rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=4eb/1/0x4000000000000002 softirq=56032/56033 fqs=2099 
	(detected by 1, t=10503 jiffies, g=66633, q=283681)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 17551 Comm: syz.4.12288 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:224 [inline]
RIP: 0010:pvclock_clocksource_read+0xe7/0x760 arch/x86/kernel/pvclock.c:76
Code: df 48 89 54 24 38 4c 89 74 24 28 42 0f b6 04 22 84 c0 0f 85 45 01 00 00 43 0f b6 04 26 84 c0 0f 85 7f 01 00 00 8b 1f 0f 01 f9 <66> 90 48 89 d5 48 8b 8c 24 90 00 00 00 42 0f b6 0c 21 84 c9 0f 85
RSP: 0000:ffffc90000007e88 EFLAGS: 00000046
RAX: 00000000df69db30 RBX: 000000000000000a RCX: 0000000000000000
RDX: 0000000000000161 RSI: ffffffff8f0e701c RDI: ffffffff8f0e7000
RBP: 0000000000010000 R08: ffffffff8f0e7008 R09: ffffffff8f0e7018
R10: ffffffff8f0e7010 R11: ffffffff8f0e7003 R12: dffffc0000000000
R13: 0000000000000000 R14: 1ffffffff1e1ce00 R15: ffffffff8be30820
FS:  000055556fdb3500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3b5af44000 CR3: 0000000023cb7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 kvm_clock_read arch/x86/kernel/kvmclock.c:79 [inline]
 kvm_sched_clock_read+0x14/0x40 arch/x86/kernel/kvmclock.c:91
 sched_clock_cpu+0x15/0x3c0 kernel/sched/clock.c:371
 irqtime_account_irq+0x6a/0x1b0 kernel/sched/cputime.c:61
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x90/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <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 e2 f0 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:ffffc9000600f980 EFLAGS: 00000206
RAX: d522aa057b841d00 RBX: 1ffff92000c01f34 RCX: d522aa057b841d00
RDX: dffffc0000000000 RSI: ffffffff8a2b2780 RDI: ffffffff8a79f740
RBP: ffffc9000600fa58 R08: ffffffff901d20c7 R09: 1ffffffff203a418
R10: dffffc0000000000 R11: fffffbfff203a419 R12: ffffffff8c322f00
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]
 __mod_lruvec_page_state+0x1fe/0x330 mm/memcontrol.c:789
 page_add_new_anon_rmap+0x57d/0x8a0 mm/rmap.c:1203
 wp_page_copy+0xe25/0x2050 mm/memory.c:3116
 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: 0033:0x7f3b5ab967c3
Code: 53 48 83 ec 38 80 3d 5b d8 3a 00 00 89 7c 24 18 48 89 74 24 28 0f 85 cd 09 00 00 80 3d 2a 0f ee 00 00 49 89 f1 41 89 d2 89 cb <c6> 05 36 d8 3a 00 01 41 89 d7 0f 85 45 04 00 00 80 3d f6 0e ee 00
RSP: 002b:00007ffd02f1d9b0 EFLAGS: 00010246
RAX: 00007f3b5af47fa0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 00007f3b5af48038 RDI: 0000000000000000
RBP: 00007f3b5af47fb0 R08: 0000000000000000 R09: 00007f3b5af48038
R10: 0000000000000003 R11: 0000000000000001 R12: 00007f3b5af47fa0
R13: 0000200000000000 R14: 00007ffd02f1da28 R15: 00007f3b5af47fa0
 </TASK>