rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 ticks this GP) idle=4e1/1/0x4000000000000002 softirq=15227/15228 fqs=5247 
	(detected by 1, t=10502 jiffies, g=20005, q=498)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5298 Comm: syz.0.912 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:kvm_is_in_guest+0x1/0x30 arch/x86/kvm/x86.c:8606
Code: 80 e1 07 80 c1 03 38 c1 0f 8c b8 fc ff ff 48 89 df e8 a3 6c af 00 e9 ab fc ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 53 <e8> 3a 53 6a 00 48 c7 c7 00 56 22 8a e8 8e 95 ae 08 65 48 8b 1d 16
RSP: 0000:ffffc900052d7228 EFLAGS: 00000046
RAX: 1ffffffff1824bb4 RBX: ffff8880b9035120 RCX: ffff88802a0a5940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffc900052d73d7 R09: ffffc900052d73a0
R10: dffffc0000000000 R11: fffff52000a5ae7b R12: dffffc0000000000
R13: ffffc900052d7406 R14: ffffffff8c125da0 R15: dffffc0000000000
FS:  000055558b98e500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2086ca000 CR3: 000000007d664000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 perf_misc_flags+0x8f/0x1b0 arch/x86/events/core.c:2964
 perf_prepare_sample+0x132/0x1cd0 kernel/events/core.c:7622
 __perf_event_output kernel/events/core.c:7802 [inline]
 perf_event_output_forward+0x185/0x2e0 kernel/events/core.c:7822
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_swevent_overflow kernel/events/core.c:9591 [inline]
 perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9629
 perf_tp_event+0x383/0xbf0 kernel/events/core.c:10047
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 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 f2 cc 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:ffffc900052d7a00 EFLAGS: 00000206
RAX: 435f58243ce8c700 RBX: 1ffff92000a5af44 RCX: 435f58243ce8c700
RDX: dffffc0000000000 RSI: ffffffff8a2b3180 RDI: ffffffff8a7a09c0
RBP: ffffc900052d7ad0 R08: ffffffff901d80c7 R09: 1ffffffff203b018
R10: dffffc0000000000 R11: fffffbfff203b019 R12: ffffffff8c323800
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+0xef5/0x2050 mm/memory.c:3148
 handle_pte_fault mm/memory.c:4668 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x1f06/0x4410 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: 0033:0x7fa20831d5c3
Code: 53 48 83 ec 38 80 3d 5b ca 3a 00 00 89 7c 24 18 48 89 74 24 28 0f 85 cd 09 00 00 80 3d 2a 01 ee 00 00 49 89 f1 41 89 d2 89 cb <c6> 05 36 ca 3a 00 01 41 89 d7 0f 85 45 04 00 00 80 3d f6 00 ee 00
RSP: 002b:00007fff2aeadf10 EFLAGS: 00010246
RAX: 00007fa2086cdfa0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 00007fa2086ce038 RDI: 0000000000000000
RBP: 00007fa2086cdfb0 R08: 0000000000000000 R09: 00007fa2086ce038
R10: 0000000000000003 R11: 0000000000000000 R12: 00007fa2086cdfa0
R13: 0000200000000000 R14: 00007fff2aeadf88 R15: 00007fa2086cdfa0
 </TASK>