sched: DL replenish lagged too much
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10545 jiffies, g=20437, q=1964 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 9846 (4294971052-4294961206), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 9846 jiffies! g20437 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28488 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5504 [inline]
 __schedule+0x17d9/0x56c0 kernel/sched/core.c:7228
 __schedule_loop kernel/sched/core.c:7307 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7322
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2123
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2325
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: events_power_efficient gc_worker
RIP: 0010:pool_should_refill lib/debugobjects.c:144 [inline]
RIP: 0010:debug_objects_fill_pool lib/debugobjects.c:763 [inline]
RIP: 0010:debug_object_activate+0x60/0x410 lib/debugobjects.c:869
Code: 74 fd 48 c7 44 24 28 05 00 00 00 48 89 5c 24 30 4c 89 74 24 38 80 3d 36 bf 74 0b 00 0f 85 87 02 00 00 66 90 8b 05 e8 87 55 0a <3b> 05 e6 87 55 0a 0f 82 cb 02 00 00 4c 89 74 24 10 49 be 00 00 00
RSP: 0018:ffffc90000007d20 EFLAGS: 00000046
RAX: 0000000000000120 RBX: ffff88801b38a300 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000007d48
RBP: 0000000000000000 R08: ffffc90000007d47 R09: 0000000000000000
R10: ffffc90000007d38 R11: fffff52000000fa9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8bcf6d20 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88812527c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055af22245f28 CR3: 000000007c620000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 debug_hrtimer_activate kernel/time/hrtimer.c:485 [inline]
 debug_activate kernel/time/hrtimer.c:528 [inline]
 enqueue_hrtimer+0xa9/0x2c0 kernel/time/hrtimer.c:1109
 __run_hrtimer kernel/time/hrtimer.c:2048 [inline]
 __hrtimer_run_queues+0x4ce/0xa10 kernel/time/hrtimer.c:2096
 hrtimer_interrupt+0x448/0x910 kernel/time/hrtimer.c:2215
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:seqcount_lockdep_reader_access+0xed/0x100 include/linux/seqlock.h:76
Code: 00 75 11 e8 95 fd fc f7 4d 85 f6 75 16 e8 8b fd fc f7 eb 15 e8 84 fd fc f7 e8 6f cc de 01 4d 85 f6 74 ea e8 75 fd fc f7 fb 5b <41> 5e c3 cc cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90
RSP: 0018:ffffc900000e7990 EFLAGS: 00000293
RAX: ffffffff89c8f8ab RBX: 0000000000000000 RCX: ffff88801daa5d00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000e7af0 R08: ffffffff903116f7 R09: 1ffffffff20622de
R10: dffffc0000000000 R11: fffffbfff20622df R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000200 R15: 000000000002790c
 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:343 [inline]
 gc_worker+0x304/0x12b0 net/netfilter/nf_conntrack_core.c:1509
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3397
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3478
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>