EXT4-fs warning (device sda): verify_group_input:131: Cannot add at group 2097151 (only 16 groups) cgroup: Unknown subsys name 'perf_event' cgroup: Unknown subsys name 'net_cls' Bluetooth: hci3: command 0x0409 tx timeout ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at kernel/kthread.c:83 to_kthread kernel/kthread.c:83 [inline] WARNING: CPU: 0 PID: 0 at kernel/kthread.c:83 kthread_is_per_cpu+0xc4/0xf0 kernel/kthread.c:519 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.60 #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 c9 73 23 00 44 89 e0 5b 5d 41 5c c3 e8 bc 73 23 00 <0f> 0b eb 88 e8 93 63 4e 00 e9 68 ff ff ff e8 99 63 4e 00 eb 9a 48 RSP: 0018:ffff88806ce09c28 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff888043d49940 RCX: ffffffff811bea7c RDX: ffffffff84c32280 RSI: ffffffff811beaf4 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff85e1f00f R10: 0000000000000000 R11: ffffffff85e1f01b R12: ffff888043d499e8 R13: ffff88806ce09da8 R14: ffff88806ce09da8 R15: ffff888043d49940 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e6e9678d60 CR3: 000000000dfe2000 CR4: 0000000000350ef0 Call Trace: can_migrate_task+0x90/0xa00 kernel/sched/fair.c:7572 detach_tasks kernel/sched/fair.c:7720 [inline] load_balance+0x9de/0x27e0 kernel/sched/fair.c:9644 rebalance_domains+0x661/0xe10 kernel/sched/fair.c:10038 __do_softirq+0x1b6/0x86a kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:default_idle+0xe/0x10 arch/x86/kernel/process.c:689 Code: ff ff ff 4c 89 e7 e8 11 87 90 fd eb 93 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 e9 07 00 00 00 0f 00 2d b4 72 48 00 fb f4 cc 41 55 41 54 55 48 89 fd 53 e8 f2 96 65 fd 48 8b 1d 9b 64 07 RSP: 0018:ffffffff84c07e40 EFLAGS: 00000206 RAX: ffffffff83d9c7a0 RBX: ffffffff84c32280 RCX: ffffffff83d84988 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83d9cb5f RBP: fffffbfff0986450 R08: 0000000000000001 R09: ffff88806ce3406b R10: ffffed100d9c680d R11: 0000000000000001 R12: 0000000000000000 R13: ffffffff85472b08 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x87/0xd0 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x3a5/0x510 kernel/sched/idle.c:300 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396 start_kernel+0x475/0x496 init/main.c:1057 secondary_startup_64_no_verify+0xc2/0xcb irq event stamp: 2727897 hardirqs last enabled at (2727896): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (2727896): [] _raw_spin_unlock_irqrestore+0x34/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (2727897): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (2727897): [] _raw_spin_lock_irqsave+0x4b/0x50 kernel/locking/spinlock.c:159 softirqs last enabled at (2727892): [] irq_enter_rcu+0xbc/0xd0 kernel/softirq.c:360 softirqs last disabled at (2727893): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace e60a41863499534d ]--- ======================================================