Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts.
2020/03/28 04:39:26 fuzzer started
2020/03/28 04:39:28 dialing manager at 10.128.0.105:44801
2020/03/28 04:39:28 syscalls: 2955
2020/03/28 04:39:28 code coverage: enabled
2020/03/28 04:39:28 comparison tracing: enabled
2020/03/28 04:39:28 extra coverage: enabled
2020/03/28 04:39:28 setuid sandbox: enabled
2020/03/28 04:39:28 namespace sandbox: enabled
2020/03/28 04:39:28 Android sandbox: /sys/fs/selinux/policy does not exist
2020/03/28 04:39:28 fault injection: enabled
2020/03/28 04:39:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/03/28 04:39:28 net packet injection: enabled
2020/03/28 04:39:28 net device setup: enabled
2020/03/28 04:39:28 concurrency sanitizer: enabled
2020/03/28 04:39:28 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 65.994263][ T7889] KCSAN: could not find function: 'poll_schedule_timeout'
[ 67.851101][ T7889] KCSAN: could not find function: '_find_next_bit'
2020/03/28 04:39:34 adding functions to KCSAN blacklist: 'tick_sched_do_timer' 'ext4_nonda_switch' 'ep_poll' 'blk_mq_dispatch_rq_list' 'tick_nohz_idle_stop_tick' 'watchdog' 'find_get_pages_range_tag' 'pipe_double_lock' 'kauditd_thread' 'ext4_mb_good_group' 'generic_write_end' 'audit_log_start' '__set_oom_adj' 'echo_char' 'dd_has_work' 'shmem_getpage_gfp' 'shmem_file_read_iter' 'ktime_get_seconds' 'wbt_issue' 'copy_process' 'lruvec_lru_size' 'poll_schedule_timeout' 'ext4_mark_iloc_dirty' 'wbt_done' 'xas_find_marked' 'unix_release_sock' 'generic_fillattr' 'n_tty_receive_buf_common' 'do_readlinkat' '__filemap_fdatawrite_range' '__ext4_new_inode' '_find_next_bit' 'kcm_rfree' 'do_nanosleep' 'blk_mq_sched_dispatch_requests' 'ext4_setattr' 'run_timer_softirq' 'ext4_has_free_clusters' 'list_lru_count_one' '__snd_rawmidi_transmit_ack' 'pcpu_alloc' 'do_signal_stop' 'alloc_empty_file' 'atime_needs_update' 'blk_mq_get_request' '__add_to_page_cache_locked' 'xas_clear_mark' 'generic_file_read_iter' 'ext4_free_inodes_count' 'ext4_writepages' 'add_timer' 'ktime_get_real_seconds' '__fat_write_inode' 'do_syslog' 'mod_timer' '__bpf_lru_node_move_in'
[ 126.626839][ C0] ==================================================================
[ 126.635138][ C0] BUG: KCSAN: data-race in timer_clear_idle / trigger_dyntick_cpu.isra.0
[ 126.643644][ C0]
[ 126.645987][ C0] write to 0xffff88812c11dbe4 of 1 bytes by task 0 on cpu 1:
[ 126.653711][ C0] timer_clear_idle+0x3d/0x50
[ 126.658414][ C0] __tick_nohz_idle_restart_tick+0x32/0x1a0
[ 126.664309][ C0] tick_nohz_idle_exit+0x19c/0x1d0
[ 126.670197][ C0] do_idle+0xac/0x290
[ 126.674179][ C0] cpu_startup_entry+0x14/0x20
[ 126.678983][ C0] start_secondary+0x164/0x1b0
[ 126.683747][ C0] secondary_startup_64+0xa4/0xb0
[ 126.688757][ C0]
[ 126.691076][ C0] read to 0xffff88812c11dbe4 of 1 bytes by interrupt on cpu 0:
[ 126.698618][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 126.704166][ C0] mod_timer+0x50e/0x830
[ 126.708540][ C0] sk_reset_timer+0x29/0xc0
[ 126.713053][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 126.718259][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 126.723385][ C0] tcp_rcv_established+0x72b/0xee0
[ 126.728503][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 126.733094][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 126.737626][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 126.742994][ C0] ip_local_deliver_finish+0xf3/0x120
[ 126.748389][ C0] ip_local_deliver+0x135/0x220
[ 126.753261][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 126.758462][ C0] ip_sublist_rcv+0x3f8/0x530
[ 126.763145][ C0] ip_list_rcv+0x2f3/0x321
[ 126.767616][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 126.773604][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 126.779760][ C0] gro_normal_list.part.0+0x37/0xa0
[ 126.784943][ C0] gro_normal_one+0x14c/0x160
[ 126.789636][ C0] napi_gro_receive+0x27d/0x2f0
[ 126.794476][ C0] receive_buf+0x24e/0x2e20
[ 126.798968][ C0] virtnet_poll+0x343/0x790
[ 126.803556][ C0] net_rx_action+0x3ad/0xac0
[ 126.808145][ C0] __do_softirq+0x118/0x34a
[ 126.812639][ C0] irq_exit+0xb5/0xd0
[ 126.816631][ C0] do_IRQ+0x7b/0x120
