist_rcv+0x3f8/0x530
[ 183.069216][ C0] ? ip_sublist_rcv+0x530/0x530
[ 183.074053][ C0] ip_list_rcv+0x2f3/0x321
[ 183.078468][ C0] ? ip_rcv+0x1b0/0x1b0
[ 183.082623][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 183.088618][ C0] ? ktime_get_with_offset+0x1e6/0x230
[ 183.094072][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 183.100212][ C0] gro_normal_list.part.0+0x37/0xa0
[ 183.105489][ C0] ? __write_once_size+0x7c/0x100
[ 183.110496][ C0] gro_normal_one+0x14c/0x160
[ 183.115329][ C0] napi_gro_receive+0x27d/0x2f0
[ 183.120174][ C0] receive_buf+0x24e/0x2e20
[ 183.124665][ C0] ? virtqueue_get_buf_ctx+0x4db/0x5c0
[ 183.130104][ C0] virtnet_poll+0x343/0x790
[ 183.134586][ C0] ? rcu_dynticks_curr_cpu_in_eqs+0x70/0xa0
[ 183.140462][ C0] net_rx_action+0x3ad/0xac0
[ 183.145037][ C0] __do_softirq+0x118/0x34a
[ 183.149530][ C0] irq_exit+0xb5/0xd0
[ 183.153494][ C0] do_IRQ+0x7b/0x120
[ 183.157376][ C0] common_interrupt+0xf/0xf
[ 183.161871][ C0]
[ 183.164790][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 183.170155][ 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
[ 183.189749][ C0] RSP: 0018:ffffffff85a03e50 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffda
[ 183.198158][ C0] RAX: 0000000000000000 RBX: ffffffff85a2b840 RCX: ffffffff82522f51
[ 183.206155][ C0] RDX: 0000000000000000 RSI: ffffffff82522f5a RDI: 0000000000000005
[ 183.214155][ C0] RBP: 0000000000000000 R08: ffffffff85a2b840 R09: 0000ffff8584b160
[ 183.222106][ C0] R10: 0000ffff85a03e38 R11: 0000ffff8584b167 R12: ffffffff85a2b840
[ 183.230072][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85a2b840
[ 183.238065][ C0] ? debug_smp_processor_id+0x31/0x129
[ 183.243527][ C0] ? debug_smp_processor_id+0x3a/0x129
[ 183.249589][ C0] default_idle+0x21/0x170
[ 183.254047][ C0] do_idle+0x1b7/0x290
[ 183.258105][ C0] ? debug_smp_processor_id+0x3a/0x129
[ 183.263548][ C0] cpu_startup_entry+0x14/0x20
[ 183.268295][ C0] rest_init+0xe4/0xeb
[ 183.272387][ C0] arch_call_rest_init+0x13/0x2b
[ 183.277395][ C0] start_kernel+0xcc2/0xceb
[ 183.281891][ C0] secondary_startup_64+0xa4/0xb0
[ 183.288370][ C0] Kernel Offset: disabled
[ 183.292714][ C0] Rebooting in 86400 seconds..