Warning: Permanently added '10.128.1.57' (ECDSA) to the list of known hosts. 2020/05/06 17:00:59 fuzzer started 2020/05/06 17:00:59 dialing manager at 10.128.0.105:35115 2020/05/06 17:01:00 syscalls: 2965 2020/05/06 17:01:00 code coverage: enabled 2020/05/06 17:01:00 comparison tracing: enabled 2020/05/06 17:01:00 extra coverage: enabled 2020/05/06 17:01:00 setuid sandbox: enabled 2020/05/06 17:01:00 namespace sandbox: enabled 2020/05/06 17:01:00 Android sandbox: /sys/fs/selinux/policy does not exist 2020/05/06 17:01:00 fault injection: enabled 2020/05/06 17:01:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/05/06 17:01:00 net packet injection: enabled 2020/05/06 17:01:00 net device setup: enabled 2020/05/06 17:01:00 concurrency sanitizer: enabled 2020/05/06 17:01:00 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/05/06 17:01:00 USB emulation: /dev/raw-gadget does not exist [ 46.066785][ T6725] KCSAN: could not find function: '_find_next_bit' [ 47.011969][ T6725] KCSAN: could not find function: 'poll_schedule_timeout' 2020/05/06 17:01:04 adding functions to KCSAN blacklist: 'ext4_free_inodes_count' 'ep_poll' '__ext4_new_inode' 'install_new_memslots' 'blk_mq_dispatch_rq_list' 'xas_clear_mark' '_find_next_bit' 'mod_timer' 'pipe_wait' 'kauditd_thread' 'ext4_mark_iloc_dirty' 'generic_write_end' 'tick_sched_do_timer' 'generic_fillattr' '__synchronize_hardirq' 'do_syslog' 'poll_schedule_timeout' 'do_exit' 'echo_char' '__snd_rawmidi_transmit_ack' 'find_get_pages_range_tag' 'copy_process' 'do_nanosleep' '__filemap_fdatawrite_range' 'page_counter_charge' 'blk_mq_get_request' 'wbt_done' 'blk_mq_sched_dispatch_requests' 'iptunnel_xmit' 'run_timer_softirq' 'ktime_get_real_seconds' [ 187.446349][ T0] ================================================================== [ 187.454609][ T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_next_event [ 187.463181][ T0] [ 187.465512][ T0] write to 0xffffffff85f0ef50 of 4 bytes by task 0 on cpu 1: [ 187.472906][ T0] tick_nohz_idle_stop_tick+0x52c/0x680 [ 187.478450][ T0] do_idle+0x1ad/0x290 [ 187.482513][ T0] cpu_startup_entry+0x14/0x20 [ 187.487282][ T0] start_secondary+0x169/0x1b0 [ 187.492133][ T0] secondary_startup_64+0xa4/0xb0 [ 187.497161][ T0] [ 187.499486][ T0] read to 0xffffffff85f0ef50 of 4 bytes by task 0 on cpu 0: [ 187.506770][ T0] tick_nohz_next_event+0x181/0x340 [ 187.511966][ T0] tick_nohz_idle_stop_tick+0x3b9/0x680 [ 187.517505][ T0] do_idle+0x1ad/0x290 [ 187.521568][ T0] cpu_startup_entry+0x14/0x20 [ 187.526329][ T0] rest_init+0xe4/0xeb [ 187.530414][ T0] arch_call_rest_init+0x13/0x2b [ 187.535356][ T0] start_kernel+0x82d/0x852 [ 187.539863][ T0] secondary_startup_64+0xa4/0xb0 [ 187.544870][ T0] [ 187.547188][ T0] Reported by Kernel Concurrency Sanitizer on: [ 187.553344][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0 [ 187.561325][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 187.571364][ T0] ================================================================== [ 187.579510][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 187.586221][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0 [ 187.594092][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 187.604144][ T0] Call Trace: [ 187.607441][ T0] dump_stack+0x11d/0x187 [ 187.612032][ T0] panic+0x210/0x640 [ 187.615924][ T0] ? vprintk_func+0x89/0x13a [ 187.620536][ T0] kcsan_report.cold+0xc/0x1a [ 187.625238][ T0] kcsan_setup_watchpoint+0x3fb/0x440 [ 187.630611][ T0] tick_nohz_next_event+0x181/0x340 [ 187.635808][ T0] tick_nohz_idle_stop_tick+0x3b9/0x680 [ 187.641349][ T0] ? ktime_get+0x1c9/0x210 [ 187.645870][ T0] ? debug_smp_processor_id+0x3f/0x129 [ 187.651329][ T0] do_idle+0x1ad/0x290 [ 187.655426][ T0] ? debug_smp_processor_id+0x3a/0x129 [ 187.660893][ T0] cpu_startup_entry+0x14/0x20 [ 187.665655][ T0] rest_init+0xe4/0xeb [ 187.669719][ T0] arch_call_rest_init+0x13/0x2b [ 187.674655][ T0] start_kernel+0x82d/0x852 [ 187.679268][ T0] secondary_startup_64+0xa4/0xb0 [ 187.685624][ T0] Kernel Offset: disabled [ 187.690120][ T0] Rebooting in 86400 seconds..