Warning: Permanently added '10.128.0.206' (ECDSA) to the list of known hosts.
2019/10/11 18:58:44 fuzzer started
2019/10/11 18:58:45 dialing manager at 10.128.0.105:43913
2019/10/11 18:58:45 syscalls: 2523
2019/10/11 18:58:45 code coverage: enabled
2019/10/11 18:58:45 comparison tracing: enabled
2019/10/11 18:58:45 extra coverage: extra coverage is not supported by the kernel
2019/10/11 18:58:45 setuid sandbox: enabled
2019/10/11 18:58:45 namespace sandbox: enabled
2019/10/11 18:58:45 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/11 18:58:45 fault injection: enabled
2019/10/11 18:58:45 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/11 18:58:45 net packet injection: enabled
2019/10/11 18:58:45 net device setup: enabled
2019/10/11 18:58:45 concurrency sanitizer: enabled
syzkaller login: [ 47.731655][ C1] ==================================================================
[ 47.739770][ C1] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer
[ 47.747803][ C1]
[ 47.750136][ C1] write to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 0:
[ 47.757743][ C1] tick_sched_do_timer+0xc0/0xe0
[ 47.762654][ C1] tick_sched_timer+0x43/0xe0
[ 47.767305][ C1] __hrtimer_run_queues+0x288/0x600
[ 47.772480][ C1] hrtimer_interrupt+0x22a/0x480
[ 47.777492][ C1] smp_apic_timer_interrupt+0xdc/0x280
[ 47.782924][ C1] apic_timer_interrupt+0xf/0x20
[ 47.787848][ C1] __kcsan_check_watchpoint+0x49/0x180
[ 47.793282][ C1] __tsan_read4+0x15/0x30
[ 47.797602][ C1] tcp_rcv_established+0x5c5/0xf50
[ 47.803035][ C1] tcp_v4_do_rcv+0x381/0x4e0
[ 47.807600][ C1] __release_sock+0x135/0x1e0
[ 47.812252][ C1] release_sock+0x61/0x160
[ 47.816653][ C1] tcp_recvmsg+0x63b/0x1a30
[ 47.821134][ C1] inet_recvmsg+0xbb/0x250
[ 47.825529][ C1]
[ 47.827849][ C1] read to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 1:
[ 47.835380][ C1] tick_sched_do_timer+0x33/0xe0
[ 47.840294][ C1] tick_sched_timer+0x43/0xe0
[ 47.844949][ C1] __hrtimer_run_queues+0x288/0x600
[ 47.850122][ C1] hrtimer_interrupt+0x22a/0x480
[ 47.855037][ C1] smp_apic_timer_interrupt+0xdc/0x280
[ 47.860730][ C1] apic_timer_interrupt+0xf/0x20
[ 47.865657][ C1] __kcsan_setup_watchpoint+0x8a/0x510
[ 47.871101][ C1] __tsan_read8+0x2c/0x30
[ 47.875410][ C1] __napi_alloc_skb+0xae/0x210
[ 47.880150][ C1] page_to_skb+0x8d/0x480
[ 47.884453][ C1] receive_buf+0x17c7/0x30b0
[ 47.889015][ C1] virtnet_poll+0x436/0x7d0
[ 47.893492][ C1] net_rx_action+0x3ae/0xa50
[ 47.898050][ C1]
[ 47.900350][ C1] Reported by Kernel Concurrency Sanitizer on:
[ 47.906477][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0+ #0
[ 47.913222][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 47.923249][ C1] ==================================================================
[ 47.931281][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 47.937843][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0+ #0
[ 47.944573][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 47.954614][ C1] Call Trace:
[ 47.957871][ C1]
[ 47.960749][ C1] dump_stack+0xf5/0x159
[ 47.964985][ C1] panic+0x209/0x639
[ 47.968857][ C1] ? __napi_alloc_skb+0xae/0x210
[ 47.973770][ C1] ? vprintk_func+0x8d/0x140
[ 47.978340][ C1] kcsan_report.cold+0xc/0x1b
