rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (4223 ticks this GP) idle=597c/1/0x4000000000000000 softirq=68470/68472 fqs=2376
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1188992         37            0
rcu: 	cputime:    14317      27892           27   ==> 42210(ms)
rcu: 	(t=10500 jiffies g=86269 q=2127 ncpus=2)
CPU: 0 PID: 17538 Comm: syz.1.3010 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:skb_defer_free_flush net/core/dev.c:6760 [inline]
RIP: 0010:net_rx_action+0x3a6/0xc40 net/core/dev.c:6834
Code: 1c 24 74 08 48 89 df e8 c8 58 62 f9 48 89 1b 48 89 5b 08 4c 8b 74 24 38 eb 05 e8 75 20 0a f9 e8 80 92 10 f9 fb 48 8b 44 24 50 <42> 80 3c 28 00 74 08 4c 89 f7 e8 fb 57 62 f9 49 83 3e 00 0f 84 98
RSP: 0018:ffffc90000007cc0 EFLAGS: 00000282
RAX: 1ffff110171c7b39 RBX: ffff8880b8e3d600 RCX: bd92c5daf97a4f00
RDX: dffffc0000000000 RSI: ffffffff8acac9e0 RDI: ffffffff8b1c8e60
RBP: ffffc90000007e30 R08: ffffffff911c55ff R09: 1ffffffff2238abf
R10: dffffc0000000000 R11: fffffbfff2238ac0 R12: ffffc90000007da0
R13: dffffc0000000000 R14: ffff8880b8e3d9c8 R15: ffff8880b8e3d7d0
FS:  00007f916bf9f6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 0000000033127000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:generic_exec_single+0x481/0x4f0 kernel/smp.c:418
Code: 75 11 e8 42 05 0b 00 48 85 db 75 16 e8 38 05 0b 00 eb 15 e8 31 05 0b 00 e8 0c 3e 0a 09 48 85 db 74 ea e8 22 05 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 43 c7 44 2c 08
RSP: 0018:ffffc900047bfa00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc9001bf9a000 RSI: 00000000000053e2 RDI: 00000000000053e3
RBP: ffffc900047bfad0 R08: ffffffff911c55ff R09: 1ffffffff2238abf
R10: dffffc0000000000 R11: fffffbfff2238ac0 R12: 1ffff920008f7f44
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920008f7f65
 smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x5be/0x920 kernel/events/core.c:2959
 __do_sys_perf_event_open kernel/events/core.c:12957 [inline]
 __se_sys_perf_event_open+0x1836/0x1c50 kernel/events/core.c:12609
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f916b19c819
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:00007f916bf9f028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f916b415fa0 RCX: 00007f916b19c819
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007f916b232c91 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f916b416038 R14: 00007f916b415fa0 R15: 00007ffcdb7d79f8
 </TASK>