cgroup: Unknown subsys name 'perf_event'
cgroup: Unknown subsys name 'net_cls'
cgroup: Unknown subsys name 'perf_event'
cgroup: Unknown subsys name 'net_cls'
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4062 at kernel/kthread.c:83 to_kthread kernel/kthread.c:83 [inline]
WARNING: CPU: 0 PID: 4062 at kernel/kthread.c:83 kthread_is_per_cpu+0xc4/0xf0 kernel/kthread.c:519
Modules linked in:
CPU: 0 PID: 4062 Comm: syz-executor.3 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:ffff888039a2f558 EFLAGS: 00010012
RAX: 0000000000000a8b RBX: ffff88803a05b280 RCX: ffffc90009e22000
RDX: 0000000000040000 RSI: ffffffff811bf7f4 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88803a05b280
R10: 0000000000000000 R11: ffffffff85dd301b R12: ffff88803a05b328
R13: ffff888039a2f6e0 R14: ffff888039a2f6e0 R15: ffff88803a05b280
FS:  00007faf05d1e700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf05cfd718 CR3: 00000000220e6000 CR4: 0000000000350ef0
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
 freezable_schedule include/linux/freezer.h:172 [inline]
 futex_wait_queue_me+0x2a7/0x570 kernel/futex.c:2607
 futex_wait+0x1df/0x5d0 kernel/futex.c:2709
 do_futex+0xf86/0x1a50 kernel/futex.c:3735
 __do_sys_futex+0x2bb/0x480 kernel/futex.c:3798
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007faf05d1e218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000056c040 RCX: 0000000000466609
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056c040
RBP: 000000000056c038 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c044
R13: 00007ffdd1aae7cf R14: 00007faf05d1e300 R15: 0000000000022000
irq event stamp: 1658
hardirqs last  enabled at (1657): [<ffffffff83c45acd>] syscall_enter_from_user_mode+0x1d/0x50 kernel/entry/common.c:98
hardirqs last disabled at (1658): [<ffffffff83c4e9f2>] __schedule+0xfb2/0x1e80 kernel/sched/core.c:4425
softirqs last  enabled at (1630): [<ffffffff8358c270>] read_pnet include/net/net_namespace.h:337 [inline]
softirqs last  enabled at (1630): [<ffffffff8358c270>] sock_net include/net/sock.h:2550 [inline]
softirqs last  enabled at (1630): [<ffffffff8358c270>] unix_create1+0x470/0x540 net/unix/af_unix.c:815
softirqs last disabled at (1628): [<ffffffff8358c1b6>] init_waitqueue_func_entry include/linux/wait.h:93 [inline]
softirqs last disabled at (1628): [<ffffffff8358c1b6>] unix_create1+0x3b6/0x540 net/unix/af_unix.c:807
---[ end trace 726a1bf22f383263 ]---

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