------------[ cut here ]------------
percpu ref (free_ioctx_reqs) <= 0 (0) after switching to atomic
WARNING: lib/percpu-refcount.c:197 at percpu_ref_switch_to_atomic_rcu+0x3cc/0x480, CPU#0: modprobe/5921
Modules linked in:
CPU: 0 UID: 0 PID: 5921 Comm: modprobe Tainted: G        W           6.17.0-rc4-next-20250901 #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 c0 99 e2 84 e8 25 ac e9 fe 90 <0f> 0b 90 90 e9 2b ff ff ff e8 56 de 5f ff e9 9e fe ff ff e8 dc de
RSP: 0018:ffff88806ce08e20 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8139de70
RDX: ffff88803e60b700 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: 8000000000000000 R08: 0000000000000001 R09: ffffed100d9c4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800e9eab00
R13: ffff88800e9eab20 R14: 0000000000000002 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbf3c4f6000 CR3: 000000001e061000 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:atime_needs_update+0x39/0x710
Code: 89 fd 41 54 53 48 89 f3 48 83 ec 10 e8 10 0b b6 ff 48 8d 7b 0c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 77 05 00 00 44
RSP: 0018:ffff88803e0c7480 EFLAGS: 00000213
RAX: dffffc0000000000 RBX: ffff888014350c10 RCX: ffffffff81e4f302
RDX: 0000000000000000 RSI: ffffffff81bdeba0 RDI: ffff888014350c1c
RBP: ffff88803e0c74b8 R08: 0000000000000000 R09: ffffed100199fc70
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff8880160b7740 R14: ffff88800ccfe000 R15: ffff88800ccfc618
 touch_atime+0x8a/0x590
 ext4_file_mmap_prepare+0x31c/0x3d0
 __mmap_region+0x1921/0x2670
 mmap_region+0x194/0x3e0
 do_mmap+0xa36/0x11d0
 vm_mmap_pgoff+0x1fc/0x390
 vm_mmap+0x99/0xc0
 elf_load+0x192/0x730
 load_elf_binary+0xdb0/0x4f70
 bprm_execve+0x8d9/0x15a0
 kernel_execve+0x2ff/0x3d0
 call_usermodehelper_exec_async+0x25f/0x4e0
 ret_from_fork+0x34b/0x430
 ret_from_fork_asm+0x1a/0x30
 </TASK>
irq event stamp: 1212
hardirqs last  enabled at (1222): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1231): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (196): [<ffffffff812ca386>] fpu_flush_thread+0x136/0x1c0
softirqs last disabled at (305): [<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 ffff88800e9eab00 pointer offset 0 size 64
----------------
Code disassembly (best guess):
   0:	89 fd                	mov    %edi,%ebp
   2:	41 54                	push   %r12
   4:	53                   	push   %rbx
   5:	48 89 f3             	mov    %rsi,%rbx
   8:	48 83 ec 10          	sub    $0x10,%rsp
   c:	e8 10 0b b6 ff       	callq  0xffb60b21
  11:	48 8d 7b 0c          	lea    0xc(%rbx),%rdi
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 c1 ea 03          	shr    $0x3,%rdx
  26:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
* 2a:	48 89 f8             	mov    %rdi,%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 08                	jl     0x3f
  37:	84 d2                	test   %dl,%dl
  39:	0f 85 77 05 00 00    	jne    0x5b6
  3f:	44                   	rex.R