Warning: Permanently added '10.128.0.234' (ECDSA) to the list of known hosts.
2020/04/29 10:03:26 fuzzer started
2020/04/29 10:03:28 dialing manager at 10.128.0.105:32823
syzkaller login: [   46.281176][ T6694] ld (6694) used greatest stack depth: 10440 bytes left
2020/04/29 10:03:32 syscalls: 2960
2020/04/29 10:03:32 code coverage: enabled
2020/04/29 10:03:32 comparison tracing: enabled
2020/04/29 10:03:32 extra coverage: enabled
2020/04/29 10:03:32 setuid sandbox: enabled
2020/04/29 10:03:32 namespace sandbox: enabled
2020/04/29 10:03:32 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/29 10:03:32 fault injection: enabled
2020/04/29 10:03:32 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/29 10:03:32 net packet injection: enabled
2020/04/29 10:03:32 net device setup: enabled
2020/04/29 10:03:32 concurrency sanitizer: enabled
2020/04/29 10:03:32 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/04/29 10:03:32 USB emulation: /dev/raw-gadget does not exist
[   51.267894][ T6700] KCSAN: could not find function: '_find_next_bit'
2020/04/29 10:03:33 adding functions to KCSAN blacklist: 'copy_process' 'find_get_pages_range_tag' 'do_exit' 'generic_fillattr' 'xas_clear_mark' 'futex_wait_queue_me' '__x64_sys_ptrace' 'run_timer_softirq' 'page_counter_charge' 'ext4_mark_iloc_dirty' 'mod_timer' 'ext4_free_inodes_count' 'ep_poll' '_find_next_bit' '__ext4_new_inode' 'blk_mq_get_request' 'generic_write_end' 
[   97.579913][    T0] ==================================================================
[   97.588221][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_sched_do_timer
[   97.596732][    T0] 
[   97.599057][    T0] write to 0xffffffff85f0ef50 of 4 bytes by interrupt on cpu 0:
[   97.607727][    T0]  tick_sched_do_timer+0xb4/0xd0
[   97.612698][    T0]  tick_sched_timer+0x3f/0xd0
[   97.617371][    T0]  __hrtimer_run_queues+0x271/0x600
[   97.622565][    T0]  hrtimer_interrupt+0x226/0x490
[   97.627526][    T0]  smp_apic_timer_interrupt+0xd8/0x270
[   97.632979][    T0]  apic_timer_interrupt+0xf/0x20
[   97.637893][    T0] 
[   97.640234][    T0] read to 0xffffffff85f0ef50 of 4 bytes by task 0 on cpu 1:
[   97.647519][    T0]  tick_nohz_idle_stop_tick+0x191/0x680
[   97.653072][    T0]  do_idle+0x1ad/0x290
[   97.657162][    T0]  cpu_startup_entry+0x14/0x20
[   97.661922][    T0]  start_secondary+0x169/0x1b0
[   97.666705][    T0]  secondary_startup_64+0xa4/0xb0
[   97.671724][    T0] 
[   97.674053][    T0] Reported by Kernel Concurrency Sanitizer on:
[   97.680307][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[   97.688180][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   97.700550][    T0] ==================================================================
[   97.708738][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   97.715336][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[   97.723208][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   97.733523][    T0] Call Trace:
[   97.736824][    T0]  dump_stack+0x11d/0x187
[   97.741157][    T0]  panic+0x210/0x640
[   97.745054][    T0]  ? vprintk_func+0x89/0x13a
[   97.749656][    T0]  kcsan_report.cold+0xc/0x1a
[   97.754337][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[   97.760237][    T0]  tick_nohz_idle_stop_tick+0x191/0x680
[   97.765803][    T0]  do_idle+0x1ad/0x290
[   97.769904][    T0]  ? debug_smp_processor_id+0x3a/0x129
[   97.775365][    T0]  cpu_startup_entry+0x14/0x20
[   97.780140][    T0]  start_secondary+0x169/0x1b0
[   97.784925][    T0]  secondary_startup_64+0xa4/0xb0
[   97.791263][    T0] Kernel Offset: disabled
[   97.795693][    T0] Rebooting in 86400 seconds..