rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=6e5c/1/0x4000000000000000 softirq=67611/67611 fqs=5239
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     8102          0            0
rcu: 	cputime:      141      52348            6   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=110421 q=15121 ncpus=2)
CPU: 0 UID: 0 PID: 17235 Comm: syz.5.4583 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:221
Code: f7 e8 2d d8 bb f5 f7 c3 00 02 00 00 74 05 e8 60 20 e8 f5 9c 58 a9 00 02 00 00 75 29 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 94 e5 ac f5 65 48 8b 05 0c f1 ac 07 48 85 c0 74 18 5b 41 5e e9
RSP: 0018:ffffc90000007e10 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000283 RCX: 0000000000000102
RDX: 0000000000000002 RSI: ffffffff8e413272 RDI: 0000000000000001
RBP: ffff8880528fbd38 R08: ffffffff907a3d7f R09: 1ffffffff20f47af
R10: dffffc0000000000 R11: fffffbfff20f47b0 R12: ffff8880b8628280
R13: ffffffff89df5440 R14: ffff8880b8628280 R15: 1ffff110170c50da
FS:  0000000000000000(0000) GS:ffff888124cd1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f00a4e46ff8 CR3: 000000000eb48000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:2070 [inline]
 __hrtimer_run_queues+0x2bf/0xa10 kernel/time/hrtimer.c:2131
 hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2148
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:zap_present_folio_ptes mm/memory.c:1789 [inline]
RIP: 0010:zap_present_ptes mm/memory.c:1861 [inline]
RIP: 0010:do_zap_pte_range mm/memory.c:1963 [inline]
RIP: 0010:zap_pte_range mm/memory.c:2065 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:2151 [inline]
RIP: 0010:zap_pud_range mm/memory.c:2179 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:2200 [inline]
RIP: 0010:__zap_vma_range+0x21d1/0x4f80 mm/memory.c:2240
Code: e8 14 21 1b 00 48 8b 33 48 89 f3 48 c1 e3 2e 48 c1 fb 3f 81 e6 00 00 02 00 31 ff e8 a9 21 ab ff 83 e3 03 ff 8c 9c 40 02 00 00 <eb> 11 e8 d8 1b ab ff b8 01 00 00 00 ff 8c 84 40 02 00 00 48 8b 7c
RSP: 0018:ffffc900064873a0 EFLAGS: 00000292
RAX: ffffffff821cb467 RBX: 0000000000000000 RCX: ffff88807e499f40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90006487690 R08: ffffea000195ea07 R09: 1ffffd400032bd40
R10: dffffc0000000000 R11: fffff9400032bd41 R12: 80000000657a8000
R13: 00007f5c5cdff000 R14: 80000000657a8007 R15: 00007f5c5cda7000
 unmap_vmas+0x390/0x550 mm/memory.c:2309
 exit_mmap+0x293/0x9f0 mm/mmap.c:1315
 __mmput+0x118/0x420 kernel/fork.c:1193
 exit_mm+0x221/0x2d0 kernel/exit.c:617
 do_exit+0x6cd/0x2360 kernel/exit.c:999
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1154
 get_signal+0x121b/0x12c0 kernel/signal.c:3051
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
 do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5c5cf9e159
Code: Unable to access opcode bytes at 0x7f5c5cf9e12f.
RSP: 002b:00007f5c5dedd0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5c5d225fa8 RCX: 00007f5c5cf9e159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5c5d225fa8
RBP: 00007f5c5d225fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5c5d226038 R14: 00007ffd2bec0320 R15: 00007ffd2bec0408
 </TASK>
sched: DL replenish lagged too much