rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=badc/1/0x4000000000000000 softirq=123138/123138 fqs=5241
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     8065          0            0
rcu: 	cputime:      165      52334            5   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=171441 q=4728 ncpus=2)
CPU: 1 UID: 0 PID: 5630 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:lock_acquire+0x221/0x350 kernel/locking/lockdep.c:5872
Code: ff ff ff e8 f1 7c 2e 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 db 87 ca 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 ab 78 6d ff cc 48 8d 3d c8 64 b8
RSP: 0018:ffffc90000a08d80 EFLAGS: 00000282
RAX: 8b2eb4186c6f7100 RBX: 0000000000000000 RCX: 0000000000000101
RDX: 0000000039332089 RSI: ffffffff8e4b425c RDI: ffffffff8c4bdd80
RBP: ffffffff89cf9a4b R08: ffffffff89cf9a4b R09: 0000000000000000
R10: 0000000000000000 R11: ffff88807ba4a498 R12: 0000000000000000
R13: ffff88807ba4a498 R14: 0000000000000001 R15: 0000000000000246
FS:  00005555799e1500(0000) GS:ffff88812504b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555572b9c4e8 CR3: 00000000591a7000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 __raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:158
 spin_lock include/linux/spinlock.h:342 [inline]
 gate_timer_func+0x2b/0x450 net/sched/act_gate.c:79
 __run_hrtimer kernel/time/hrtimer.c:2032 [inline]
 __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2096
 hrtimer_run_softirq+0x17a/0x240 kernel/time/hrtimer.c:2113
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 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:lock_release+0x2d7/0x3c0 kernel/locking/lockdep.c:5893
Code: 9b ca 11 00 00 00 00 eb b5 e8 55 4b 2e 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 45 56 ca 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 15 47 6d ff cc 48 8d 3d a2 36 b8
RSP: 0018:ffffc90003a2f908 EFLAGS: 00000282
RAX: 8b2eb4186c6f7100 RBX: 0000000000000206 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e4b425c RDI: ffffffff8c4bdd80
RBP: ffff888035eb68a0 R08: ffffffff823dea45 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb59c60 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8eb59c60 R15: ffff888035eb5d00
 rcu_lock_release include/linux/rcupdate.h:310 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 get_mem_cgroup_from_objcg include/linux/memcontrol.h:493 [inline]
 obj_cgroup_charge_pages mm/memcontrol.c:3095 [inline]
 __memcg_kmem_charge_page+0x303/0x510 mm/memcontrol.c:3141
 memcg_kmem_charge_page include/linux/memcontrol.h:1771 [inline]
 memcg_charge_kernel_stack+0x94/0x4e0 kernel/fork.c:321
 alloc_thread_stack_node kernel/fork.c:340 [inline]
 dup_task_struct+0x1ca/0x8e0 kernel/fork.c:929
 copy_process+0x820/0x4390 kernel/fork.c:2115
 kernel_clone+0x2d7/0x940 kernel/fork.c:2748
 __do_sys_clone kernel/fork.c:2889 [inline]
 __se_sys_clone kernel/fork.c:2873 [inline]
 __x64_sys_clone+0x1b6/0x230 kernel/fork.c:2873
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f06dc3c6b52
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007fffdf3f3140 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fffdf3f3140 RCX: 00007f06dc3c6b52
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fffdf3f32cc R08: 0000000000000000 R09: 0000000000000001
R10: 00005555799e17d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 00000000000dcf70 R15: 00007fffdf3f3320
 </TASK>
sched: DL replenish lagged too much