Warning: Permanently added '10.128.10.38' (ECDSA) to the list of known hosts.
2020/04/13 09:31:53 fuzzer started
2020/04/13 09:31:55 dialing manager at 10.128.0.105:35683
2020/04/13 09:31:55 syscalls: 2957
2020/04/13 09:31:55 code coverage: enabled
2020/04/13 09:31:55 comparison tracing: enabled
2020/04/13 09:31:55 extra coverage: enabled
2020/04/13 09:31:55 setuid sandbox: enabled
2020/04/13 09:31:55 namespace sandbox: enabled
2020/04/13 09:31:55 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/13 09:31:55 fault injection: enabled
2020/04/13 09:31:55 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/13 09:31:55 net packet injection: enabled
2020/04/13 09:31:55 net device setup: enabled
2020/04/13 09:31:55 concurrency sanitizer: enabled
2020/04/13 09:31:55 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/04/13 09:31:55 USB emulation: /dev/raw-gadget does not exist
syzkaller login: [ 61.632929][ T7833] KCSAN: could not find function: 'poll_schedule_timeout'
[ 62.789446][ T7833] KCSAN: could not find function: '_find_next_bit'
2020/04/13 09:32:01 adding functions to KCSAN blacklist: 'xas_find_marked' 'audit_log_start' 'poll_schedule_timeout' 'generic_fillattr' 'ext4_has_free_clusters' 'wbt_done' 'vfs_unlink' 'wbt_issue' 'atime_needs_update' '__filemap_fdatawrite_range' 'lruvec_lru_size' '_find_next_bit' 'kauditd_thread' 'do_nanosleep' 'alloc_pid' 'tick_nohz_idle_stop_tick' 'find_get_pages_range_tag' 'ep_poll' '__ext4_new_inode' 'xas_clear_mark' 'generic_write_end' 'shmem_file_read_iter' 'dd_has_work' 'ext4_writepages' 'echo_char' 'pcpu_alloc' 'blk_mq_dispatch_rq_list' '__mark_inode_dirty' 'copy_process' 'do_syslog' 'ktime_get_real_seconds' 'list_lru_count_one' '__ip4_datagram_connect' 'blk_mq_sched_dispatch_requests' 'mod_timer' '__snd_rawmidi_transmit_ack' 'ext4_ext_insert_extent' 'add_timer' 'fsnotify' 'n_tty_receive_buf_common' 'ktime_get_seconds' 'ext4_nonda_switch' 'ext4_mark_iloc_dirty' 'run_timer_softirq' 'tick_sched_do_timer' 'blk_mq_get_request' 'ext4_free_inodes_count'
[ 231.689888][ C0] ==================================================================
[ 231.698270][ C0] BUG: KCSAN: data-race in timer_clear_idle / trigger_dyntick_cpu.isra.0
[ 231.706772][ C0]
[ 231.709090][ C0] write to 0xffff88812c11dbe4 of 1 bytes by task 0 on cpu 1:
[ 231.716447][ C0] timer_clear_idle+0x3d/0x50
[ 231.721118][ C0] __tick_nohz_idle_restart_tick+0x32/0x1a0
[ 231.727030][ C0] tick_nohz_idle_exit+0x19c/0x1d0
[ 231.732135][ C0] do_idle+0xac/0x290
[ 231.736104][ C0] cpu_startup_entry+0x14/0x20
[ 231.740872][ C0] start_secondary+0x164/0x1b0
[ 231.745713][ C0] secondary_startup_64+0xa4/0xb0
[ 231.750719][ C0]
[ 231.753049][ C0] read to 0xffff88812c11dbe4 of 1 bytes by interrupt on cpu 0:
[ 231.760674][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 231.766203][ C0] mod_timer+0x50e/0x830
[ 231.770427][ C0] sk_reset_timer+0x29/0xc0
[ 231.774913][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 231.780095][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 231.785188][ C0] tcp_rcv_established+0x72b/0xee0
[ 231.790300][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 231.794900][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 231.799408][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 231.805110][ C0] ip_local_deliver_finish+0xf3/0x120
[ 231.810484][ C0] ip_local_deliver+0x135/0x220
[ 231.815424][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 231.820639][ C0] ip_sublist_rcv+0x3f8/0x530
[ 231.825362][ C0] ip_list_rcv+0x2f3/0x321
[ 231.829762][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 231.835743][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 231.841910][ C0] gro_normal_list.part.0+0x37/0xa0
[ 231.848247][ C0] gro_normal_one+0x14c/0x160
[ 231.852907][ C0] napi_gro_receive+0x27d/0x2f0
[ 231.857745][ C0] receive_buf+0x24e/0x2e20
[ 231.862269][ C0] virtnet_poll+0x343/0x790
[ 231.866764][ C0] net_rx_action+0x3ad/0xac0
[ 231.871354][ C0] __do_softirq+0x118/0x34a
[ 231.875933][ C0] irq_exit+0xb5/0xd0
[ 231.879903][ C0] do_IRQ+0x7b/0x120
