rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2667 jiffies s: 153833 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 32615 Comm: syz.2.8637 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:168 [inline]
RIP: 0010:unwind_next_frame+0x19b/0x1fd0 arch/x86/kernel/unwind_orc.c:448
Code: ef 08 8b 35 97 04 2d 0b 8d 46 ff 44 39 f8 0f 86 b0 16 00 00 44 89 f8 4c 8d 24 85 9c de 3f 8f 4c 89 e0 48 c1 e8 03 0f b6 04 28 <84> c0 0f 85 23 18 00 00 45 8b 24 24 44 89 f8 ff c0 4c 8d 2c 85 9c
RSP: 0018:ffffc900001e0018 EFLAGS: 00000802
RAX: 0000000000000000 RBX: ffffc900001e0120 RCX: ffffffff96c17100
RDX: 0000000000000019 RSI: 000000000009607a RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffffc90004d67c80 R09: ffffc900001e0170
R10: dffffc0000000000 R11: fffff5200003c030 R12: ffffffff8f4328a8
R13: ffffc90004d67c90 R14: ffffffff81d2836a R15: 000000000000d283
FS:  00007f0ac93f26c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19c4626a77 CR3: 000000001e716000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_callchain_kernel+0x42a/0x690 arch/x86/events/core.c:2805
 get_perf_callchain+0x236/0x490 kernel/events/callchain.c:204
 perf_callchain kernel/events/core.c:7512 [inline]
 perf_prepare_sample+0x399/0x2020 kernel/events/core.c:7545
 __perf_event_output kernel/events/core.c:7730 [inline]
 perf_event_output_forward+0x197/0x2f0 kernel/events/core.c:7750
 __perf_event_overflow+0x457/0x630 kernel/events/core.c:9496
 perf_swevent_overflow kernel/events/core.c:9579 [inline]
 perf_swevent_event+0x315/0x570 kernel/events/core.c:9630
 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10064
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032
 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 a2 7c 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:ffffc900001e0ae0 EFLAGS: 00000206
RAX: 98c51501d1e42700 RBX: 1ffff9200003c164 RCX: 98c51501d1e42700
RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adf5de0
RBP: ffffc900001e0bd0 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3bb00 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__reset_page_owner+0x0/0x190 mm/page_owner.c:137
Code: 31 ff e8 33 2d a6 ff 4c 89 f0 48 83 e0 01 75 0a e8 45 29 a6 ff e9 42 ff ff ff 49 ff ce e8 38 29 a6 ff 4c 89 f3 e9 32 ff ff ff <55> 41 57 41 56 41 55 41 54 53 48 83 ec 18 89 f5 49 89 ff e8 18 29
RSP: 0018:ffffc90004d67a48 EFLAGS: 00000246
RAX: 1ffffd40004329c5 RBX: ffffea0002194e00 RCX: 00fff00000000000
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffea0002194e00
RBP: dffffc0000000000 R08: ffffea0002194e37 R09: 1ffffd40004329c6
R10: dffffc0000000000 R11: fffff940004329c7 R12: 0000000000000000
R13: 0000000000000003 R14: 0000000000000000 R15: ffffea0002194e28
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1487 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x8e5/0x9e0 mm/page_alloc.c:3414
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3509
 free_slab mm/slub.c:2036 [inline]
 discard_slab mm/slub.c:2042 [inline]
 __unfreeze_partials+0x188/0x1e0 mm/slub.c:2591
 put_cpu_partial+0x17c/0x250 mm/slub.c:2667
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:306
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x4b/0x490 mm/slab.h:737
 slab_alloc_node mm/slub.c:3359 [inline]
 slab_alloc mm/slub.c:3367 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3374 [inline]
 kmem_cache_alloc+0x18b/0x2f0 mm/slub.c:3383
 sk_prot_alloc+0x57/0x210 net/core/sock.c:2051
 sk_alloc+0x36/0x330 net/core/sock.c:2113
 unix_create1+0xb3/0x710 net/unix/af_unix.c:-1
 unix_create+0x139/0x1f0 net/unix/af_unix.c:1017
 __sock_create+0x49a/0x940 net/socket.c:1550
 sock_create net/socket.c:1606 [inline]
 __sys_socketpair+0x1bd/0x540 net/socket.c:1733
 __do_sys_socketpair net/socket.c:1786 [inline]
 __se_sys_socketpair net/socket.c:1783 [inline]
 __x64_sys_socketpair+0x97/0xb0 net/socket.c:1783
 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: 0033:0x7f0ac859e019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0ac93f2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f0ac8826090 RCX: 00007f0ac859e019
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001
RBP: 00007f0ac863500c R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0ac8826128 R14: 00007f0ac8826090 R15: 00007ffdc1b9d348
 </TASK>