[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2.
[ 45.200623][ T26] audit: type=1800 audit(1573779690.022:21): pid=7460 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2452 res=0
[ 45.249397][ T26] audit: type=1800 audit(1573779690.022:22): pid=7460 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2480 res=0
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.213' (ECDSA) to the list of known hosts.
2019/11/15 01:01:42 fuzzer started
2019/11/15 01:01:44 dialing manager at 10.128.0.105:45453
2019/11/15 01:01:44 syscalls: 2566
2019/11/15 01:01:44 code coverage: enabled
2019/11/15 01:01:44 comparison tracing: enabled
2019/11/15 01:01:44 extra coverage: extra coverage is not supported by the kernel
2019/11/15 01:01:44 setuid sandbox: enabled
2019/11/15 01:01:44 namespace sandbox: enabled
2019/11/15 01:01:44 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/15 01:01:44 fault injection: enabled
2019/11/15 01:01:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/15 01:01:44 net packet injection: enabled
2019/11/15 01:01:44 net device setup: enabled
2019/11/15 01:01:44 concurrency sanitizer: enabled
2019/11/15 01:01:44 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 80.607022][ T7624] KCSAN: could not find function: 'poll_schedule_timeout'
[ 84.964455][ T0] ==================================================================
[ 84.977303][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 84.986220][ T0]
[ 84.988546][ T0] write to 0xffffffff86046008 of 8 bytes by interrupt on cpu 1:
[ 84.996200][ T0] tick_do_update_jiffies64+0x100/0x250
[ 85.001921][ T0] tick_sched_do_timer+0xd4/0xe0
[ 85.006956][ T0] tick_sched_timer+0x43/0xe0
[ 85.011628][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 85.017270][ T0] hrtimer_interrupt+0x22a/0x480
[ 85.022202][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 85.027674][ T0] apic_timer_interrupt+0xf/0x20
[ 85.032612][ T0] kcsan_setup_watchpoint+0x1d4/0x460
[ 85.037988][ T0] __tsan_unaligned_write1+0xc0/0x100
[ 85.043373][ T0] kallsyms_expand_symbol.constprop.0+0xe8/0x160
[ 85.049810][ T0] kallsyms_lookup_name+0x7f/0x120
[ 85.054913][ T0] debugfs_write+0x14b/0x2d0
[ 85.059496][ T0] full_proxy_write+0xbd/0x100
[ 85.064687][ T0] __vfs_write+0x67/0xc0
[ 85.068925][ T0] vfs_write+0x18a/0x390
[ 85.073257][ T0] ksys_write+0xd5/0x1b0
[ 85.077491][ T0] __x64_sys_write+0x4c/0x60
[ 85.082427][ T0] do_syscall_64+0xcc/0x370
[ 85.086942][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 85.092930][ T0]
[ 85.095342][ T0] read to 0xffffffff86046008 of 8 bytes by task 0 on cpu 0:
[ 85.103603][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 85.109076][ T0] tick_irq_enter+0x139/0x1c0
[ 85.113921][ T0] irq_enter+0x4f/0x60
[ 85.118010][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 85.123464][ T0] apic_timer_interrupt+0xf/0x20
[ 85.128392][ T0] native_safe_halt+0xe/0x10
[ 85.133432][ T0] arch_cpu_idle+0x1f/0x30
[ 85.137932][ T0] default_idle_call+0x1e/0x40
[ 85.142691][ T0] do_idle+0x1af/0x280
[ 85.146751][ T0] cpu_startup_entry+0x1b/0x20
[ 85.151684][ T0] rest_init+0xec/0xf6
[ 85.155762][ T0] arch_call_rest_init+0x17/0x37
[ 85.160691][ T0] start_kernel+0x838/0x85e
[ 85.165199][ T0] x86_64_start_reservations+0x29/0x2b
[ 85.170653][ T0] x86_64_start_kernel+0x72/0x76
[ 85.175585][ T0] secondary_startup_64+0xa4/0xb0
[ 85.180592][ T0]
[ 85.182911][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 85.189058][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc7+ #0
[ 85.196512][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 85.206937][ T0] ==================================================================
[ 85.215422][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 85.222004][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc7+ #0
[ 85.229184][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 85.239235][ T0] Call Trace:
[ 85.243807][ T0]
[ 85.246655][ T0] dump_stack+0x11d/0x181
[ 85.251505][ T0] panic+0x210/0x640
[ 85.255400][ T0] ? vprintk_func+0x8d/0x140
[ 85.259988][ T0] kcsan_report.cold+0xc/0x1a
[ 85.264663][ T0] kcsan_setup_watchpoint+0x3fe/0x460
[ 85.270029][ T0] __tsan_read8+0xc6/0x100
[ 85.274438][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 85.279891][ T0] tick_irq_enter+0x139/0x1c0
[ 85.284560][ T0] irq_enter+0x4f/0x60
[ 85.285126][ T7624] KCSAN: could not find function: 'fprop_reflect_period_percpu'
[ 85.288643][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 85.301793][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 85.307618][ T0] apic_timer_interrupt+0xf/0x20
[ 85.312652][ T0]
[ 85.315606][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 85.320988][ T0] Code: 90 90 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 6c 52 47 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 5c 52 47 00 fb f4 90 55 48 89 e5 41 55 41 54 53 e8 d2 9a 9f fc e8 bd 3f b5 fd 0f
[ 85.340597][ T0] RSP: 0018:ffffffff85a03de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 85.349006][ T0] RAX: 0000000000000016 RBX: ffffffff85a2b780 RCX: ffffffff86049ce8
[ 85.356986][ T0] RDX: 0000000000000000 RSI: ffffffff82506027 RDI: ffffffff85a56378
[ 85.364960][ T0] RBP: ffffffff85a03e18 R08: 0000000000000000 R09: 0000ffff85a56378
[ 85.373881][ T0] R10: 0000ffff855db74f R11: 0000ffff85a5637f R12: 0000000000000000
[ 85.382542][ T0] R13: ffffffff85a2b780 R14: 0000000000000000 R15: 0000000000000000
[ 85.390528][ T0] ? debug_smp_processor_id+0x47/0x172
[ 85.395989][ T0] ? default_idle+0x50/0x230
[ 85.400577][ T0] arch_cpu_idle+0x1f/0x30
[ 85.404988][ T0] default_idle_call+0x1e/0x40
[ 85.410178][ T0] do_idle+0x1af/0x280
[ 85.414247][ T0] cpu_startup_entry+0x1b/0x20
[ 85.420396][ T0] rest_init+0xec/0xf6
[ 85.424465][ T0] ? trace_event_define_fields_vector_free_moved+0xce/0xce
[ 85.431658][ T0] arch_call_rest_init+0x17/0x37
[ 85.436604][ T0] start_kernel+0x838/0x85e
[ 85.441104][ T0] x86_64_start_reservations+0x29/0x2b
[ 85.446559][ T0] x86_64_start_kernel+0x72/0x76
[ 85.452446][ T0] secondary_startup_64+0xa4/0xb0
[ 85.475017][ T0] Kernel Offset: disabled
[ 85.479526][ T0] Rebooting in 86400 seconds..