rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (0 ticks this GP) idle=cb3/1/0x4000000000000000 softirq=121577/121577 fqs=2099 
	(detected by 1, t=10502 jiffies, g=167101, q=1582)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6050 Comm: modprobe Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:check_preemption_disabled+0x3/0x110 lib/smp_processor_id.c:13
Code: c7 c7 40 ea 32 8a e8 2c 01 00 00 65 ff 0d e1 2f 43 76 5b c3 00 00 cc 48 c7 c7 a0 41 7a 8a 48 c7 c6 e0 41 7a 8a eb 00 55 41 57 <41> 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65
RSP: 0000:ffffc90000007fc8 EFLAGS: 00000002
RAX: 0000000000010001 RBX: ffffc900037ff8d8 RCX: ffffffff962f4f03
RDX: 0000000000000000 RSI: ffffffff8a2a1400 RDI: ffffffff8a7a4200
RBP: 0000000000000000 R08: ffffffff8d8b0def R09: 1ffffffff1b161bd
R10: dffffc0000000000 R11: ffffc90000007ff8 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f5c160f4c80(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5c1638c000 CR3: 0000000040231000 CR4: 00000000003506f0
DR0: 0000000000000004 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irq_enter_rcu+0x23/0xe0 kernel/softirq.c:618
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x90/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 02 20 9d 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0000:ffffc900037ff980 EFLAGS: 00000206
RAX: 3593fd6423e4a500 RBX: 1ffff920006fff34 RCX: 3593fd6423e4a500
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a4200
RBP: ffffc900037ffa60 R08: ffffffff901ee0c7 R09: 1ffffffff203dc18
R10: dffffc0000000000 R11: fffffbfff203dc19 R12: ffffffff8c323400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 __mod_lruvec_page_state+0x1fe/0x330 mm/memcontrol.c:789
 page_add_new_anon_rmap+0x571/0x890 mm/rmap.c:1203
 wp_page_copy+0xe5d/0x2090 mm/memory.c:3116
 handle_pte_fault mm/memory.c:4668 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x1fbd/0x4440 mm/memory.c:4883
 do_user_addr_fault+0x494/0xc90 arch/x86/mm/fault.c:1355
 handle_page_fault arch/x86/mm/fault.c:1443 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1496
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7f5c1646e4ac
Code: d0 48 83 c1 08 4c 01 10 48 8d 78 08 48 39 f1 73 35 48 8b 01 a8 01 74 e6 48 d1 e8 48 89 fa 74 16 66 0f 1f 44 00 00 a8 01 74 03 <4c> 01 12 48 83 c2 08 48 d1 e8 75 f0 48 83 c1 08 48 81 c7 f8 01 00
RSP: 002b:00007ffe33256030 EFLAGS: 00010202
RAX: 00000fffffffe3ff RBX: 0000000000000000 RCX: 00007f5c161e4348
RDX: 00007f5c1638c000 RSI: 00007f5c161e4400 RDI: 00007f5c1638bfd0
RBP: 00007ffe33256150 R08: 0000000000000000 R09: 00007f5c16496da0
R10: 00007f5c161bd000 R11: 0000000000000203 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f5c1645f5f0 R15: 0000000000000000
 </TASK>