Warning: Permanently added '10.128.0.206' (ECDSA) to the list of known hosts. 2019/11/19 08:44:04 fuzzer started 2019/11/19 08:44:06 dialing manager at 10.128.0.105:42849 2019/11/19 08:44:06 checking machine... 2019/11/19 08:44:06 checking revisions... 2019/11/19 08:44:06 testing simple program... syzkaller login: [ 54.019118][ T7560] IPVS: ftp: loaded support on port[0] = 21 2019/11/19 08:44:06 building call list... executing program [ 56.986674][ T7541] can: request_module (can-proto-0) failed. [ 56.997868][ T7541] can: request_module (can-proto-0) failed. [ 57.008990][ T7541] can: request_module (can-proto-0) failed. [ 60.349213][ T0] ================================================================== [ 60.357335][ T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_idle_stop_tick [ 60.366240][ T0] [ 60.368590][ T0] write to 0xffffffff85cb3ad0 of 4 bytes by task 0 on cpu 0: [ 60.375943][ T0] tick_nohz_idle_stop_tick+0x525/0x670 [ 60.381465][ T0] do_idle+0x1a5/0x280 [ 60.385513][ T0] cpu_startup_entry+0x1b/0x20 [ 60.390254][ T0] rest_init+0xec/0xf6 [ 60.394329][ T0] arch_call_rest_init+0x17/0x37 [ 60.399259][ T0] start_kernel+0x838/0x85e [ 60.403750][ T0] x86_64_start_reservations+0x29/0x2b [ 60.409195][ T0] x86_64_start_kernel+0x72/0x76 [ 60.414134][ T0] secondary_startup_64+0xa4/0xb0 [ 60.419128][ T0] [ 60.421457][ T0] read to 0xffffffff85cb3ad0 of 4 bytes by task 0 on cpu 1: [ 60.428719][ T0] tick_nohz_idle_stop_tick+0x193/0x670 [ 60.434242][ T0] do_idle+0x1a5/0x280 [ 60.438298][ T0] cpu_startup_entry+0x1b/0x20 [ 60.443042][ T0] start_secondary+0x168/0x1b0 [ 60.447783][ T0] secondary_startup_64+0xa4/0xb0 [ 60.452774][ T0] [ 60.455076][ T0] Reported by Kernel Concurrency Sanitizer on: [ 60.461209][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc7+ #0 [ 60.468301][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.478334][ T0] ================================================================== [ 60.486371][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 60.492935][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc7+ #0 [ 60.500015][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.510044][ T0] Call Trace: [ 60.513321][ T0] dump_stack+0x11d/0x181 [ 60.517633][ T0] panic+0x210/0x640 [ 60.521522][ T0] ? vprintk_func+0x8d/0x140 [ 60.526107][ T0] kcsan_report.cold+0xc/0xd [ 60.530691][ T0] kcsan_setup_watchpoint+0x3fe/0x460 [ 60.536043][ T0] __tsan_read4+0xc6/0x100 [ 60.540451][ T0] tick_nohz_idle_stop_tick+0x193/0x670 [ 60.545987][ T0] ? debug_smp_processor_id+0x4c/0x172 [ 60.551428][ T0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.557663][ T0] do_idle+0x1a5/0x280 [ 60.561721][ T0] ? complete+0x44/0x50 [ 60.565860][ T0] cpu_startup_entry+0x1b/0x20 [ 60.570604][ T0] start_secondary+0x168/0x1b0 [ 60.575354][ T0] secondary_startup_64+0xa4/0xb0 [ 60.581661][ T0] Kernel Offset: disabled [ 60.586009][ T0] Rebooting in 86400 seconds..