Warning: Permanently added '10.128.0.62' (ECDSA) to the list of known hosts.
2020/05/24 08:51:54 fuzzer started
2020/05/24 08:51:54 dialing manager at 10.128.0.105:46225
2020/05/24 08:51:54 syscalls: 3055
2020/05/24 08:51:54 code coverage: enabled
2020/05/24 08:51:54 comparison tracing: enabled
2020/05/24 08:51:54 extra coverage: enabled
2020/05/24 08:51:54 setuid sandbox: enabled
2020/05/24 08:51:54 namespace sandbox: enabled
2020/05/24 08:51:54 Android sandbox: /sys/fs/selinux/policy does not exist
2020/05/24 08:51:54 fault injection: enabled
2020/05/24 08:51:54 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/05/24 08:51:54 net packet injection: enabled
2020/05/24 08:51:54 net device setup: enabled
2020/05/24 08:51:54 concurrency sanitizer: enabled
2020/05/24 08:51:54 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/05/24 08:51:54 USB emulation: enabled
syzkaller login: [ 52.632289][ T8919] KCSAN: could not find function: 'poll_schedule_timeout'
[ 53.361895][ T8919] KCSAN: could not find function: '_find_next_bit'
2020/05/24 08:52:00 adding functions to KCSAN blacklist: 'generic_file_read_iter' 'iptunnel_xmit' 'poll_schedule_timeout' 'copy_process' 'ext4_free_inodes_count' '_find_next_bit' 'echo_char' 'ext4_da_write_end' 'ktime_get_real_seconds' 'shmem_file_read_iter' 'atime_needs_update' 'generic_write_end' 'page_counter_charge' 'tick_sched_do_timer' 'generic_fillattr' 'ext4_mark_iloc_dirty' 'pcpu_alloc' 'fasync_remove_entry' 'blk_mq_dispatch_rq_list' 'find_get_pages_range_tag' 'do_nanosleep' 'run_timer_softirq' 'do_wait' 'dd_has_work' '__filemap_fdatawrite_range' 'tick_nohz_idle_stop_tick' 'blk_mq_get_request' '__snd_rawmidi_transmit_ack' '__x64_sys_ptrace' 'io_sq_thread' 'mod_timer' 'do_exit' '__mark_inode_dirty' 'blk_mq_sched_dispatch_requests' 'xas_clear_mark' 'wg_packet_send_staged_packets' 'wbt_done' 'ext4_mb_good_group' 'pipe_double_lock' 'ep_poll' 'fsnotify' 'kauditd_thread' 'n_tty_receive_buf_common' '__ext4_new_inode' 'do_signal_stop' 'audit_log_start'
[ 239.903232][ C1] ==================================================================
[ 239.911590][ C1] BUG: KCSAN: data-race in timer_clear_idle / trigger_dyntick_cpu.isra.0
[ 239.920058][ C1]
[ 239.922402][ C1] write to 0xffff88812c01dca4 of 1 bytes by task 0 on cpu 0:
[ 239.929755][ C1] timer_clear_idle+0x3d/0x50
[ 239.934432][ C1] __tick_nohz_idle_restart_tick+0x32/0x1a0
[ 239.940340][ C1] tick_nohz_idle_exit+0x19c/0x1d0
[ 239.945583][ C1] do_idle+0xac/0x290
[ 239.949907][ C1] cpu_startup_entry+0x14/0x20
[ 239.954677][ C1] rest_init+0xe4/0xeb
[ 239.958745][ C1] arch_call_rest_init+0x13/0x2b
[ 239.963680][ C1] start_kernel+0x7fe/0x823
[ 239.968173][ C1] secondary_startup_64+0xa4/0xb0
[ 239.973170][ C1]
[ 239.975561][ C1] read to 0xffff88812c01dca4 of 1 bytes by interrupt on cpu 1:
[ 239.983257][ C1] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 239.988953][ C1] mod_timer+0x3d7/0x830
[ 239.993199][ C1] sk_reset_timer+0x29/0xc0
[ 239.997706][ C1] tcp_send_delayed_ack+0x1fd/0x280
[ 240.003840][ C1] __tcp_ack_snd_check+0x3bb/0x550
[ 240.009154][ C1] tcp_rcv_established+0x72b/0xee0
[ 240.014243][ C1] tcp_v4_do_rcv+0x396/0x4f0
[ 240.018837][ C1] tcp_v4_rcv+0x1c55/0x1e10
[ 240.023673][ C1] ip_protocol_deliver_rcu+0x4b/0x410
[ 240.029546][ C1] ip_local_deliver_finish+0xf3/0x120
[ 240.035011][ C1] ip_local_deliver+0x135/0x220
[ 240.039865][ C1] ip_sublist_rcv_finish+0xf0/0x140
[ 240.045059][ C1] ip_sublist_rcv+0x3f8/0x530
[ 240.049753][ C1] ip_list_rcv+0x2f3/0x321
[ 240.054156][ C1] __netif_receive_skb_list_core+0x368/0x5c0
[ 240.061188][ C1] netif_receive_skb_list_internal+0x5c7/0x810
[ 240.067321][ C1] gro_normal_list.part.0+0x37/0xa0
[ 240.072520][ C1] gro_normal_one+0x14c/0x160
[ 240.077257][ C1] napi_gro_receive+0x27d/0x2f0
[ 240.082220][ C1] receive_buf+0x24c/0x3420
[ 240.086834][ C1] virtnet_poll+0x343/0x790
[ 240.091320][ C1] net_rx_action+0x3ad/0xac0
[ 240.095907][ C1] __do_softirq+0x118/0x34a
[ 240.100390][ C1] irq_exit+0xb5/0xd0
[ 240.104372][ C1] do_IRQ+0x7b/0x120
