rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (0 ticks this GP) idle=32d/1/0x4000000000000000 softirq=94665/94665 fqs=4734 
	(detected by 1, t=10502 jiffies, g=106213, q=203971)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15621 Comm: syz.2.20707 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:mark_lock+0x0/0x320 kernel/locking/lockdep.c:4552
Code: 38 c1 7c 90 48 c7 c7 c8 c2 69 8d e8 2a 84 5f 00 4c 89 f7 41 89 d9 e9 79 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <55> 41 57 41 56 41 55 41 54 53 50 89 d5 49 89 f6 48 89 fb 49 bd 00
RSP: 0000:ffffc9000541f938 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffff88805dcd28a8 RCX: ffffffff815caf64
RDX: 0000000000000002 RSI: ffff88805dcd28d8 RDI: ffff88805dcd1dc0
RBP: ffffc9000541f9f8 R08: dffffc0000000000 R09: fffffbfff1ff761f
R10: fffffbfff1ff761f R11: 1ffffffff1ff761e R12: ffff88805dcd28f8
R13: 0000000000000001 R14: 1ffff1100bb9a515 R15: ffff88805dcd28d8
FS:  0000555556c7f500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fa63fff CR3: 000000005b8c4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mark_held_locks kernel/locking/lockdep.c:4193 [inline]
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:4211 [inline]
 lockdep_hardirqs_on_prepare+0x23c/0x760 kernel/locking/lockdep.c:4278
 trace_hardirqs_on+0x67/0x80 kernel/trace/trace_preemptirq.c:49
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x84/0x480 kernel/rcu/tree_plugin.h:674
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 ad 13 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0000:ffffc9000541fac0 EFLAGS: 00000206
RAX: 2d7b1fc3bd290f00 RBX: 1ffff92000a83f5c RCX: 2d7b1fc3bd290f00
RDX: dffffc0000000000 RSI: ffffffff8a0b1620 RDI: ffffffff8a59a240
RBP: ffffc9000541fb98 R08: dffffc0000000000 R09: fffffbfff1ff7619
R10: fffffbfff1ff7619 R11: 1ffffffff1ff7618 R12: ffffffff8c120900
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:771 [inline]
 __unlock_page_memcg+0xea/0x100 mm/memcontrol.c:2093
 do_set_pte+0x3c9/0x530 mm/memory.c:4069
 finish_fault+0x52e/0x8d0 mm/memory.c:4143
 do_shared_fault mm/memory.c:4336 [inline]
 do_fault mm/memory.c:4396 [inline]
 handle_pte_fault mm/memory.c:4650 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x2157/0x43c0 mm/memory.c:4883
 do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7f343f730021
Code: 85 5a ff ff 48 8b 05 56 47 ea 00 0f b6 4c 24 10 be 08 00 00 00 48 89 df 83 05 32 47 ea 00 01 48 8d 50 ff 48 89 15 37 47 ea 00 <88> 48 ff 8b 2d 1e 47 ea 00 e8 51 5a ff ff 48 8b 05 2a 47 ea 00 41
RSP: 002b:00007ffda7c51690 EFLAGS: 00010202
RAX: 0000001b2fa64000 RBX: 00007f34405d4720 RCX: 0000000000000003
RDX: 0000001b2fa63fff RSI: 0000000000000008 RDI: 00007f34405d4720
RBP: 00007f343faa5038 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f34405d4700 R11: 0000000000000000 R12: 00000000fffffc03
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>