Warning: Permanently added '10.128.1.59' (ECDSA) to the list of known hosts.
2020/02/26 05:05:41 fuzzer started
2020/02/26 05:05:43 dialing manager at 10.128.0.105:41211
2020/02/26 05:05:43 syscalls: 2955
2020/02/26 05:05:43 code coverage: enabled
2020/02/26 05:05:43 comparison tracing: enabled
2020/02/26 05:05:43 extra coverage: enabled
2020/02/26 05:05:43 setuid sandbox: enabled
2020/02/26 05:05:43 namespace sandbox: enabled
2020/02/26 05:05:43 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/26 05:05:43 fault injection: enabled
2020/02/26 05:05:43 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/26 05:05:43 net packet injection: enabled
2020/02/26 05:05:43 net device setup: enabled
2020/02/26 05:05:43 concurrency sanitizer: enabled
2020/02/26 05:05:43 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 68.512323][ T7918] KCSAN: could not find function: '_find_next_bit'
2020/02/26 05:05:48 adding functions to KCSAN blacklist: 'kauditd_thread' 'audit_log_start' 'pcpu_alloc' 'ext4_has_free_clusters' 'generic_write_end' 'copy_process' 'wbt_issue' 'blk_mq_get_request' 'dd_has_work' 'can_send' 'do_nanosleep' 'futex_wait_queue_me' 'run_timer_softirq' 'alloc_empty_file' 'find_get_pages_range_tag' 'blk_mq_dispatch_rq_list' 'tick_nohz_idle_stop_tick' 'generic_fillattr' '__delete_from_page_cache' 'n_tty_receive_buf_common' 'padata_find_next' '__ext4_new_inode' 'tick_sched_do_timer' 'wbt_done' 'add_timer' 'iput' 'ep_poll' 'file_update_time' '__filemap_fdatawrite_range' '__writeback_single_inode' 'xas_clear_mark' 'ext4_nonda_switch' 'do_syslog' 'mod_timer' 'shmem_getpage_gfp' 'blk_mq_sched_dispatch_requests' 'generic_file_read_iter' 'ext4_free_inodes_count' '_find_next_bit' 'ext4_mark_iloc_dirty' 'page_counter_try_charge' 'ktime_get_real_seconds'
[ 76.909578][ C1] ==================================================================
[ 76.917829][ C1] BUG: KCSAN: data-race in timer_clear_idle / trigger_dyntick_cpu.isra.0
[ 76.926229][ C1]
[ 76.928547][ C1] write to 0xffff88812c01dbe4 of 1 bytes by task 0 on cpu 0:
[ 76.935906][ C1] timer_clear_idle+0x42/0x50
[ 76.940584][ C1] __tick_nohz_idle_restart_tick+0x36/0x1b0
[ 76.946472][ C1] tick_nohz_idle_exit+0x1af/0x1e0
[ 76.951567][ C1] do_idle+0xb1/0x290
[ 76.955543][ C1] cpu_startup_entry+0x1b/0x20
[ 76.960300][ C1] rest_init+0xec/0xf6
[ 76.964353][ C1] arch_call_rest_init+0x17/0x37
[ 76.969280][ C1] start_kernel+0xcd4/0xcfc
[ 76.973764][ C1] x86_64_start_reservations+0x29/0x2b
[ 76.979230][ C1] x86_64_start_kernel+0x72/0x76
[ 76.984158][ C1] secondary_startup_64+0xa4/0xb0
[ 76.989161][ C1]
[ 76.991473][ C1] read to 0xffff88812c01dbe4 of 1 bytes by interrupt on cpu 1:
[ 76.999002][ C1] trigger_dyntick_cpu.isra.0+0x75/0x100
[ 77.004642][ C1] mod_timer+0x3b1/0x780