[ 126.820513][ C0] ret_from_intr+0x0/0x21
[ 126.824847][ C0] native_safe_halt+0xe/0x10
[ 126.829419][ C0] default_idle+0x21/0x170
[ 126.833830][ C0] do_idle+0x1b7/0x290
[ 126.837894][ C0] cpu_startup_entry+0x14/0x20
[ 126.842645][ C0] rest_init+0xe4/0xeb
[ 126.846716][ C0] arch_call_rest_init+0x13/0x2b
[ 126.851667][ C0] start_kernel+0xcc2/0xceb
[ 126.856165][ C0] secondary_startup_64+0xa4/0xb0
[ 126.861172][ C0]
[ 126.863491][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 126.869652][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 126.877533][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 126.887576][ C0] ==================================================================
[ 126.895770][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 126.902458][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 126.910352][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 126.920391][ C0] Call Trace:
[ 126.923662][ C0]
[ 126.926518][ C0] dump_stack+0x11d/0x187
[ 126.930839][ C0] panic+0x210/0x640
[ 126.934726][ C0] ? vprintk_func+0x89/0x13a
[ 126.939396][ C0] kcsan_report.cold+0xc/0xf
[ 126.943995][ C0] kcsan_setup_watchpoint+0x3fb/0x440
[ 126.949399][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 126.954942][ C0] mod_timer+0x50e/0x830
[ 126.959194][ C0] ? common_interrupt+0xa/0xf
[ 126.963878][ C0] sk_reset_timer+0x29/0xc0
[ 126.968391][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 126.973600][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 126.978743][ C0] ? constant_test_bit+0xd/0x30
[ 126.983605][ C0] tcp_rcv_established+0x72b/0xee0
[ 126.988857][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 126.993459][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 126.997978][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 127.003382][ C0] ip_local_deliver_finish+0xf3/0x120
[ 127.008772][ C0] ip_local_deliver+0x135/0x220
[ 127.013628][ C0] ? ip_protocol_deliver_rcu+0x410/0x410
[ 127.019265][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 127.024460][ C0] ip_sublist_rcv+0x3f8/0x530
[ 127.029168][ C0] ? ip_sublist_rcv+0x530/0x530
[ 127.034025][ C0] ip_list_rcv+0x2f3/0x321
[ 127.038463][ C0] ? ip_rcv+0x1b0/0x1b0
[ 127.042627][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 127.048647][ C0] ? ktime_get_with_offset+0x1e6/0x230
[ 127.054122][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 127.060321][ C0] gro_normal_list.part.0+0x37/0xa0
[ 127.065522][ C0] ? __write_once_size+0x7c/0x100
[ 127.070809][ C0] gro_normal_one+0x14c/0x160
[ 127.075481][ C0] napi_gro_receive+0x27d/0x2f0
[ 127.080348][ C0] receive_buf+0x24e/0x2e20
[ 127.084855][ C0] ? virtqueue_get_buf_ctx+0x4db/0x5c0
[ 127.090316][ C0] virtnet_poll+0x343/0x790
[ 127.094836][ C0] net_rx_action+0x3ad/0xac0
[ 127.099438][ C0] __do_softirq+0x118/0x34a
[ 127.103948][ C0] irq_exit+0xb5/0xd0
[ 127.107935][ C0] do_IRQ+0x7b/0x120
[ 127.111836][ C0] common_interrupt+0xf/0xf
[ 127.116336][ C0]
[ 127.119265][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 127.124634][ 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
[ 127.144244][ C0] RSP: 0018:ffffffff85a03e50 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffda
[ 127.152671][ C0] RAX: 0000000000000000 RBX: ffffffff85a2b840 RCX: ffffffff82522f51
[ 127.160631][ C0] RDX: 0000000000000000 RSI: ffffffff82522f5a RDI: 0000000000000005
[ 127.168596][ C0] RBP: 0000000000000000 R08: ffffffff85a2b840 R09: 0000ffff8584b160
[ 127.176556][ C0] R10: 0000ffff85a03e38 R11: 0000ffff8584b167 R12: ffffffff85a2b840
[ 127.184522][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85a2b840
[ 127.192499][ C0] ? debug_smp_processor_id+0x31/0x129
[ 127.197954][ C0] ? debug_smp_processor_id+0x3a/0x129
[ 127.203427][ C0] default_idle+0x21/0x170
[ 127.207858][ C0] do_idle+0x1b7/0x290
[ 127.211939][ C0] ? debug_smp_processor_id+0x3a/0x129
[ 127.217444][ C0] cpu_startup_entry+0x14/0x20
[ 127.222207][ C0] rest_init+0xe4/0xeb
[ 127.226307][ C0] arch_call_rest_init+0x13/0x2b
[ 127.231236][ C0] start_kernel+0xcc2/0xceb
[ 127.235734][ C0] secondary_startup_64+0xa4/0xb0
[ 127.241993][ C0] Kernel Offset: disabled
[ 127.246371][ C0] Rebooting in 86400 seconds..