Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.114' (ECDSA) to the list of known hosts.
2020/06/14 11:59:29 fuzzer started
2020/06/14 11:59:29 dialing manager at 10.128.0.105:36539
2020/06/14 11:59:33 syscalls: 3085
2020/06/14 11:59:33 code coverage: enabled
2020/06/14 11:59:33 comparison tracing: enabled
2020/06/14 11:59:33 extra coverage: enabled
2020/06/14 11:59:33 setuid sandbox: enabled
2020/06/14 11:59:33 namespace sandbox: enabled
2020/06/14 11:59:33 Android sandbox: /sys/fs/selinux/policy does not exist
2020/06/14 11:59:33 fault injection: enabled
2020/06/14 11:59:33 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/06/14 11:59:33 net packet injection: enabled
2020/06/14 11:59:33 net device setup: enabled
2020/06/14 11:59:33 concurrency sanitizer: enabled
2020/06/14 11:59:33 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/06/14 11:59:33 USB emulation: enabled
syzkaller login: [ 55.624579][ T8932] KCSAN: could not find function: '_find_next_bit'
2020/06/14 11:59:35 adding functions to KCSAN blacklist: '_find_next_bit' 'futex_wait_queue_me' 'kauditd_thread' 'ptrace_check_attach' 'do_signal_stop' 'pcpu_alloc' '__filemap_fdatawrite_range' '__send_signal' 'ep_poll' 'page_counter_charge' '__ext4_new_inode' 'generic_file_read_iter' 'file_update_time' 'find_get_pages_range_tag' 'ext4_mb_good_group' 'ext4_mark_iloc_dirty' 'copy_process' 'generic_write_end' 'do_nanosleep'
[ 85.036150][ C1] ==================================================================
[ 85.044925][ C1] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer
[ 85.052976][ C1]
[ 85.055304][ C1] write to 0xffffffff8764e210 of 4 bytes by interrupt on cpu 0:
[ 85.063236][ C1] tick_sched_do_timer+0xb4/0xd0
[ 85.068182][ C1] tick_sched_timer+0x3f/0xd0
[ 85.072944][ C1] __hrtimer_run_queues+0x271/0x600
[ 85.078142][ C1] hrtimer_interrupt+0x226/0x490
[ 85.083077][ C1] smp_apic_timer_interrupt+0xd8/0x270
[ 85.088622][ C1] apic_timer_interrupt+0xf/0x20
[ 85.093633][ C1]
[ 85.095958][ C1] read to 0xffffffff8764e210 of 4 bytes by interrupt on cpu 1:
[ 85.103503][ C1] tick_sched_do_timer+0x2e/0xd0
[ 85.108530][ C1] tick_sched_timer+0x3f/0xd0
[ 85.113289][ C1] __hrtimer_run_queues+0x271/0x600
[ 85.118497][ C1] hrtimer_interrupt+0x226/0x490
[ 85.123903][ C1] smp_apic_timer_interrupt+0xd8/0x270
[ 85.129462][ C1] apic_timer_interrupt+0xf/0x20
[ 85.134573][ C1] native_safe_halt+0xe/0x10
[ 85.139269][ C1] default_idle+0x21/0x170
[ 85.143665][ C1] do_idle+0x1b7/0x290
[ 85.148236][ C1] cpu_startup_entry+0x14/0x20
[ 85.153018][ C1] start_secondary+0x169/0x1b0
[ 85.157810][ C1] secondary_startup_64+0xa4/0xb0
[ 85.162806][ C1]
[ 85.165119][ C1] Reported by Kernel Concurrency Sanitizer on:
[ 85.171267][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[ 85.179127][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 85.189163][ C1] ==================================================================
[ 85.197210][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 85.203777][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[ 85.211637][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 85.221770][ C1] Call Trace:
[ 85.225026][ C1]
[ 85.227860][ C1] dump_stack+0x11d/0x187
[ 85.232177][ C1] panic+0x210/0x640
[ 85.236060][ C1] ? vprintk_func+0x89/0x13a
[ 85.240656][ C1] kcsan_report.cold+0xc/0x1a
[ 85.245363][ C1] kcsan_setup_watchpoint+0x3fb/0x440
[ 85.250726][ C1] tick_sched_do_timer+0x2e/0xd0
[ 85.255655][ C1] tick_sched_timer+0x3f/0xd0
[ 85.260327][ C1] __hrtimer_run_queues+0x271/0x600
[ 85.265504][ C1] ? tick_sched_do_timer+0xd0/0xd0
[ 85.270598][ C1] hrtimer_interrupt+0x226/0x490
[ 85.275516][ C1] ? kvm_clock_read+0x14/0x30
[ 85.280175][ C1] smp_apic_timer_interrupt+0xd8/0x270
[ 85.285634][ C1] apic_timer_interrupt+0xf/0x20
[ 85.290541][ C1]
[ 85.293467][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 85.298815][ C1] 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
[ 85.318449][ C1] RSP: 0018:ffffc90000cd3eb0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 85.326944][ C1] RAX: 0000000000000001 RBX: ffff88812b797040 RCX: ffffffff8285fdf1
[ 85.334891][ C1] RDX: 0000000000000000 RSI: ffffffff8285fdfa RDI: 0000000000000005
[ 85.342957][ C1] RBP: 0000000000000001 R08: ffff88812b797040 R09: 0000ffff87047928
[ 85.350924][ C1] R10: 0000c90000cd3e98 R11: 0000ffff8704792f R12: ffff88812b797040
[ 85.358885][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88812b797040
[ 85.366844][ C1] ? debug_smp_processor_id+0x31/0x129
[ 85.372283][ C1] ? debug_smp_processor_id+0x3a/0x129
[ 85.377719][ C1] default_idle+0x21/0x170
[ 85.382112][ C1] do_idle+0x1b7/0x290
[ 85.386165][ C1] ? do_idle+0xe0/0x290
[ 85.390310][ C1] cpu_startup_entry+0x14/0x20
[ 85.395145][ C1] start_secondary+0x169/0x1b0
[ 85.399891][ C1] secondary_startup_64+0xa4/0xb0
[ 85.406385][ C1] Kernel Offset: disabled
[ 85.410714][ C1] Rebooting in 86400 seconds..