Warning: Permanently added '10.128.10.56' (ECDSA) to the list of known hosts. 2020/07/25 17:30:44 fuzzer started 2020/07/25 17:30:44 dialing manager at 10.128.0.105:38489 2020/07/25 17:30:44 syscalls: 3224 2020/07/25 17:30:44 code coverage: enabled 2020/07/25 17:30:44 comparison tracing: enabled 2020/07/25 17:30:44 extra coverage: enabled 2020/07/25 17:30:44 setuid sandbox: enabled 2020/07/25 17:30:44 namespace sandbox: enabled 2020/07/25 17:30:44 Android sandbox: /sys/fs/selinux/policy does not exist 2020/07/25 17:30:44 fault injection: enabled 2020/07/25 17:30:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/07/25 17:30:44 net packet injection: enabled 2020/07/25 17:30:44 net device setup: enabled 2020/07/25 17:30:44 concurrency sanitizer: enabled 2020/07/25 17:30:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/07/25 17:30:44 USB emulation: enabled 2020/07/25 17:30:48 suppressing KCSAN reports in functions: 'ext4_free_inode' 'dd_has_work' 'do_sys_poll' 'exit_mm' 'shmem_add_to_page_cache' '__delete_from_page_cache' 'file_remove_privs' 'snd_seq_check_queue' '__ext4_new_inode' 'generic_write_end' 'do_epoll_wait' 'ext4_sync_file' 'alloc_pid' 'blk_mq_dispatch_rq_list' 'audit_log_start' '__mark_inode_dirty' 'xas_find_marked' 'ext4_mb_regular_allocator' 'do_nanosleep' 'n_tty_receive_buf_common' '__add_to_page_cache_locked' 'ext4_mb_good_group' '__ext4_update_other_inode_time' '__xa_clear_mark' 'futex_wait_queue_me' '__mod_timer' 'expire_timers' 'snd_rawmidi_poll' 'pcpu_alloc' 'ext4_mark_iloc_dirty' 'find_get_pages_range_tag' 'ext4_writepages' '__find_get_block' 'kauditd_thread' 'do_syslog' 'do_signal_stop' 'yama_relation_cleanup' 'handle_irq_event' 'blk_mq_rq_ctx_init' '__delayacct_blkio_end' 'blk_mq_sched_dispatch_requests' 'page_counter_charge' 'ext4_free_inodes_count' 'sit_tunnel_xmit' 'do_select' 'padata_reorder' 'snd_rawmidi_transmit' [ 98.752059][ C0] ================================================================== [ 98.760159][ C0] BUG: KCSAN: data-race in add_timer_on / timer_clear_idle [ 98.767320][ C0] [ 98.769638][ C0] write to 0xffff88812c11cb24 of 1 bytes by task 0 on cpu 1: [ 98.777173][ C0] timer_clear_idle+0x2e/0x40 [ 98.781930][ C0] tick_nohz_idle_retain_tick+0x3e/0x40 [ 98.787621][ C0] do_idle+0x287/0x310 [ 98.791749][ C0] cpu_startup_entry+0x15/0x20 [ 98.797012][ C0] start_secondary+0xe3/0x110 [ 98.801667][ C0] secondary_startup_64+0xa4/0xb0 [ 98.806663][ C0] [ 98.808975][ C0] read to 0xffff88812c11cb24 of 1 bytes by interrupt on cpu 0: [ 98.817581][ C0] add_timer_on+0x218/0x3b0 [ 98.822071][ C0] clocksource_watchdog+0x729/0x760 [ 98.827260][ C0] call_timer_fn+0x30/0x2a0 [ 98.831749][ C0] expire_timers+0x116/0x290 [ 98.836317][ C0] __run_timers+0x443/0x500 [ 98.840804][ C0] run_timer_softirq+0x2e/0x60 [ 98.845542][ C0] __do_softirq+0x198/0x360 [ 98.850023][ C0] asm_call_on_stack+0xf/0x20 [ 98.854693][ C0] do_softirq_own_stack+0x5d/0x80 [ 98.859693][ C0] __irq_exit_rcu+0x115/0x120 [ 98.864349][ C0] sysvec_apic_timer_interrupt+0xba/0xd0 [ 98.869969][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 98.875931][ C0] native_safe_halt+0xe/0x10 [ 98.880503][ C0] acpi_idle_enter+0x2ff/0x680 [ 98.885368][ C0] cpuidle_enter_state+0x245/0x5d0 [ 98.890466][ C0] cpuidle_enter+0x3c/0x60 [ 98.894864][ C0] do_idle+0x229/0x310 [ 98.900143][ C0] cpu_startup_entry+0x15/0x20 [ 98.905599][ C0] rest_init+0xd8/0xe0 [ 98.909659][ C0] arch_call_rest_init+0xa/0xb [ 98.914679][ C0] start_kernel+0x608/0x6d0 [ 98.919159][ C0] secondary_startup_64+0xa4/0xb0 [ 98.925210][ C0] [ 98.928266][ C0] Reported by Kernel Concurrency Sanitizer on: [ 98.935323][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc6-syzkaller #0 [ 98.943632][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.953667][ C0] ================================================================== [ 98.961706][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 98.968286][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc6-syzkaller #0 [ 98.978583][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.989885][ C0] Call Trace: [ 98.993149][ C0] [ 98.996091][ C0] dump_stack+0x10f/0x19d [ 99.000408][ C0] panic+0x207/0x64a [ 99.006299][ C0] ? vprintk_emit+0x44a/0x4f0 [ 99.010967][ C0] kcsan_report+0x684/0x690 [ 99.016669][ C0] ? kcsan_setup_watchpoint+0x453/0x4d0 [ 99.022284][ C0] ? add_timer_on+0x218/0x3b0 [ 99.026937][ C0] ? clocksource_watchdog+0x729/0x760 [ 99.032312][ C0] ? call_timer_fn+0x30/0x2a0 [ 99.036982][ C0] ? expire_timers+0x116/0x290 [ 99.041787][ C0] ? __run_timers+0x443/0x500 [ 99.046443][ C0] ? run_timer_softirq+0x2e/0x60 [ 99.051442][ C0] ? __do_softirq+0x198/0x360 [ 99.057336][ C0] ? asm_call_on_stack+0xf/0x20 [ 99.062859][ C0] ? do_softirq_own_stack+0x5d/0x80 [ 99.069440][ C0] ? __irq_exit_rcu+0x115/0x120 [ 99.074453][ C0] ? sysvec_apic_timer_interrupt+0xba/0xd0 [ 99.080433][ C0] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 99.086835][ C0] ? native_safe_halt+0xe/0x10 [ 99.091573][ C0] ? acpi_idle_enter+0x2ff/0x680 [ 99.097460][ C0] ? cpuidle_enter_state+0x245/0x5d0 [ 99.102720][ C0] ? cpuidle_enter+0x3c/0x60 [ 99.107386][ C0] ? do_idle+0x229/0x310 [ 99.111625][ C0] ? cpu_startup_entry+0x15/0x20 [ 99.117976][ C0] ? rest_init+0xd8/0xe0 [ 99.123192][ C0] ? arch_call_rest_init+0xa/0xb [ 99.128126][ C0] ? start_kernel+0x608/0x6d0 [ 99.132888][ C0] ? secondary_startup_64+0xa4/0xb0 [ 99.138091][ C0] ? __netif_receive_skb_list_core+0x34b/0x450 [ 99.144676][ C0] kcsan_setup_watchpoint+0x453/0x4d0 [ 99.150029][ C0] add_timer_on+0x218/0x3b0 [ 99.154531][ C0] clocksource_watchdog+0x729/0x760 [ 99.160593][ C0] ? __clocksource_select+0x340/0x340 [ 99.166134][ C0] call_timer_fn+0x30/0x2a0 [ 99.170615][ C0] ? __clocksource_select+0x340/0x340 [ 99.175971][ C0] expire_timers+0x116/0x290 [ 99.180548][ C0] __run_timers+0x443/0x500 [ 99.185723][ C0] ? kvm_sched_clock_read+0x15/0x40 [ 99.190911][ C0] run_timer_softirq+0x2e/0x60 [ 99.195832][ C0] __do_softirq+0x198/0x360 [ 99.200307][ C0] asm_call_on_stack+0xf/0x20 [ 99.204963][ C0] [ 99.207891][ C0] do_softirq_own_stack+0x5d/0x80 [ 99.213005][ C0] __irq_exit_rcu+0x115/0x120 [ 99.217671][ C0] sysvec_apic_timer_interrupt+0xba/0xd0 [ 99.225723][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 99.231684][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 99.237071][ C0] Code: 75 0a e8 f5 a2 52 fb e9 03 ff ff ff e8 eb a2 52 fb e9 6d ff ff ff cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 74 38 4d 00 fb f4 90 e9 07 00 00 00 0f 00 2d 64 38 4d 00 f4 c3 cc cc 65 48 8b 04 [ 99.257359][ C0] RSP: 0018:ffffffff87a03d98 EFLAGS: 00000286 [ 99.263521][ C0] RAX: ffffffff87a2d118 RBX: 0000000000000000 RCX: 000000000000013a [ 99.271581][ C0] RDX: 0000ffff87a61f00 RSI: 0000000000000000 RDI: ffffffff87a61f00 [ 99.279542][ C0] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000ffff87a61f07 [ 99.287496][ C0] R10: 0000000000000002 R11: ffffffff87a2c700 R12: 0000000000000001 [ 99.295462][ C0] R13: ffff88812a4e7004 R14: 0000000000000001 R15: ffff88812b12ee70 [ 99.304121][ C0] acpi_idle_enter+0x2ff/0x680 [ 99.308863][ C0] cpuidle_enter_state+0x245/0x5d0 [ 99.314035][ C0] cpuidle_enter+0x3c/0x60 [ 99.318425][ C0] do_idle+0x229/0x310 [ 99.322568][ C0] cpu_startup_entry+0x15/0x20 [ 99.327324][ C0] rest_init+0xd8/0xe0 [ 99.331372][ C0] ? time_init+0xc/0xc [ 99.335448][ C0] arch_call_rest_init+0xa/0xb [ 99.340217][ C0] start_kernel+0x608/0x6d0 [ 99.344832][ C0] secondary_startup_64+0xa4/0xb0 [ 100.408780][ C0] Shutting down cpus with NMI [ 100.414587][ C0] Kernel Offset: disabled [ 100.418904][ C0] Rebooting in 86400 seconds..