Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts.
2020/04/13 01:00:14 fuzzer started
2020/04/13 01:00:15 dialing manager at 10.128.0.105:35683
2020/04/13 01:00:15 syscalls: 2957
2020/04/13 01:00:15 code coverage: enabled
2020/04/13 01:00:15 comparison tracing: enabled
2020/04/13 01:00:15 extra coverage: enabled
2020/04/13 01:00:15 setuid sandbox: enabled
2020/04/13 01:00:15 namespace sandbox: enabled
2020/04/13 01:00:15 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/13 01:00:15 fault injection: enabled
2020/04/13 01:00:15 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/13 01:00:15 net packet injection: enabled
2020/04/13 01:00:15 net device setup: enabled
2020/04/13 01:00:15 concurrency sanitizer: enabled
2020/04/13 01:00:15 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/04/13 01:00:15 USB emulation: /dev/raw-gadget does not exist
[   58.935813][ T7776] KCSAN: could not find function: '_find_next_bit'
[   60.962986][ T7776] KCSAN: could not find function: 'poll_schedule_timeout'
2020/04/13 01:00:18 adding functions to KCSAN blacklist: 'lruvec_lru_size' '_find_next_bit' 'ext4_ext_insert_extent' 'kauditd_thread' 'do_nanosleep' 'alloc_pid' 'ep_poll' '__ext4_new_inode' 'xas_clear_mark' 'generic_write_end' 'pcpu_alloc' 'ext4_nonda_switch' 'blk_mq_dispatch_rq_list' 'ext4_mark_iloc_dirty' 'poll_schedule_timeout' 'blk_mq_sched_dispatch_requests' 'generic_fillattr' 'mod_timer' 'ext4_has_free_clusters' 
[  115.554947][    T0] ==================================================================
[  115.563332][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_sched_do_timer
[  115.572197][    T0] 
[  115.574526][    T0] write to 0xffffffff85d056d0 of 4 bytes by interrupt on cpu 0:
[  115.582219][    T0]  tick_sched_do_timer+0xb4/0xd0
[  115.587621][    T0]  tick_sched_timer+0x3f/0xd0
[  115.592293][    T0]  __hrtimer_run_queues+0x271/0x600
[  115.597505][    T0]  hrtimer_interrupt+0x226/0x490
[  115.602463][    T0]  smp_apic_timer_interrupt+0xd8/0x270
[  115.607966][    T0]  apic_timer_interrupt+0xf/0x20
[  115.612913][    T0]  kmem_cache_alloc+0xa9/0x5e0
[  115.617678][    T0]  skb_clone+0xf4/0x280
[  115.622013][    T0]  dev_queue_xmit_nit+0x2b8/0x600
[  115.627742][    T0]  dev_hard_start_xmit+0x3ed/0x420
[  115.632887][    T0]  sch_direct_xmit+0x2ae/0x8a0
[  115.637694][    T0]  __dev_queue_xmit+0x13bb/0x1b80
[  115.642712][    T0]  dev_queue_xmit+0x1e/0x30
[  115.647562][    T0]  ip_finish_output2+0x87d/0xed0
[  115.652516][    T0]  __ip_finish_output+0x22f/0x460
[  115.657544][    T0]  ip_finish_output+0x3e/0x160
[  115.662317][    T0]  ip_output+0xf2/0x240
[  115.666521][    T0]  ip_local_out+0x70/0x90
[  115.670839][    T0]  __ip_queue_xmit+0x3a6/0xa40
[  115.675758][    T0]  ip_queue_xmit+0x3e/0x50
[  115.680180][    T0]  __tcp_transmit_skb+0xe1f/0x1c90
[  115.685293][    T0]  __tcp_send_ack+0x22c/0x2f0
[  115.689980][    T0]  tcp_send_ack+0x2d/0x40
[  115.694307][    T0]  tcp_cleanup_rbuf+0x124/0x340
[  115.699290][    T0]  tcp_recvmsg+0x687/0x1cc0
[  115.703940][    T0]  inet_recvmsg+0xc1/0x250
[  115.708457][    T0]  sock_recvmsg+0x8e/0xb0
[  115.712908][    T0]  sock_read_iter+0x185/0x230
[  115.717597][    T0]  new_sync_read+0x416/0x450
[  115.722339][    T0]  __vfs_read+0x9e/0xb0
[  115.726571][    T0]  vfs_read+0x13e/0x2b0
[  115.730730][    T0]  ksys_read+0x16a/0x1a0
[  115.734980][    T0]  __x64_sys_read+0x49/0x60
[  115.739504][    T0]  do_syscall_64+0xc7/0x390
[  115.744020][    T0]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  115.750012][    T0] 
[  115.752341][    T0] read to 0xffffffff85d056d0 of 4 bytes by task 0 on cpu 1:
[  115.759741][    T0]  tick_nohz_idle_stop_tick+0x191/0x680
[  115.765399][    T0]  do_idle+0x1ad/0x290
[  115.769461][    T0]  cpu_startup_entry+0x14/0x20
[  115.774455][    T0]  start_secondary+0x164/0x1b0
[  115.779228][    T0]  secondary_startup_64+0xa4/0xb0
[  115.784246][    T0] 
[  115.786695][    T0] Reported by Kernel Concurrency Sanitizer on:
[  115.793007][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc1-syzkaller #0
[  115.800891][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  115.810977][    T0] ==================================================================
[  115.819037][    T0] Kernel panic - not syncing: panic_on_warn set ...
[  115.825650][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc1-syzkaller #0
[  115.833545][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  115.844578][    T0] Call Trace:
[  115.847955][    T0]  dump_stack+0x11d/0x187
[  115.852281][    T0]  panic+0x210/0x640
[  115.856186][    T0]  ? vprintk_func+0x89/0x13a
[  115.860903][    T0]  kcsan_report.cold+0xc/0xf
[  115.865518][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[  115.871188][    T0]  tick_nohz_idle_stop_tick+0x191/0x680
[  115.876897][    T0]  do_idle+0x1ad/0x290
[  115.880963][    T0]  ? debug_smp_processor_id+0x3a/0x129
[  115.886442][    T0]  cpu_startup_entry+0x14/0x20
[  115.891334][    T0]  start_secondary+0x164/0x1b0
[  115.896229][    T0]  secondary_startup_64+0xa4/0xb0
[  115.903058][    T0] Kernel Offset: disabled
[  115.907494][    T0] Rebooting in 86400 seconds..