[ 77.008888][ C1] sk_reset_timer+0x2d/0xd0
[ 77.013372][ C1] tcp_send_delayed_ack+0x21d/0x2b0
[ 77.018552][ C1] __tcp_ack_snd_check+0x3d8/0x580
[ 77.023644][ C1] tcp_rcv_established+0x750/0xf50
[ 77.028734][ C1] tcp_v4_do_rcv+0x3b5/0x520
[ 77.033368][ C1] tcp_v4_rcv+0x1c30/0x1e20
[ 77.037864][ C1] ip_protocol_deliver_rcu+0x4d/0x420
[ 77.043220][ C1] ip_local_deliver_finish+0x110/0x140
[ 77.048662][ C1] ip_local_deliver+0x133/0x210
[ 77.053496][ C1] ip_sublist_rcv_finish+0xf8/0x140
[ 77.058733][ C1] ip_sublist_rcv+0x418/0x550
[ 77.063393][ C1] ip_list_rcv+0x2f5/0x322
[ 77.067794][ C1] __netif_receive_skb_list_core+0x350/0x5c0
[ 77.073769][ C1] netif_receive_skb_list_internal+0x5d8/0x830
[ 77.079905][ C1] gro_normal_list.part.0+0x3a/0xb0
[ 77.085089][ C1] gro_normal_one+0x162/0x170
[ 77.089750][ C1] napi_gro_receive+0x288/0x300
[ 77.094587][ C1] receive_buf+0x284/0x30d0
[ 77.099079][ C1] virtnet_poll+0x436/0x7d0
[ 77.103563][ C1] net_rx_action+0x3ae/0xa90
[ 77.108132][ C1] __do_softirq+0x115/0x33f
[ 77.112621][ C1] irq_exit+0xbb/0xe0
[ 77.116586][ C1] do_IRQ+0x81/0x130
[ 77.120467][ C1] ret_from_intr+0x0/0x21
[ 77.124778][ C1] native_safe_halt+0xe/0x10
[ 77.129459][ C1] arch_cpu_idle+0xa/0x10
[ 77.133779][ C1] default_idle_call+0x1e/0x40
[ 77.138539][ C1] do_idle+0x1c2/0x290
[ 77.142589][ C1] cpu_startup_entry+0x1b/0x20
[ 77.147382][ C1] start_secondary+0x168/0x1b0
[ 77.152164][ C1] secondary_startup_64+0xa4/0xb0
[ 77.157245][ C1]
[ 77.159564][ C1] Reported by Kernel Concurrency Sanitizer on:
[ 77.165702][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc1-syzkaller #0
[ 77.173597][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 77.183631][ C1] ==================================================================
[ 77.191669][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 77.198237][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc1-syzkaller #0
[ 77.206103][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 77.216141][ C1] Call Trace:
[ 77.219403][ C1]
[ 77.222265][ C1] dump_stack+0x11d/0x181
[ 77.226587][ C1] panic+0x210/0x640
[ 77.230472][ C1] ? vprintk_func+0x8d/0x140
[ 77.235063][ C1] kcsan_report.cold+0xc/0x1a
[ 77.239739][ C1] kcsan_setup_watchpoint+0x307/0x400
[ 77.245103][ C1] __tsan_read1+0xc2/0x100
[ 77.249512][ C1] trigger_dyntick_cpu.isra.0+0x75/0x100
[ 77.255136][ C1] mod_timer+0x3b1/0x780
[ 77.259371][ C1] sk_reset_timer+0x2d/0xd0
[ 77.263858][ C1] tcp_send_delayed_ack+0x21d/0x2b0
[ 77.269040][ C1] __tcp_ack_snd_check+0x3d8/0x580
[ 77.274145][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[ 77.280373][ C1] tcp_rcv_established+0x750/0xf50
[ 77.285477][ C1] ? ipv4_dst_check+0xc6/0xf0
[ 77.290151][ C1] tcp_v4_do_rcv+0x3b5/0x520
[ 77.294731][ C1] tcp_v4_rcv+0x1c30/0x1e20
