Warning: Permanently added '10.128.10.24' (ECDSA) to the list of known hosts. 2020/04/17 07:58:20 fuzzer started 2020/04/17 07:58:22 dialing manager at 10.128.0.105:37921 2020/04/17 07:58:22 syscalls: 2960 2020/04/17 07:58:22 code coverage: enabled 2020/04/17 07:58:22 comparison tracing: enabled 2020/04/17 07:58:22 extra coverage: enabled 2020/04/17 07:58:22 setuid sandbox: enabled 2020/04/17 07:58:22 namespace sandbox: enabled 2020/04/17 07:58:22 Android sandbox: /sys/fs/selinux/policy does not exist 2020/04/17 07:58:22 fault injection: enabled 2020/04/17 07:58:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/04/17 07:58:22 net packet injection: enabled 2020/04/17 07:58:22 net device setup: enabled 2020/04/17 07:58:22 concurrency sanitizer: enabled 2020/04/17 07:58:22 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/04/17 07:58:22 USB emulation: /dev/raw-gadget does not exist [ 46.311573][ T6745] KCSAN: could not find function: '_find_next_bit' 2020/04/17 07:58:24 adding functions to KCSAN blacklist: 'find_get_pages_range_tag' 'generic_write_end' 'page_counter_charge' 'wbt_done' 'attach_to_pi_owner' 'vm_area_dup' '_find_next_bit' 'ep_poll' 'xas_clear_mark' '__ext4_new_inode' 'add_timer' 'copy_process' 'generic_fillattr' 'shmem_file_read_iter' 'alloc_pid' 'ext4_mark_iloc_dirty' '__snd_rawmidi_transmit_ack' 'tick_nohz_idle_stop_tick' 'do_exit' [ 98.384013][ T0] ================================================================== [ 98.392184][ T0] BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_do_timer [ 98.400431][ T0] [ 98.402758][ T0] write to 0xffffffff85f0ef50 of 4 bytes by interrupt on cpu 0: [ 98.410401][ T0] tick_sched_do_timer+0xb4/0xd0 [ 98.415350][ T0] tick_sched_timer+0x3f/0xd0 [ 98.420039][ T0] __hrtimer_run_queues+0x271/0x600 [ 98.425369][ T0] hrtimer_interrupt+0x226/0x490 [ 98.431183][ T0] smp_apic_timer_interrupt+0xd8/0x270 [ 98.436671][ T0] apic_timer_interrupt+0xf/0x20 [ 98.441626][ T0] kcsan_setup_watchpoint+0x25a/0x440 [ 98.447006][ T0] nf_ct_acct_add+0x48/0x90 [ 98.451622][ T0] __nf_ct_refresh_acct+0x191/0x1a0 [ 98.456824][ T0] nf_conntrack_tcp_packet+0xc63/0x2fe0 [ 98.462371][ T0] nf_conntrack_in+0x3fe/0xa60 [ 98.467869][ T0] ipv4_conntrack_in+0x23/0x40 [ 98.472625][ T0] nf_hook_slow+0x7c/0x160 [ 98.477133][ T0] nf_hook_slow_list+0x140/0x29f [ 98.482059][ T0] ip_sublist_rcv+0x4f9/0x530 [ 98.486730][ T0] ip_list_rcv+0x2f3/0x321 [ 98.491136][ T0] __netif_receive_skb_list_core+0x368/0x5c0 [ 98.497157][ T0] netif_receive_skb_list_internal+0x5c7/0x810 [ 98.503475][ T0] gro_normal_list.part.0+0x37/0xa0 [ 98.508661][ T0] gro_normal_one+0x14c/0x160 [ 98.513329][ T0] napi_gro_receive+0x27d/0x2f0 [ 98.518170][ T0] receive_buf+0x252/0x2ed0 [ 98.527705][ T0] virtnet_poll+0x343/0x790 [ 98.532328][ T0] net_rx_action+0x3ad/0xac0 [ 98.536906][ T0] __do_softirq+0x118/0x34a [ 98.541402][ T0] run_ksoftirqd+0x41/0x60 [ 98.545804][ T0] smpboot_thread_fn+0x374/0x4a0 [ 98.550736][ T0] kthread+0x203/0x230 [ 98.554792][ T0] ret_from_fork+0x1f/0x30 [ 98.559181][ T0] [ 98.561541][ T0] read to 0xffffffff85f0ef50 of 4 bytes by task 0 on cpu 1: [ 98.568857][ T0] tick_nohz_next_event+0x181/0x340 [ 98.574257][ T0] tick_nohz_idle_stop_tick+0x3b9/0x680 [ 98.579984][ T0] do_idle+0x1ad/0x290 [ 98.588658][ T0] cpu_startup_entry+0x14/0x20 [ 98.593429][ T0] start_secondary+0x169/0x1b0 [ 98.598747][ T0] secondary_startup_64+0xa4/0xb0 [ 98.603752][ T0] [ 98.606193][ T0] Reported by Kernel Concurrency Sanitizer on: [ 98.612341][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0 [ 98.620256][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.630342][ T0] ================================================================== [ 98.638393][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 98.644986][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0 [ 98.652906][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.662945][ T0] Call Trace: [ 98.666236][ T0] dump_stack+0x11d/0x187 [ 98.670713][ T0] panic+0x210/0x640 [ 98.674595][ T0] ? vprintk_func+0x89/0x13a [ 98.679313][ T0] kcsan_report.cold+0xc/0x1a [ 98.683988][ T0] kcsan_setup_watchpoint+0x3fb/0x440 [ 98.689361][ T0] tick_nohz_next_event+0x181/0x340 [ 98.694557][ T0] tick_nohz_idle_stop_tick+0x3b9/0x680 [ 98.700089][ T0] ? ktime_get+0x1c9/0x210 [ 98.704499][ T0] ? debug_smp_processor_id+0x3f/0x129 [ 98.709948][ T0] do_idle+0x1ad/0x290 [ 98.714022][ T0] ? do_idle+0xe0/0x290 [ 98.718163][ T0] cpu_startup_entry+0x14/0x20 [ 98.722927][ T0] start_secondary+0x169/0x1b0 [ 98.727738][ T0] secondary_startup_64+0xa4/0xb0 [ 98.734008][ T0] Kernel Offset: disabled [ 98.738337][ T0] Rebooting in 86400 seconds..