[ 47.982992][ C1] __kcsan_setup_watchpoint+0x3ee/0x510
[ 47.988524][ C1] __tsan_read4+0x2c/0x30
[ 47.992831][ C1] tick_sched_do_timer+0x33/0xe0
[ 47.997747][ C1] tick_sched_timer+0x43/0xe0
[ 48.002405][ C1] __hrtimer_run_queues+0x288/0x600
[ 48.007595][ C1] ? tick_sched_do_timer+0xe0/0xe0
[ 48.013136][ C1] hrtimer_interrupt+0x22a/0x480
[ 48.018065][ C1] ? debug_smp_processor_id+0x4c/0x172
[ 48.023518][ C1] smp_apic_timer_interrupt+0xdc/0x280
[ 48.028979][ C1] apic_timer_interrupt+0xf/0x20
[ 48.033897][ C1] RIP: 0010:__kcsan_setup_watchpoint+0x8a/0x510
[ 48.040126][ C1] Code: 5c 41 5d 41 5e 41 5f 5d c3 65 8b 05 64 95 af 7e 85 c0 0f 8f be 01 00 00 65 8b 05 59 95 af 7e 85 c0 7f d4 65 8a 05 52 95 af 7e <84> c0 75 c9 4c 89 ef e8 6a 06 00 00 84 c0 75 bd b9 01 00 00 00 65
[ 48.061454][ C1] RSP: 0018:ffffc90000d08b68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 48.069941][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000ffffffffffff
[ 48.077902][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881248fddc8
[ 48.085848][ C1] RBP: ffffc90000d08ba8 R08: 0000000000000000 R09: 00008881248fddcf
[ 48.093796][ C1] R10: 00000000aaaaaaab R11: ffffffff86042e00 R12: 0000000000000008
[ 48.101758][ C1] R13: ffff8881248fddc8 R14: ffff8881248fddc8 R15: 0000000000000200
[ 48.109732][ C1] ? apic_timer_interrupt+0xa/0x20
[ 48.114843][ C1] ? __kcsan_setup_watchpoint+0x96/0x510
[ 48.120452][ C1] __tsan_read8+0x2c/0x30
[ 48.124759][ C1] __napi_alloc_skb+0xae/0x210
[ 48.129515][ C1] page_to_skb+0x8d/0x480
[ 48.133824][ C1] receive_buf+0x17c7/0x30b0
[ 48.138390][ C1] ? __tsan_write8+0x32/0x40
[ 48.142961][ C1] ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[ 48.148393][ C1] ? __kcsan_setup_watchpoint+0x96/0x510
[ 48.153999][ C1] ? __kcsan_setup_watchpoint+0x96/0x510
[ 48.159625][ C1] virtnet_poll+0x436/0x7d0
[ 48.164110][ C1] net_rx_action+0x3ae/0xa50
[ 48.168692][ C1] __do_softirq+0x115/0x33f
[ 48.173177][ C1] irq_exit+0xbb/0xe0
[ 48.177146][ C1] do_IRQ+0xdf/0x150
[ 48.182066][ C1] common_interrupt+0xf/0xf
[ 48.186541][ C1]
[ 48.189474][ C1] RIP: 0010:tick_nohz_idle_enter+0xe0/0x110
[ 48.195346][ C1] Code: 4b 4c 04 e8 32 98 f5 ff 48 c7 c7 20 5a a5 85 e8 06 cc 13 00 48 83 3d 1e 53 66 04 00 74 28 e8 17 ef 06 00 fb 66 0f 1f 44 00 00 0b ca 13 00 5b 41 5c 41 5d 5d c3 e8 ff ee 06 00 0f 0b e8 f8 ee
[ 48.215151][ C1] RSP: 0018:ffffc90000cd3e88 EFLAGS: 00000293 ORIG_RAX: ffffffffffffffde
[ 48.224933][ C1] RAX: ffff88812b38f0c0 RBX: ffff88812bf1dce0 RCX: 0000000000000009
[ 48.232898][ C1] RDX: 0000000000000000 RSI: ffffffff813f0709 RDI: ffffffff85a55a20
[ 48.240947][ C1] RBP: ffffc90000cd3ea0 R08: 0000000000000000 R09: 0000ffff85a55a27
[ 48.248893][ C1] R10: 00000000aaaaaaab R11: ffffffff86042cc0 R12: 0000000b1c097be8
[ 48.256839][ C1] R13: ffff88812bf1dd2c R14: 0000000000000000 R15: 0000000000000000
[ 48.264910][ C1] ? tick_nohz_idle_enter+0xd9/0x110
[ 48.270174][ C1] ? tick_nohz_idle_enter+0xd9/0x110
[ 48.275435][ C1] do_idle+0x3c/0x2c0
[ 48.279394][ C1] cpu_startup_entry+0x1b/0x20
[ 48.284154][ C1] start_secondary+0x207/0x260
[ 48.288910][ C1] secondary_startup_64+0xa4/0xb0
[ 48.295313][ C1] Kernel Offset: disabled
[ 48.299645][ C1] Rebooting in 86400 seconds..