[ 231.884056][ C0] ret_from_intr+0x0/0x21
[ 231.888368][ C0] native_safe_halt+0xe/0x10
[ 231.893421][ C0] default_idle+0x21/0x170
[ 231.897861][ C0] do_idle+0x1b7/0x290
[ 231.901915][ C0] cpu_startup_entry+0x14/0x20
[ 231.906748][ C0] rest_init+0xe4/0xeb
[ 231.910802][ C0] arch_call_rest_init+0x13/0x2b
[ 231.915769][ C0] start_kernel+0xcc2/0xceb
[ 231.920256][ C0] secondary_startup_64+0xa4/0xb0
[ 231.926297][ C0]
[ 231.928600][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 231.934731][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 231.942600][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 231.952647][ C0] ==================================================================
[ 231.960692][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 231.967277][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc1-syzkaller #0
[ 231.975141][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 231.985279][ C0] Call Trace:
[ 231.988540][ C0]
[ 231.991386][ C0] dump_stack+0x11d/0x187
[ 231.995794][ C0] panic+0x210/0x640
[ 231.999862][ C0] ? vprintk_func+0x89/0x13a
[ 232.004439][ C0] kcsan_report.cold+0xc/0xf
[ 232.009029][ C0] kcsan_setup_watchpoint+0x3fb/0x440
[ 232.014387][ C0] trigger_dyntick_cpu.isra.0+0x6d/0xf0
[ 232.019965][ C0] mod_timer+0x50e/0x830
[ 232.024205][ C0] sk_reset_timer+0x29/0xc0
[ 232.028835][ C0] tcp_send_delayed_ack+0x1fd/0x280
[ 232.034026][ C0] __tcp_ack_snd_check+0x3bb/0x550
[ 232.039119][ C0] ? constant_test_bit+0xd/0x30
[ 232.044138][ C0] tcp_rcv_established+0x72b/0xee0
[ 232.049247][ C0] tcp_v4_do_rcv+0x396/0x4f0
[ 232.053872][ C0] tcp_v4_rcv+0x1bbf/0x1d80
[ 232.058387][ C0] ip_protocol_deliver_rcu+0x4b/0x410
[ 232.063745][ C0] ip_local_deliver_finish+0xf3/0x120
[ 232.069103][ C0] ip_local_deliver+0x135/0x220
[ 232.073944][ C0] ? ip_protocol_deliver_rcu+0x410/0x410
[ 232.079561][ C0] ip_sublist_rcv_finish+0xf0/0x140
[ 232.084937][ C0] ip_sublist_rcv+0x3f8/0x530
[ 232.089602][ C0] ? ip_sublist_rcv+0x530/0x530
[ 232.094437][ C0] ip_list_rcv+0x2f3/0x321
[ 232.098841][ C0] ? ip_rcv+0x1b0/0x1b0
[ 232.102980][ C0] __netif_receive_skb_list_core+0x368/0x5c0
[ 232.108956][ C0] ? ktime_get_with_offset+0x1e6/0x230
[ 232.114402][ C0] netif_receive_skb_list_internal+0x5c7/0x810
[ 232.120551][ C0] gro_normal_list.part.0+0x37/0xa0
[ 232.125746][ C0] ? __write_once_size+0x7c/0x100
[ 232.130789][ C0] gro_normal_one+0x14c/0x160
[ 232.135471][ C0] napi_gro_receive+0x27d/0x2f0
[ 232.140628][ C0] receive_buf+0x24e/0x2e20
[ 232.145129][ C0] ? virtqueue_get_buf_ctx+0x4db/0x5c0
[ 232.150580][ C0] virtnet_poll+0x343/0x790
[ 232.155080][ C0] net_rx_action+0x3ad/0xac0
[ 232.159660][ C0] __do_softirq+0x118/0x34a
[ 232.164174][ C0] irq_exit+0xb5/0xd0
[ 232.168142][ C0] do_IRQ+0x7b/0x120
[ 232.172034][ C0] common_interrupt+0xf/0xf
[ 232.176520][ C0]
[ 232.179446][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 232.184813][ 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
[ 232.204422][ C0] RSP: 0018:ffffffff85a03e50 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffda
[ 232.212826][ C0] RAX: 0000000000000000 RBX: ffffffff85a2b840 RCX: ffffffff82522f51
[ 232.220780][ C0] RDX: 0000000000000000 RSI: ffffffff82522f5a RDI: 0000000000000005
[ 232.228737][ C0] RBP: 0000000000000000 R08: ffffffff85a2b840 R09: 0000ffff8584b160
[ 232.236951][ C0] R10: 0000ffff85a03e38 R11: 0000ffff8584b167 R12: ffffffff85a2b840
[ 232.244901][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85a2b840
[ 232.252869][ C0] ? debug_smp_processor_id+0x31/0x129
[ 232.258309][ C0] ? debug_smp_processor_id+0x3a/0x129
[ 232.263769][ C0] default_idle+0x21/0x170
[ 232.268185][ C0] do_idle+0x1b7/0x290
[ 232.272704][ C0] ? debug_smp_processor_id+0x3f/0x129
[ 232.278160][ C0] cpu_startup_entry+0x14/0x20
[ 232.282922][ C0] rest_init+0xe4/0xeb
[ 232.286975][ C0] arch_call_rest_init+0x13/0x2b
[ 232.291897][ C0] start_kernel+0xcc2/0xceb
[ 232.296388][ C0] secondary_startup_64+0xa4/0xb0
[ 232.302861][ C0] Kernel Offset: disabled
[ 232.307344][ C0] Rebooting in 86400 seconds..