Warning: Permanently added '10.128.1.47' (ECDSA) to the list of known hosts. 2020/05/30 02:47:40 fuzzer started 2020/05/30 02:47:40 dialing manager at 10.128.0.105:42021 2020/05/30 02:47:42 syscalls: 3055 2020/05/30 02:47:42 code coverage: enabled 2020/05/30 02:47:42 comparison tracing: enabled 2020/05/30 02:47:42 extra coverage: enabled 2020/05/30 02:47:42 setuid sandbox: enabled 2020/05/30 02:47:42 namespace sandbox: enabled 2020/05/30 02:47:42 Android sandbox: /sys/fs/selinux/policy does not exist 2020/05/30 02:47:42 fault injection: enabled 2020/05/30 02:47:42 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/05/30 02:47:42 net packet injection: enabled 2020/05/30 02:47:42 net device setup: enabled 2020/05/30 02:47:42 concurrency sanitizer: enabled 2020/05/30 02:47:42 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/05/30 02:47:42 USB emulation: enabled [ 51.400084][ T8918] KCSAN: could not find function: '_find_next_bit' 2020/05/30 02:47:44 adding functions to KCSAN blacklist: 'generic_fillattr' 'do_nanosleep' 'mod_timer' 'futex_wait_queue_me' 'ext4_free_inodes_count' 'ext4_ext_handle_unwritten_extents' 'ext4_ext_index_trans_blocks' 'find_get_pages_range_tag' '_find_next_bit' 'ep_poll' 'run_timer_softirq' 'alloc_pid' 'tick_sched_do_timer' 'generic_write_end' [ 51.738224][ T0] ================================================================== [ 51.746525][ T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_idle_stop_tick [ 51.755511][ T0] [ 51.757832][ T0] write to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 0: [ 51.765196][ T0] tick_nohz_idle_stop_tick+0x52c/0x680 [ 51.770866][ T0] do_idle+0x1ad/0x290 [ 51.775138][ T0] cpu_startup_entry+0x14/0x20 [ 51.779897][ T0] rest_init+0xe4/0xeb [ 51.784363][ T0] arch_call_rest_init+0x13/0x2b [ 51.789309][ T0] start_kernel+0x7fe/0x823 [ 51.793965][ T0] secondary_startup_64+0xa4/0xb0 [ 51.799059][ T0] [ 51.801383][ T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 1: [ 51.808654][ T0] tick_nohz_idle_stop_tick+0x191/0x680 [ 51.814311][ T0] do_idle+0x1ad/0x290 [ 51.818363][ T0] cpu_startup_entry+0x14/0x20 [ 51.823115][ T0] start_secondary+0x169/0x1b0 [ 51.827874][ T0] secondary_startup_64+0xa4/0xb0 [ 51.833597][ T0] [ 51.836456][ T0] Reported by Kernel Concurrency Sanitizer on: [ 51.842753][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0 [ 51.850635][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.861318][ T0] ================================================================== [ 51.869606][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 51.876328][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0 [ 51.884324][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.894376][ T0] Call Trace: [ 51.897786][ T0] dump_stack+0x11d/0x187 [ 51.902215][ T0] panic+0x210/0x640 [ 51.906187][ T0] ? vprintk_func+0x89/0x13a [ 51.910769][ T0] kcsan_report.cold+0xc/0x1a [ 51.915443][ T0] kcsan_setup_watchpoint+0x3fb/0x440 [ 51.921078][ T0] tick_nohz_idle_stop_tick+0x191/0x680 [ 51.926775][ T0] do_idle+0x1ad/0x290 [ 51.930924][ T0] cpu_startup_entry+0x14/0x20 [ 51.935756][ T0] start_secondary+0x169/0x1b0 [ 51.940677][ T0] secondary_startup_64+0xa4/0xb0 [ 51.947394][ T0] Kernel Offset: disabled [ 51.951720][ T0] Rebooting in 86400 seconds..