Warning: Permanently added '10.128.0.108' (ECDSA) to the list of known hosts. 2020/05/29 02:29:41 fuzzer started 2020/05/29 02:29:42 dialing manager at 10.128.0.105:45871 2020/05/29 02:30:00 syscalls: 3055 2020/05/29 02:30:00 code coverage: enabled 2020/05/29 02:30:00 comparison tracing: enabled 2020/05/29 02:30:00 extra coverage: enabled 2020/05/29 02:30:00 setuid sandbox: enabled 2020/05/29 02:30:00 namespace sandbox: enabled 2020/05/29 02:30:00 Android sandbox: /sys/fs/selinux/policy does not exist 2020/05/29 02:30:00 fault injection: enabled 2020/05/29 02:30:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/05/29 02:30:00 net packet injection: enabled 2020/05/29 02:30:00 net device setup: enabled 2020/05/29 02:30:00 concurrency sanitizer: enabled 2020/05/29 02:30:00 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/05/29 02:30:00 USB emulation: enabled [ 69.957332][ T8931] KCSAN: could not find function: '_find_next_bit' [ 71.764527][ T8931] KCSAN: could not find function: 'poll_schedule_timeout' 2020/05/29 02:30:03 adding functions to KCSAN blacklist: 'copy_process' 'ep_poll' 'file_update_time' 'do_nanosleep' 'add_timer' 'mod_timer' '_find_next_bit' 'ktime_get_real_seconds' 'run_timer_softirq' 'blk_mq_dispatch_rq_list' 'page_counter_charge' 'ext4_ext_try_to_merge_right' '__ext4_new_inode' 'ext4_mb_find_by_goal' 'xas_clear_mark' 'blk_mq_get_request' 'direct_page_fault' 'tick_nohz_idle_stop_tick' 'alloc_pid' 'generic_fillattr' 'ext4_free_inodes_count' 'generic_write_end' 'poll_schedule_timeout' 'do_group_exit' 'shmem_file_read_iter' 'ext4_mb_good_group' 'kauditd_thread' 'find_get_pages_range_tag' 'futex_wait_queue_me' 'blk_mq_sched_dispatch_requests' [ 161.802395][ C0] ================================================================== [ 161.810544][ C0] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer [ 161.818597][ C0] [ 161.820924][ C0] write to 0xffffffff8764e210 of 4 bytes by interrupt on cpu 1: [ 161.828555][ C0] tick_sched_do_timer+0xb4/0xd0 [ 161.833481][ C0] tick_sched_timer+0x3f/0xd0 [ 161.838130][ C0] __hrtimer_run_queues+0x271/0x600 [ 161.843304][ C0] hrtimer_interrupt+0x226/0x490 [ 161.848223][ C0] smp_apic_timer_interrupt+0xd8/0x270 [ 161.853704][ C0] apic_timer_interrupt+0xf/0x20 [ 161.858608][ C0] [ 161.860914][ C0] read to 0xffffffff8764e210 of 4 bytes by interrupt on cpu 0: [ 161.868481][ C0] tick_sched_do_timer+0x2e/0xd0 [ 161.873435][ C0] tick_sched_timer+0x3f/0xd0 [ 161.878199][ C0] __hrtimer_run_queues+0x271/0x600 [ 161.883375][ C0] hrtimer_interrupt+0x226/0x490 [ 161.888291][ C0] smp_apic_timer_interrupt+0xd8/0x270 [ 161.893756][ C0] apic_timer_interrupt+0xf/0x20 [ 161.898670][ C0] native_safe_halt+0xe/0x10 [ 161.903231][ C0] default_idle+0x21/0x170 [ 161.907643][ C0] do_idle+0x1b7/0x290 [ 161.911686][ C0] cpu_startup_entry+0x14/0x20 [ 161.916419][ C0] rest_init+0xe4/0xeb [ 161.920474][ C0] arch_call_rest_init+0x13/0x2b [ 161.925382][ C0] start_kernel+0x7fe/0x823 [ 161.929859][ C0] secondary_startup_64+0xa4/0xb0 [ 161.934847][ C0] [ 161.937145][ C0] Reported by Kernel Concurrency Sanitizer on: [ 161.943299][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0 [ 161.951165][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 161.961191][ C0] ================================================================== [ 161.969232][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 161.975802][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0 [ 161.983659][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 161.993684][ C0] Call Trace: [ 161.996953][ C0] [ 161.999784][ C0] dump_stack+0x11d/0x187 [ 162.004087][ C0] panic+0x210/0x640 [ 162.007970][ C0] ? vprintk_func+0x89/0x13a [ 162.012548][ C0] kcsan_report.cold+0xc/0x1a [ 162.017202][ C0] kcsan_setup_watchpoint+0x3fb/0x440 [ 162.022549][ C0] tick_sched_do_timer+0x2e/0xd0 [ 162.027460][ C0] tick_sched_timer+0x3f/0xd0 [ 162.032109][ C0] __hrtimer_run_queues+0x271/0x600 [ 162.037282][ C0] ? tick_sched_do_timer+0xd0/0xd0 [ 162.042370][ C0] hrtimer_interrupt+0x226/0x490 [ 162.047280][ C0] ? kvm_clock_read+0x14/0x30 [ 162.051935][ C0] smp_apic_timer_interrupt+0xd8/0x270 [ 162.057370][ C0] apic_timer_interrupt+0xf/0x20 [ 162.062286][ C0] [ 162.065208][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 162.070564][ C0] Code: ff cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 0c d6 58 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d fc d5 58 00 fb f4 cc 41 54 55 53 e8 97 b2 71 fb e8 a2 21 bc fc 0f 1f 44 00 00 48 [ 162.090151][ C0] RSP: 0018:ffffffff87203e70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 162.098535][ C0] RAX: 0000000000000000 RBX: ffffffff8722b840 RCX: ffffffff8285fdf1 [ 162.106492][ C0] RDX: 0000000000000000 RSI: ffffffff8285fdfa RDI: 0000000000000005 [ 162.114445][ C0] RBP: 0000000000000000 R08: ffffffff8722b840 R09: 0000ffff87047920 [ 162.122391][ C0] R10: 0000ffff87203e58 R11: 0000ffff87047927 R12: ffffffff8722b840 [ 162.130334][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8722b840 [ 162.138299][ C0] ? debug_smp_processor_id+0x31/0x129 [ 162.143727][ C0] ? debug_smp_processor_id+0x3a/0x129 [ 162.149161][ C0] default_idle+0x21/0x170 [ 162.153551][ C0] do_idle+0x1b7/0x290 [ 162.157590][ C0] ? do_idle+0xe0/0x290 [ 162.161720][ C0] cpu_startup_entry+0x14/0x20 [ 162.166454][ C0] rest_init+0xe4/0xeb [ 162.170498][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 162.176711][ C0] arch_call_rest_init+0x13/0x2b [ 162.181643][ C0] start_kernel+0x7fe/0x823 [ 162.186132][ C0] secondary_startup_64+0xa4/0xb0 [ 162.192347][ C0] Kernel Offset: disabled [ 162.196662][ C0] Rebooting in 86400 seconds..