cgroup: Unknown subsys name 'perf_event'
cgroup: Unknown subsys name 'net_cls'
------------[ cut here ]------------
WARNING: CPU: 1 PID: 16 at kernel/kthread.c:83 to_kthread kernel/kthread.c:83 [inline]
WARNING: CPU: 1 PID: 16 at kernel/kthread.c:83 kthread_is_per_cpu+0xc4/0xf0 kernel/kthread.c:519
Modules linked in:
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:to_kthread kernel/kthread.c:83 [inline]
RIP: 0010:kthread_is_per_cpu+0xc4/0xf0 kernel/kthread.c:519
Code: 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 2e 4c 8b 23 41 83 e4 01 e8 69 8e 23 00 44 89 e0 5b 5d 41 5c c3 e8 5c 8e 23 00 <0f> 0b eb 88 e8 f3 bf 4e 00 e9 68 ff ff ff e8 f9 bf 4e 00 eb 9a 48
RSP: 0018:ffff88800859f9c0 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffff88803f9b9940 RCX: ffffffff811bf77c
RDX: ffff888008589940 RSI: ffffffff811bf7f4 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88803f9b9940
R10: 0000000000000000 R11: ffffffff85dd305b R12: ffff88803f9b99e8
R13: ffff88800859fb48 R14: ffff88800859fb48 R15: ffff88803f9b9940
FS:  0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcafdfbaa0 CR3: 00000000361a2000 CR4: 0000000000350ee0
Call Trace:
 can_migrate_task+0x90/0xa00 kernel/sched/fair.c:7572
 detach_tasks kernel/sched/fair.c:7720 [inline]
 load_balance+0xa0e/0x2990 kernel/sched/fair.c:9644
 newidle_balance+0x6b9/0xee0 kernel/sched/fair.c:10616
 pick_next_task_fair+0x48/0xb10 kernel/sched/fair.c:7159
 pick_next_task kernel/sched/core.c:4342 [inline]
 __schedule+0x330/0x1e80 kernel/sched/core.c:4493
 schedule+0xcb/0x270 kernel/sched/core.c:4603
 smpboot_thread_fn+0x594/0x860 kernel/smpboot.c:160
 kthread+0x38f/0x470 kernel/kthread.c:292
 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:296
irq event stamp: 2142154
hardirqs last  enabled at (2142153): [<ffffffff81154546>] run_ksoftirqd kernel/softirq.c:654 [inline]
hardirqs last  enabled at (2142153): [<ffffffff81154546>] run_ksoftirqd+0x26/0x50 kernel/softirq.c:645
hardirqs last disabled at (2142154): [<ffffffff83c4e9f2>] __schedule+0xfb2/0x1e80 kernel/sched/core.c:4425
softirqs last  enabled at (2142152): [<ffffffff81154541>] run_ksoftirqd kernel/softirq.c:653 [inline]
softirqs last  enabled at (2142152): [<ffffffff81154541>] run_ksoftirqd+0x21/0x50 kernel/softirq.c:645
softirqs last disabled at (2142091): [<ffffffff81154541>] run_ksoftirqd kernel/softirq.c:653 [inline]
softirqs last disabled at (2142091): [<ffffffff81154541>] run_ksoftirqd+0x21/0x50 kernel/softirq.c:645
---[ end trace 122eb8d700fdc843 ]---

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