INFO: rcu_sched self-detected stall on CPU 1-....: (124999 ticks this GP) idle=4de/1/4611686018427387906 softirq=21160/21160 fqs=31228 (t=125000 jiffies g=6772 c=6771 q=1224) NMI backtrace for cpu 1 CPU: 1 PID: 5894 Comm: syz-executor6 Not tainted 4.16.0-rc7+ #281 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x24d lib/dump_stack.c:53 nmi_cpu_backtrace+0x1d2/0x210 lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x123/0x180 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+0x186/0x1de kernel/rcu/tree.c:1375 print_cpu_stall kernel/rcu/tree.c:1524 [inline] check_cpu_stall.isra.61+0xbb8/0x15b0 kernel/rcu/tree.c:1592 __rcu_pending kernel/rcu/tree.c:3361 [inline] rcu_pending kernel/rcu/tree.c:3423 [inline] rcu_check_callbacks+0x238/0xd20 kernel/rcu/tree.c:2763 update_process_times+0x30/0x60 kernel/time/timer.c:1636 tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:162 tick_sched_timer+0x42/0x120 kernel/time/tick-sched.c:1194 __run_hrtimer kernel/time/hrtimer.c:1349 [inline] __hrtimer_run_queues+0x39c/0xec0 kernel/time/hrtimer.c:1411 hrtimer_interrupt+0x2a5/0x6f0 kernel/time/hrtimer.c:1469 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x14a/0x700 arch/x86/kernel/apic/apic.c:1050 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:857 RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:94 RSP: 0018:ffff8801cd99f678 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff12 RAX: ffff8801ad802500 RBX: 0000000000000001 RCX: ffffffff82af9e3d RDX: 0000000000010000 RSI: ffffc90003801000 RDI: ffff8801cd66a6a8 RBP: ffff8801cd99f678 R08: ffffed0039acd4d6 R09: ffff8801cd66a6a8 R10: 0000000000000001 R11: ffffed0039acd4d5 R12: 0000000000000025 R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 __bitmap_parselist+0x2f5/0x4b0 lib/bitmap.c:615 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+0x2f7/0x2850 kernel/cgroup/cpuset.c:1727 cgroup_file_write+0x2ae/0x710 kernel/cgroup/cgroup.c:3429 kernfs_fop_write+0x2bc/0x440 fs/kernfs/file.c:316 __vfs_write+0xef/0x970 fs/read_write.c:480 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7ff3c99 RSP: 002b:00000000f77ef09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 0000000020000080 RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000