[ 240.108277][ C1] ret_from_intr+0x0/0x21
[ 240.112787][ C1] native_safe_halt+0xe/0x10
[ 240.117359][ C1] default_idle+0x21/0x170
[ 240.121988][ C1] do_idle+0x1b7/0x290
[ 240.126063][ C1] cpu_startup_entry+0x14/0x20
[ 240.130895][ C1] start_secondary+0x169/0x1b0
[ 240.135655][ C1] secondary_startup_64+0xa4/0xb0
[ 240.140658][ C1]
[ 240.142993][ C1] Reported by Kernel Concurrency Sanitizer on:
[ 240.149165][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[ 240.157176][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 240.167261][ C1] ==================================================================
[ 240.175322][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 240.182083][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[ 240.189969][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 240.200547][ C1] Call Trace:
[ 240.204365][ C1]
[ 240.207250][ C1] dump_stack+0x11d/0x187
[ 240.211586][ C1] panic+0x210/0x640
[ 240.215554][ C1] ? vprintk_func+0x89/0x13a
[ 240.220242][ C1] kcsan_report.cold+0xc/0x1a
[ 240.224917][ C1] kcsan_setup_watchpoint+0x3fb/0x440
[ 240.230296][ C1] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 240.235823][ C1] mod_timer+0x3d7/0x830
[ 240.240082][ C1] sk_reset_timer+0x29/0xc0
[ 240.244590][ C1] tcp_send_delayed_ack+0x1fd/0x280
[ 240.249795][ C1] __tcp_ack_snd_check+0x3bb/0x550
[ 240.254888][ C1] ? constant_test_bit+0xd/0x30
[ 240.259735][ C1] tcp_rcv_established+0x72b/0xee0
[ 240.264859][ C1] tcp_v4_do_rcv+0x396/0x4f0
[ 240.269439][ C1] tcp_v4_rcv+0x1c55/0x1e10
[ 240.273958][ C1] ip_protocol_deliver_rcu+0x4b/0x410
[ 240.279318][ C1] ip_local_deliver_finish+0xf3/0x120
[ 240.284774][ C1] ip_local_deliver+0x135/0x220
[ 240.289603][ C1] ? ip_protocol_deliver_rcu+0x410/0x410
[ 240.295232][ C1] ip_sublist_rcv_finish+0xf0/0x140
[ 240.300498][ C1] ip_sublist_rcv+0x3f8/0x530
[ 240.306478][ C1] ? ip_sublist_rcv+0x530/0x530
[ 240.311316][ C1] ip_list_rcv+0x2f3/0x321
[ 240.315727][ C1] ? ip_rcv+0x1b0/0x1b0
[ 240.319864][ C1] __netif_receive_skb_list_core+0x368/0x5c0
[ 240.325859][ C1] ? ktime_get_with_offset+0x1e6/0x230
[ 240.331298][ C1] netif_receive_skb_list_internal+0x5c7/0x810
[ 240.337840][ C1] gro_normal_list.part.0+0x37/0xa0
[ 240.343164][ C1] ? __write_once_size+0x7c/0x100
[ 240.348182][ C1] gro_normal_one+0x14c/0x160
[ 240.353347][ C1] napi_gro_receive+0x27d/0x2f0
[ 240.358515][ C1] receive_buf+0x24c/0x3420
[ 240.363475][ C1] ? virtqueue_get_buf_ctx+0x4db/0x5c0
[ 240.369137][ C1] virtnet_poll+0x343/0x790
[ 240.373646][ C1] net_rx_action+0x3ad/0xac0
[ 240.378238][ C1] __do_softirq+0x118/0x34a
[ 240.382825][ C1] irq_exit+0xb5/0xd0
[ 240.386797][ C1] do_IRQ+0x7b/0x120
[ 240.390678][ C1] common_interrupt+0xf/0xf
[ 240.395169][ C1]
[ 240.398101][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 240.403458][ C1] Code: ff cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 0c d6 58 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d fc d5 58 00 fb f4 cc 41 54 55 53 e8 97 b2 71 fb e8 a2 21 bc fc 0f 1f 44 00 00 48
[ 240.423136][ C1] RSP: 0018:ffffc90000cd3eb0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffde
[ 240.431539][ C1] RAX: 0000000000000001 RBX: ffff88812b797040 RCX: ffffffff8285fdf1
[ 240.439497][ C1] RDX: 0000000000000000 RSI: ffffffff8285fdfa RDI: 0000000000000005
[ 240.447456][ C1] RBP: 0000000000000001 R08: ffff88812b797040 R09: 0000ffff87047928
[ 240.455416][ C1] R10: 0000c90000cd3e98 R11: 0000ffff8704792f R12: ffff88812b797040
[ 240.463365][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88812b797040
[ 240.471342][ C1] ? debug_smp_processor_id+0x31/0x129
[ 240.476787][ C1] ? debug_smp_processor_id+0x3a/0x129
[ 240.482238][ C1] default_idle+0x21/0x170
[ 240.486653][ C1] do_idle+0x1b7/0x290
[ 240.490734][ C1] ? do_idle+0xe0/0x290
[ 240.494870][ C1] cpu_startup_entry+0x14/0x20
[ 240.499784][ C1] start_secondary+0x169/0x1b0
[ 240.504545][ C1] secondary_startup_64+0xa4/0xb0
[ 240.510189][ C1] Kernel Offset: disabled
[ 240.514633][ C1] Rebooting in 86400 seconds..