INFO: rcu_sched self-detected stall on CPU 1-....: (124998 ticks this GP) idle=14e/1/4611686018427387906 softirq=112009/112009 fqs=31232 (t=125000 jiffies g=61489 c=61488 q=1602) NMI backtrace for cpu 1 CPU: 1 PID: 25769 Comm: syz-executor3 Not tainted 4.16.0+ #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:156 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1376 print_cpu_stall kernel/rcu/tree.c:1525 [inline] check_cpu_stall.isra.61.cold.80+0x36c/0x59a kernel/rcu/tree.c:1593 __rcu_pending kernel/rcu/tree.c:3356 [inline] rcu_pending kernel/rcu/tree.c:3401 [inline] rcu_check_callbacks+0x21b/0xad0 kernel/rcu/tree.c:2763 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0xa0/0x180 kernel/time/tick-sched.c:171 tick_sched_timer+0x42/0x130 kernel/time/tick-sched.c:1179 __run_hrtimer kernel/time/hrtimer.c:1337 [inline] __hrtimer_run_queues+0x3e3/0x10a0 kernel/time/hrtimer.c:1399 hrtimer_interrupt+0x286/0x650 kernel/time/hrtimer.c:1457 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x15d/0x710 arch/x86/kernel/apic/apic.c:1050 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:862 RIP: 0010:write_comp_data+0x6d/0x70 kernel/kcov.c:146 RSP: 0018:ffff8801c8a8f690 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000002 RBX: 0000000000000007 RCX: ffffffff832f0715 RDX: 0000000000000007 RSI: 0000000000000007 RDI: 0000000000000004 RBP: ffff8801c8a8f698 R08: ffff8801d47c2480 R09: ffff8801c8909670 R10: ffffed00391212ce R11: ffff8801c8909677 R12: 0000000000000007 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 __bitmap_parselist+0x4f5/0x5d0 lib/bitmap.c:614 bitmap_parselist+0x3a/0x50 lib/bitmap.c:628 __nodelist_parse include/linux/nodemask.h:342 [inline] update_nodemask kernel/cgroup/cpuset.c:1228 [inline] cpuset_write_resmask+0x123b/0x2e80 kernel/cgroup/cpuset.c:1727 cgroup_file_write+0x317/0x820 kernel/cgroup/cgroup.c:3429 kernfs_fop_write+0x2ba/0x480 fs/kernfs/file.c:316 __vfs_write+0x10b/0x880 fs/read_write.c:485 vfs_write+0x1f8/0x560 fs/read_write.c:549 ksys_write+0xf9/0x250 fs/read_write.c:598 SYSC_write fs/read_write.c:610 [inline] SyS_write+0x24/0x30 fs/read_write.c:607 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x455259 RSP: 002b:00007f9c1ec78c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9c1ec796d4 RCX: 0000000000455259 RDX: 0000000000000003 RSI: 00000000200000c0 RDI: 0000000000000014 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000006bc R14: 00000000006fd240 R15: 0000000000000000