rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2676 jiffies s: 336697 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 20014 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0x30 kernel/rcu/update.c:279
Code: 64 f5 03 00 75 e8 48 c7 c7 40 16 8c 8a 48 c7 c6 20 3a 8c 8a e8 91 d8 22 f7 0f 0b eb d1 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 <31> c0 83 3d 77 30 f5 03 00 74 1d 83 3d 02 64 f5 03 00 74 14 65 48
RSP: 0018:ffffc9000c38f0f8 EFLAGS: 00000096
RAX: 41c73e041ab79500 RBX: 0000000000000000 RCX: 41c73e041ab79500
RDX: 0000000000000000 RSI: ffffffff8a8c2920 RDI: ffffffff8adee1a0
RBP: ffffc9000c38f1f8 R08: dffffc0000000000 R09: 1ffffffff215e448
R10: dffffc0000000000 R11: fffffbfff215e449 R12: ffffffff8cb80200
R13: 1ffff92001871e2c R14: ffff8880b8e354b0 R15: 0000000000000000
FS:  0000555578230500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea92a4f270 CR3: 0000000055ff6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 rcu_read_lock include/linux/rcupdate.h:792 [inline]
 trace_call_bpf+0xe9/0x6b0 kernel/trace/bpf_trace.c:134
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10027
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
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 82 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc9000c38f420 EFLAGS: 00000206
RAX: 41c73e041ab79500 RBX: 1ffff92001871e8c RCX: 41c73e041ab79500
RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adee1a0
RBP: ffffc9000c38f510 R08: ffffffff90af22df R09: 1ffffffff215e45b
R10: dffffc0000000000 R11: fffffbfff215e45c R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3bb00 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 page_ext_put+0x91/0xb0 mm/page_ext.c:182
 page_table_check_pte_set include/linux/page_table_check.h:83 [inline]
 set_pte_at arch/x86/include/asm/pgtable.h:1009 [inline]
 copy_present_pte mm/memory.c:1000 [inline]
 copy_pte_range mm/memory.c:1091 [inline]
 copy_pmd_range mm/memory.c:1177 [inline]
 copy_pud_range mm/memory.c:1214 [inline]
 copy_p4d_range mm/memory.c:1238 [inline]
 copy_page_range+0x2586/0x3a60 mm/memory.c:1332
 dup_mmap kernel/fork.c:703 [inline]
 dup_mm kernel/fork.c:1547 [inline]
 copy_mm+0xeb0/0x1680 kernel/fork.c:1596
 copy_process+0x19a6/0x40c0 kernel/fork.c:2357
 kernel_clone+0x24b/0x900 kernel/fork.c:2764
 __do_sys_clone kernel/fork.c:2905 [inline]
 __se_sys_clone kernel/fork.c:2889 [inline]
 __x64_sys_clone+0x1a7/0x220 kernel/fork.c:2889
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbbaf1c58d2
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007fffa879acc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fffa879acc0 RCX: 00007fbbaf1c58d2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fffa879ae4c R08: 0000000000000000 R09: 0000000000000001
R10: 00005555782307d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 000000000028671c R15: 00007fffa879aea0
 </TASK>