rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2635 jiffies s: 409 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: 6751 Comm: syz-executor410 Not tainted 6.1.128-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:check_preemption_disabled+0x4b/0x110 lib/smp_processor_id.c:55 Code: 8b 05 21 81 4f 75 a9 ff ff ff 7f 74 22 65 48 8b 04 25 28 00 00 00 48 3b 44 24 08 0f 85 c7 00 00 00 89 d8 48 83 c4 10 5b 41 5c <41> 5e 41 5f c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 RSP: 0000:ffffc90003ba7040 EFLAGS: 00000086 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88802b5b0000 RDX: 0000000000000100 RSI: ffffffff8b14b4e0 RDI: ffffffff8b5e6980 RBP: ffff88807309d878 R08: ffffffff81b0cb16 R09: ffffed100e613b10 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88807309d400 R15: ffff88807309d400 FS: 0000555591bf0380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000040000000014c CR3: 0000000021230000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __perf_event_account_interrupt+0x2c/0x2a0 kernel/events/core.c:9356 __perf_event_overflow+0x9a/0x640 kernel/events/core.c:9421 perf_tp_event+0x35a/0xc80 kernel/events/core.c:10005 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9978 perf_trace_preemptirq_template+0x2d1/0x3d0 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0xd5/0x140 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+0x84/0x540 kernel/rcu/tree_plugin.h:682 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 ad 18 8e 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a RSP: 0000:ffffc90003ba7620 EFLAGS: 00000206 RAX: 43454c55a7567d00 RBX: 1ffff92000774ecc RCX: ffffffff97357103 RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5e6980 RBP: ffffc90003ba76f8 R08: ffffffff81b64b7c R09: ffffed10171c6ad6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8d32ff00 R13: ffff88802b5b0458 R14: ffffc90003ba7660 R15: 1ffff92000774ec8 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] netif_receive_skb_list_internal+0xb1a/0xe20 net/core/dev.c:5773 gro_normal_list include/net/gro.h:433 [inline] napi_complete_done+0x352/0x820 net/core/dev.c:6113 virtqueue_napi_complete drivers/net/virtio_net.c:403 [inline] virtnet_poll+0xc4a/0x1450 drivers/net/virtio_net.c:1687 __napi_poll+0xc7/0x470 net/core/dev.c:6547 napi_poll net/core/dev.c:6614 [inline] net_rx_action+0x70f/0xeb0 net/core/dev.c:6728 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:661 irq_exit_rcu+0x5/0x20 kernel/softirq.c:673 common_interrupt+0x5e/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682 RIP: 0033:0x7f226985ec29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffa130dde8 EFLAGS: 00000246 RAX: 0000000000000004 RBX: 0000000000000000 RCX: 00007f226985ec29 RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 0000400000000480 RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000000a0 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.082 msecs