sched: DL replenish lagged too much rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10/1:b..l rcu: (detected by 0, t=10502 jiffies, g=29701, q=937 ncpus=1) task:kworker/0:1 state:R running task stack:22120 pid:10 tgid:10 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: events_power_efficient gc_worker Call Trace: context_switch kernel/sched/core.c:5510 [inline] __schedule+0x125c/0x6730 kernel/sched/core.c:7234 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7556 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa00 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:228 [inline] RIP: 0010:nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:343 [inline] RIP: 0010:gc_worker+0x2bf/0x1a10 net/netfilter/nf_conntrack_core.c:1534 Code: 00 00 48 c7 c7 c8 a3 42 91 e8 6d 65 0b f8 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 cb c9 2f f8 58 48 85 db 0f 85 32 13 00 00 1c cf 2f f8 8b 1d 56 ff 67 07 89 dd 31 ff 83 e5 01 89 ee e8 78 RSP: 0018:ffffc900000f7b48 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff89dab231 RDX: ffff88801eed2540 RSI: ffffffff89dab240 RDI: ffff88801eed2540 RBP: ffff888024c00000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000040000 R15: 0000000000001ba9 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245