rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (0 ticks this GP) idle=80f/1/0x4000000000000002 softirq=215296/215296 fqs=5242 
	(detected by 1, t=10502 jiffies, g=317697, q=1348)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13165 Comm: syz.7.24024 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:204
Code: 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d d0 06 f4 0c 48 89 de 5b e9 b7 7f 44 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d 24 42 89 7e 65 8b 15 25 42 89 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc9000321ef50 EFLAGS: 00000093
RAX: ffffffff819c39da RBX: ffff8880662d91e8 RCX: ffff888022141dc0
RDX: 0000000000000000 RSI: ffffc9000321f300 RDI: ffffc9000321f0e0
RBP: ffffc9000321f090 R08: ffffc9000321f117 R09: ffffc9000321f0e0
R10: dffffc0000000000 R11: fffff52000643e23 R12: 1ffff92000643dfc
R13: ffffc9000321f0e0 R14: 0000000000000008 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3bfcbfdac CR3: 000000013fe73000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 rcu_lock_acquire+0xa/0x30 include/linux/rcupdate.h:313
 rcu_read_lock include/linux/rcupdate.h:740 [inline]
 __perf_output_begin kernel/events/ring_buffer.c:163 [inline]
 perf_output_begin_forward+0xa5/0xa30 kernel/events/ring_buffer.c:271
 __perf_event_output kernel/events/core.c:7816 [inline]
 perf_event_output_forward+0x19b/0x2e0 kernel/events/core.c:7834
 __perf_event_overflow+0x35f/0x550 kernel/events/core.c:9527
 perf_swevent_overflow kernel/events/core.c:9603 [inline]
 perf_swevent_event+0x4b8/0x540 kernel/events/core.c:9641
 perf_tp_event+0x324/0xbe0 kernel/events/core.c:10059
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10033
 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 d2 f6 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: 0018:ffffc9000321f720 EFLAGS: 00000206
RAX: 8ace5985d009d400 RBX: 1ffff92000643ee8 RCX: 8ace5985d009d400
RDX: dffffc0000000000 RSI: ffffffff8a2b2b60 RDI: ffffffff8a7a5100
RBP: ffffc9000321f7f0 R08: ffffffff910470c7 R09: 1ffffffff2208e18
R10: dffffc0000000000 R11: fffffbfff2208e19 R12: ffffffff8d123400
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
 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+0xee4/0x2410 mm/memory.c:1576
 unmap_vmas+0x131/0x250 mm/memory.c:1653
 exit_mmap+0x3b9/0x640 mm/mmap.c:3224
 __mmput+0x115/0x390 kernel/fork.c:1136
 exit_mm+0x632/0x7b0 kernel/exit.c:557
 do_exit+0x5b8/0x2100 kernel/exit.c:877
 do_group_exit+0x12c/0x2f0 kernel/exit.c:1004
 __do_sys_exit_group kernel/exit.c:1015 [inline]
 __se_sys_exit_group kernel/exit.c:1013 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1013
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff7f2f1cf19
Code: Unable to access opcode bytes at RIP 0x7ff7f2f1ceef.
RSP: 002b:00007fffac1dbd78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff7f2f1cf19
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fffac1dbddc R08: 0000000000000000 R09: 00000000000927c0
R10: 00007ff7f319a038 R11: 0000000000000246 R12: 0000000000000037
R13: 00000000000927c0 R14: 0000000000277a90 R15: 00007fffac1dbe30
 </TASK>