------------[ cut here ]------------
percpu ref (css_release) <= 0 (-1) after switching to atomic
WARNING: lib/percpu-refcount.c:197 at percpu_ref_switch_to_atomic_rcu+0x3cc/0x480, CPU#1: systemd/1
Modules linked in:
CPU: 1 UID: 0 PID: 1 Comm: systemd Tainted: G        W           6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x3cc/0x480
Code: 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 9e 00 00 00 49 8b 75 e8 48 c7 c7 80 97 e2 84 e8 75 c5 e9 fe 90 <0f> 0b 90 90 e9 2b ff ff ff e8 f6 de 5f ff e9 9e fe ff ff e8 7c df
RSP: 0018:ffff88806cf08e20 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8139de70
RDX: ffff8880094f8000 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: 7fffffffffffffff R08: 0000000000000001 R09: ffffed100d9e4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800d61f480
R13: ffff88800d61f4a0 R14: 0000000000000002 R15: 0000000000000003
FS:  00007f9bbe908900(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd3923000 CR3: 000000000cb88000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 rcu_core+0x7c8/0x1800
 handle_softirqs+0x1b1/0x770
 __irq_exit_rcu+0xc4/0x100
 irq_exit_rcu+0x9/0x20
 sysvec_apic_timer_interrupt+0x70/0x80
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__orc_find+0x6f/0xf0
Code: 77 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01
RSP: 0018:ffff888009547668 EFLAGS: 00000213
RAX: 1ffffffff0c98acd RBX: ffffffff864c566c RCX: ffffffff81608b3d
RDX: 0000000000000000 RSI: ffffffff8682a686 RDI: ffffffff864c566c
RBP: ffffffff864c566c R08: ffffffff8682a686 R09: 0000000000000000
R10: 000000000003be53 R11: 0000000000012bb3 R12: ffffffff864c566c
R13: ffffffff864c566c R14: ffffffff864c566c R15: dffffc0000000000
 unwind_next_frame+0x2f9/0x2540
 arch_stack_walk+0x86/0xf0
 stack_trace_save+0x8e/0xc0
 kasan_save_stack+0x24/0x50
 kasan_record_aux_stack+0x89/0xa0
 __call_rcu_common.constprop.0+0x70/0x960
 kmem_cache_free+0x33a/0x540
 skb_release_data+0x88d/0xa40
 consume_skb+0xd0/0x160
 netlink_recvmsg+0x532/0x9e0
 sock_recvmsg+0x1e1/0x240
 __sys_recvfrom+0x1f9/0x310
 __x64_sys_recvfrom+0xe1/0x1c0
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9bbf0e60fa
Code: e8 ab 5c f8 ff 4c 8b 4c 24 28 4c 8b 44 24 20 89 c5 44 8b 54 24 1c 8b 3c 24 b8 2d 00 00 00 48 8b 54 24 10 48 8b 74 24 08 0f 05 <48> 3d 00 f0 ff ff 77 36 89 ef 48 89 04 24 e8 d3 5c f8 ff 48 8b 04
RSP: 002b:00007ffcd3922730 EFLAGS: 00000293 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 00007f9bbf0e60fa
RDX: 000000000000231c RSI: 00007ffcd3924b40 RDI: 0000000000000027
RBP: 0000000000000000 R08: 00007ffcd392278c R09: 00007ffcd3922788
R10: 0000000000000040 R11: 0000000000000293 R12: 00007ffcd3924b40
R13: 00007ffcd3922788 R14: 00007ffcd392278c R15: 00007ffcd3924b30
 </TASK>
irq event stamp: 5986970
hardirqs last  enabled at (5986980): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (5986989): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (5985734): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (5986069): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
percpu_ref_switch_to_atomic_rcu: percpu_ref_switch_to_atomic_rcu(): percpu_ref underflow slab kmalloc-64 start ffff88800d61f480 pointer offset 0 size 64
percpu_ref_switch_to_atomic_rcu: percpu_ref_switch_to_atomic_rcu(): percpu_ref underflow slab kmalloc-64 start ffff88800ba86400 pointer offset 0 size 64
----------------
Code disassembly (best guess):
   0:	77 4d                	ja     0x4f
   2:	4c 89 e0             	mov    %r12,%rax
   5:	48 29 e8             	sub    %rbp,%rax
   8:	48 89 c2             	mov    %rax,%rdx
   b:	48 c1 e8 3f          	shr    $0x3f,%rax
   f:	48 c1 fa 02          	sar    $0x2,%rdx
  13:	48 01 d0             	add    %rdx,%rax
  16:	48 d1 f8             	sar    %rax
  19:	48 8d 5c 85 00       	lea    0x0(%rbp,%rax,4),%rbx
  1e:	48 89 d8             	mov    %rbx,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
  25:	42 0f b6 14 38       	movzbl (%rax,%r15,1),%edx
* 2a:	48 89 d8             	mov    %rbx,%rax <-- trapping instruction
  2d:	83 e0 07             	and    $0x7,%eax
  30:	83 c0 03             	add    $0x3,%eax
  33:	38 d0                	cmp    %dl,%al
  35:	7c 04                	jl     0x3b
  37:	84 d2                	test   %dl,%dl
  39:	75 50                	jne    0x8b
  3b:	48 63 03             	movslq (%rbx),%rax
  3e:	48                   	rex.W
  3f:	01                   	.byte 0x1