rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=741/1/0x4000000000000002 softirq=19411/19412 fqs=5249 
	(detected by 1, t=10502 jiffies, g=23765, q=196114)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12321 Comm: syz.1.3676 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:lockdep_hardirqs_on+0x6a/0x140 kernel/locking/lockdep.c:4395
Code: c0 75 77 65 8b 05 a6 ea 38 76 85 c0 75 6c 83 3d ab 53 4b 0d 00 75 2e 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <75> 66 83 3d 8d 53 4b 0d 00 75 10 48 8b 83 c8 0a 00 00 48 3b 83 e0
RSP: 0000:ffffc90004f6f930 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88807bcf0000 RCX: 5bcc0a75d91a1f00
RDX: dffffc0000000000 RSI: ffffffff8a2b3e00 RDI: ffffffff89e00e46
RBP: 0000000000000000 R08: ffffffff910470c7 R09: 1ffffffff2208e18
R10: dffffc0000000000 R11: fffffbfff2208e19 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000555563234500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5a4fca000 CR3: 000000005ae04000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <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 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:ffffc90004f6fa00 EFLAGS: 00000206
RAX: 5bcc0a75d91a1f00 RBX: 1ffff920009edf44 RCX: 5bcc0a75d91a1f00
RDX: dffffc0000000000 RSI: ffffffff8a2b2b60 RDI: ffffffff8a7a5100
RBP: ffffc90004f6fad0 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
 wp_page_copy+0xf34/0x2090 mm/memory.c:3148
 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: 0033:0x7fe5a4c0fea3
Code: 53 48 83 ec 38 80 3d 7b a1 3b 00 00 89 7c 24 18 48 89 74 24 28 0f 85 cd 09 00 00 80 3d 4b d8 ee 00 00 49 89 f1 41 89 d2 89 cb <c6> 05 56 a1 3b 00 01 41 89 d7 0f 85 45 04 00 00 80 3d 16 d8 ee 00
RSP: 002b:00007ffd83ad4360 EFLAGS: 00010246
RAX: 00007fe5a4fcdfa0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 00007fe5a4fce038 RDI: 0000000000000000
RBP: 00007fe5a4fcdfb0 R08: 0000000000000000 R09: 00007fe5a4fce038
R10: 0000000000000003 R11: 0000000000000001 R12: 00007fe5a4fcdfa0
R13: 0000200000000000 R14: 00007ffd83ad43d8 R15: 00007fe5a4fcdfa0
 </TASK>