rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=e35/1/0x4000000000000002 softirq=11410/11411 fqs=2100 
	(detected by 1, t=10506 jiffies, g=13869, q=1670)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5834 Comm: syz.1.556 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:debug_lockdep_rcu_enabled+0x1c/0x30 kernel/rcu/update.c:281
Code: d1 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 31 c0 83 3d 8b 3c c1 03 00 74 1d 83 3d 02 6f c1 03 00 74 14 65 48 8b 0d 74 3c 5a 76 <31> c0 83 b9 ec 0a 00 00 00 0f 94 c0 c3 00 00 cc cc 00 00 cc 41 56
RSP: 0018:ffffc9000310ec18 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffff888061fd03a0 RCX: ffff888020719dc0
RDX: 0000000000000000 RSI: ffffffff8a599320 RDI: ffff888061fd02e0
RBP: ffffc9000310ed50 R08: dffffc0000000000 R09: fffffbfff1ff6e19
R10: fffffbfff1ff6e19 R11: 1ffffffff1ff6e18 R12: 1ffff92000621d94
R13: 0000000000000008 R14: ffffc9000310eda0 R15: ffffc9000310efc0
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3131fffc CR3: 000000001ea9b000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 __perf_output_begin kernel/events/ring_buffer.c:170 [inline]
 perf_output_begin_forward+0x192/0xa30 kernel/events/ring_buffer.c:271
 __perf_event_output kernel/events/core.c:7790 [inline]
 perf_event_output_forward+0x15c/0x280 kernel/events/core.c:7808
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9501
 perf_swevent_overflow kernel/events/core.c:9577 [inline]
 perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9615
 perf_tp_event+0x32c/0xb50 kernel/events/core.c:10033
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10007
 perf_trace_preemptirq_template+0x2be/0x380 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+0x84/0x480 kernel/rcu/tree_plugin.h:671
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 7d 16 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc9000310f420 EFLAGS: 00000206
RAX: d852c0b41921b400 RBX: 1ffff92000621e88 RCX: d852c0b41921b400
RDX: dffffc0000000000 RSI: ffffffff8a0b15c0 RDI: ffffffff8a599340
RBP: ffffc9000310f4f0 R08: dffffc0000000000 R09: fffffbfff1ff6e19
R10: fffffbfff1ff6e19 R11: 1ffffffff1ff6e18 R12: ffffffff8c120800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:771 [inline]
 __unlock_page_memcg+0xea/0x100 mm/memcontrol.c:2093
 zap_pte_range mm/memory.c:1384 [inline]
 zap_pmd_range mm/memory.c:1505 [inline]
 zap_pud_range mm/memory.c:1534 [inline]
 zap_p4d_range mm/memory.c:1555 [inline]
 unmap_page_range+0xfbc/0x2520 mm/memory.c:1576
 unmap_vmas+0x11b/0x230 mm/memory.c:1653
 exit_mmap+0x38f/0x5f0 mm/mmap.c:3212
 __mmput+0x115/0x3b0 kernel/fork.c:1127
 exit_mm+0x567/0x6c0 kernel/exit.c:550
 do_exit+0x5a1/0x20a0 kernel/exit.c:870
 do_group_exit+0x12e/0x300 kernel/exit.c:997
 get_signal+0x6ca/0x12c0 kernel/signal.c:2900
 arch_do_signal_or_restart+0xc1/0x1300 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff05d00db69
Code: Unable to access opcode bytes at RIP 0x7ff05d00db3f.
RSP: 002b:00007ff05ae75038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: fffffffffffffe00 RBX: 00007ff05d234fa0 RCX: 00007ff05d00db69
RDX: 0000000000000002 RSI: 0000200000000700 RDI: 0000000000000003
RBP: 00007ff05d090df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff05d234fa0 R15: 00007ffdebed2618
 </TASK>