rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2649 jiffies s: 3989 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: 4573 Comm: syz.4.48 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:unwind_next_frame+0x66f/0x20b0 arch/x86/kernel/unwind_orc.c:475
Code: 85 e3 15 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 ef 15 00 00 49 0f bf 04 24 48 01 c5 e9 fa 00 00 00 4c 8d 7b 40 <4c> 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 2b 9a 98 00
RSP: 0018:ffffc90000006d08 EFLAGS: 00000093
RAX: 0000000000000014 RBX: ffffc90000006e40 RCX: ffffffff8e2f1864
RDX: ffffffff8e9ee032 RSI: ffffffff8e2f1860 RDI: 0000000000000001
RBP: ffffffff8e9ee036 R08: 0000000000000001 R09: ffffc90000006e90
R10: fffff52000000dd4 R11: 1ffff92000000dd2 R12: ffffffff8e9ee032
R13: dffffc0000000000 R14: ffffffff8e2f1860 R15: ffffc90000006e80
FS:  00007fa1a13c56c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000026b5f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 perf_callchain_kernel+0x461/0x5c0 arch/x86/events/core.c:2805
 get_perf_callchain+0x376/0x480 kernel/events/callchain.c:200
 perf_callchain kernel/events/core.c:7512 [inline]
 perf_prepare_sample+0x399/0x2040 kernel/events/core.c:7545
 __perf_event_output kernel/events/core.c:7730 [inline]
 perf_event_output_forward+0x163/0x2a0 kernel/events/core.c:7750
 __perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
 perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
 perf_trace_preemptirq_template+0x287/0x330 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+0x84/0x500 kernel/rcu/tree_plugin.h:685
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 ed 90 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007740 EFLAGS: 00000206
RAX: 0438ee6001d7cb00 RBX: 1ffff92000000ef0 RCX: 0438ee6001d7cb00
RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: ffffffff8adef760
RBP: ffffc90000007840 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 netif_receive_skb_list_internal+0x9e1/0xc50 net/core/dev.c:5816
 gro_normal_list include/net/gro.h:433 [inline]
 napi_complete_done+0x37d/0x830 net/core/dev.c:6156
 virtqueue_napi_complete drivers/net/virtio_net.c:403 [inline]
 virtnet_poll+0x991/0x1150 drivers/net/virtio_net.c:1717
 __napi_poll+0xc0/0x460 net/core/dev.c:6590
 napi_poll net/core/dev.c:6657 [inline]
 net_rx_action+0x5b1/0xad0 net/core/dev.c:6771
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 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:preempt_schedule_irq+0xac/0x150 kernel/sched/core.c:6873
Code: 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 70 bf 01 00 00 00 e8 0f 42 37 f7 e8 4a be 66 f7 fb bf 01 00 00 00 <e8> df b9 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90004b0fc40 EFLAGS: 00000286
RAX: 0438ee6001d7cb00 RBX: 0000000000000000 RCX: 0438ee6001d7cb00
RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: 0000000000000001
RBP: ffffc90004b0fcf0 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000961f88
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:inode_init_always+0x767/0xc90 fs/inode.c:215
Code: 89 ff e8 5c 83 eb ff ba c8 00 00 00 49 03 17 48 8d bb 11 03 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 9b 04 00 00 <0f> b6 ab 11 03 00 00 48 8d bb 10 03 00 00 48 89 f8 48 c1 e8 03 42
RSP: 0018:ffffc90004b0fdb0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880712d80c0 RCX: ffffffff81625e2e
RDX: ffffffff8dd27968 RSI: 0000000000000004 RDI: ffff8880712d83d1
RBP: ffff8880712d83e0 R08: dffffc0000000000 R09: ffffed100e25b06b
R10: ffffed100e25b06b R11: 1ffff1100e25b06a R12: dffffc0000000000
R13: ffff8880712d84a8 R14: 1ffff1102824b805 R15: ffff88814125c028
 alloc_inode fs/inode.c:268 [inline]
 new_inode_pseudo+0x91/0x1c0 fs/inode.c:1063
 sock_alloc net/socket.c:631 [inline]
 __sock_create+0x129/0x940 net/socket.c:1514
 sock_create net/socket.c:1606 [inline]
 __sys_socket_create net/socket.c:1643 [inline]
 __sys_socket+0xc4/0x190 net/socket.c:1671
 __do_sys_socket net/socket.c:1684 [inline]
 __se_sys_socket net/socket.c:1682 [inline]
 __x64_sys_socket+0x76/0x80 net/socket.c:1682
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa1a058f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa1a13c5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fa1a07e5fa0 RCX: 00007fa1a058f749
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 000000000000002c
RBP: 00007fa1a0613f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa1a07e6038 R14: 00007fa1a07e5fa0 R15: 00007ffeafd3f578
 </TASK>