[ 77.299236][ C1] ? __read_once_size+0x21/0xe0
[ 77.304094][ C1] ip_protocol_deliver_rcu+0x4d/0x420
[ 77.309472][ C1] ip_local_deliver_finish+0x110/0x140
[ 77.314921][ C1] ip_local_deliver+0x133/0x210
[ 77.319757][ C1] ? ip_protocol_deliver_rcu+0x420/0x420
[ 77.325379][ C1] ip_sublist_rcv_finish+0xf8/0x140
[ 77.330564][ C1] ip_sublist_rcv+0x418/0x550
[ 77.335249][ C1] ? ip_sublist_rcv+0x550/0x550
[ 77.340134][ C1] ip_list_rcv+0x2f5/0x322
[ 77.344552][ C1] ? ip_rcv+0x1a0/0x1a0
[ 77.348712][ C1] __netif_receive_skb_list_core+0x350/0x5c0
[ 77.354691][ C1] ? __read_once_size+0x5a/0xe0
[ 77.359538][ C1] netif_receive_skb_list_internal+0x5d8/0x830
[ 77.365695][ C1] gro_normal_list.part.0+0x3a/0xb0
[ 77.370881][ C1] ? __write_once_size+0x91/0x110
[ 77.375892][ C1] gro_normal_one+0x162/0x170
[ 77.380562][ C1] napi_gro_receive+0x288/0x300
[ 77.385424][ C1] receive_buf+0x284/0x30d0
[ 77.390047][ C1] ? __tsan_read4+0x8a/0x100
[ 77.394640][ C1] ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[ 77.400086][ C1] ? virtqueue_get_buf+0x31/0x40
[ 77.405022][ C1] virtnet_poll+0x436/0x7d0
[ 77.409549][ C1] ? rcu_dynticks_curr_cpu_in_eqs+0x70/0xa0
[ 77.415454][ C1] net_rx_action+0x3ae/0xa90
[ 77.420054][ C1] __do_softirq+0x115/0x33f
[ 77.424548][ C1] irq_exit+0xbb/0xe0
[ 77.428546][ C1] do_IRQ+0x81/0x130
[ 77.432455][ C1] common_interrupt+0xf/0xf
[ 77.436936][ C1]
[ 77.439861][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 77.445224][ C1] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d dc dc 52 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d cc dc 52 00 fb f4 cc 55 48 89 e5 41 55 41 54 53 e8 a2 ce 8a fc e8 7d 33 a8 fd 0f
[ 77.464838][ C1] RSP: 0018:ffffc90000cd3e70 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffde
[ 77.473235][ C1] RAX: 0000000000000001 RBX: ffff88812b786040 RCX: ffffffff8257d0e5
[ 77.481186][ C1] RDX: 0000000000000000 RSI: ffffffff8257d0ee RDI: 0000000000000005
[ 77.489156][ C1] RBP: ffffc90000cd3e90 R08: ffff88812b786040 R09: 0000ffff85a4b168
[ 77.497118][ C1] R10: 0000c90000cd3e80 R11: 0000ffff85a4b16f R12: 0000000000000001
[ 77.505088][ C1] R13: ffff88812b786040 R14: 0000000000000000 R15: 0000000000000000
[ 77.513109][ C1] ? debug_smp_processor_id+0x35/0x137
[ 77.518555][ C1] ? debug_smp_processor_id+0x3e/0x137
[ 77.524039][ C1] ? default_idle+0x26/0x180
[ 77.528615][ C1] arch_cpu_idle+0xa/0x10
[ 77.532965][ C1] default_idle_call+0x1e/0x40
[ 77.537721][ C1] do_idle+0x1c2/0x290
[ 77.541817][ C1] ? debug_smp_processor_id+0x3e/0x137
[ 77.547261][ C1] cpu_startup_entry+0x1b/0x20
[ 77.552008][ C1] start_secondary+0x168/0x1b0
[ 77.556761][ C1] secondary_startup_64+0xa4/0xb0
[ 77.562909][ C1] Kernel Offset: disabled
[ 77.567232][ C1] Rebooting in 86400 seconds..