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================================================================== BUG: KCSAN: data-race in tick_nohz_stop_tick / tick_nohz_stop_tick write to 0xffffffff87f50690 of 4 bytes by task 0 on cpu 0: tick_nohz_stop_tick+0xa0/0x440 kernel/time/tick-sched.c:781 __tick_nohz_idle_stop_tick kernel/time/tick-sched.c:973 [inline] tick_nohz_idle_stop_tick+0xf2/0x1c0 kernel/time/tick-sched.c:994 cpuidle_idle_call kernel/sched/idle.c:201 [inline] do_idle+0x1ac/0x320 kernel/sched/idle.c:269 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:365 rest_init+0xd8/0xe0 init/main.c:705 arch_call_rest_init+0xa/0xb start_kernel+0x608/0x6d0 init/main.c:1043 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 read to 0xffffffff87f50690 of 4 bytes by task 0 on cpu 1: tick_nohz_stop_tick+0x7a/0x440 kernel/time/tick-sched.c:780 __tick_nohz_idle_stop_tick kernel/time/tick-sched.c:973 [inline] tick_nohz_idle_stop_tick+0xf2/0x1c0 kernel/time/tick-sched.c:994 cpuidle_idle_call kernel/sched/idle.c:201 [inline] do_idle+0x1ac/0x320 kernel/sched/idle.c:269 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:365 start_secondary+0xe3/0x110 arch/x86/kernel/smpboot.c:268 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/06/19 20:50 | upstream | 672f9255a727 | 123cf502 | .config | console log | report | ci2-upstream-kcsan-gce |