rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=565/1/0x4000000000000002 softirq=36898/36904 fqs=5207 
	(detected by 1, t=10502 jiffies, g=43689, q=148168)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16643 Comm: syz.0.6077 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:error_entry+0x1c/0xf0 arch/x86/entry/entry_64.S:1011
Code: 7a fe ff ff 0f 01 f8 e9 72 fe ff ff 90 90 56 48 8b 74 24 08 48 89 7c 24 08 52 51 50 41 50 41 51 41 52 41 53 53 55 41 54 41 55 <41> 56 41 57 56 31 d2 31 c9 45 31 c0 45 31 c9 45 31 d2 45 31 db 31
RSP: 0000:ffffc9000398fa28 EFLAGS: 00000006
RAX: 1648f921ed048a00 RBX: 1ffff92000731f5c RCX: 1648f921ed048a00
RDX: dffffc0000000000 RSI: ffffffff89e00e3b RDI: ffffffff8a79f980
RBP: ffffc9000398fb98 R08: ffffffff901d40c7 R09: 1ffffffff203a818
R10: dffffc0000000000 R11: fffffbfff203a819 R12: ffffffff8c322f00
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
FS:  0000555566a70500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed63fff CR3: 00000000183cd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
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 12 f2 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:ffffc9000398fac0 EFLAGS: 00000206
 __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+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+0x2193/0x4410 mm/memory.c:4883
 do_user_addr_fault+0x489/0xc80 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: 0033:0x7fdbdc58f0d1
Code: 00 48 89 ef e8 60 52 ff ff 48 8b 05 a9 06 ee 00 83 05 92 06 ee 00 01 be 08 00 00 00 48 89 ef 48 8d 50 ff 48 89 15 8f 06 ee 00 <44> 88 78 ff 44 8b 3d 74 06 ee 00 e8 2f 52 ff ff 48 8b 05 80 06 ee
RSP: 002b:00007fffa8a0ba20 EFLAGS: 00010202
RAX: 0000001b2ed64000 RBX: 0000000000000000 RCX: 000000000003fde8
RDX: 0000001b2ed63fff RSI: 0000000000000008 RDI: 00007fdbdd46f720
RBP: 00007fdbdd46f720 R08: 0000000000000000 R09: 00007fdbdc940038
R10: 00007fdbdd46f700 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
 </TASK>