rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=0b7/1/0x4000000000000000 softirq=33607/33608 fqs=2100 
	(detected by 1, t=10506 jiffies, g=43685, q=227883)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11994 Comm: syz.4.7053 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:mark_held_locks kernel/locking/lockdep.c:4252 [inline]
RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4278 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0x211/0x7c0 kernel/locking/lockdep.c:4345
Code: 4c 8d bb f0 0a 00 00 4c 8d a3 10 0b 00 00 45 31 ed 49 83 fd 31 73 73 4c 89 e0 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 85 00 00 00 <41> 8b 47 20 a9 00 00 04 00 74 34 25 00 00 03 00 83 f8 01 ba 03 00
RSP: 0000:ffffc90003dcf960 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88802bfe5940 RCX: eb48d42f5b96e500
RDX: dffffc0000000000 RSI: ffff88802bfe6428 RDI: ffffffff8a7a5100
RBP: ffffc90003dcfa18 R08: ffff8880b8e3b30b R09: 1ffff110171c7661
R10: dffffc0000000000 R11: ffffed10171c7662 R12: ffff88802bfe6450
R13: 0000000000000000 R14: 1ffff110057fcc85 R15: ffff88802bfe6430
FS:  000055557adc8500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33c63fff CR3: 000000007ac00000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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+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 d2 f6 9c 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:ffffc90003dcfae0 EFLAGS: 00000206
RAX: eb48d42f5b96e500 RBX: 1ffff920007b9f60 RCX: eb48d42f5b96e500
RDX: dffffc0000000000 RSI: ffffffff8a2b2b60 RDI: ffffffff8a7a5100
RBP: ffffc90003dcfba8 R08: ffffffff910470c7 R09: 1ffffffff2208e18
R10: dffffc0000000000 R11: fffffbfff2208e19 R12: ffffffff8d123400
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]
 __unlock_page_memcg+0xea/0x100 mm/memcontrol.c:2093
 do_set_pte+0x3c9/0x530 mm/memory.c:4069
 finish_fault+0x532/0x8c0 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+0x21a0/0x4440 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: 0033:0x7f670c937d51
Code: 00 48 89 ef e8 10 4f ff ff 48 8b 05 29 da ee 00 83 05 12 da ee 00 01 be 08 00 00 00 48 89 ef 48 8d 50 ff 48 89 15 0f da ee 00 <44> 88 78 ff 44 8b 3d f4 d9 ee 00 e8 df 4e ff ff 48 8b 05 00 da ee
RSP: 002b:00007fffee0675a0 EFLAGS: 00010202
RAX: 0000001b33c64000 RBX: 0000000000000000 RCX: 000000000003fde8
RDX: 0000001b33c63fff RSI: 0000000000000008 RDI: 00007f670d825720
RBP: 00007f670d825720 R08: 0000000000000000 R09: 00007f670ccf6038
R10: 00007f670d825700 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
 </TASK>