rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=4bfc/1/0x4000000000000000 softirq=17254/18757 fqs=5201
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1090361        966            0
rcu: 	cputime:    24844      27646           91   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=10729 q=2855 ncpus=2)
CPU: 0 UID: 0 PID: 6646 Comm: syz.2.228 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__build_skb_around+0x0/0x3e0
Code: f8 5b 41 5e 41 5f c3 cc cc cc cc cc e8 29 0d 72 f8 eb eb 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 10 41 89 d6 49 89 f4 48 89
RSP: 0018:ffffc900000079e0 EFLAGS: 00000246
RAX: ffff888021240600 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00000000000002c0 RSI: ffff888038aeb800 RDI: ffff888021240600
RBP: 00000000ffffffff R08: ffff8880212406c7 R09: 0000000000000000
R10: ffff888021240600 R11: ffffed10042480d9 R12: ffff888038aeb800
R13: 0000000000000820 R14: ffff888021240600 R15: 00000000000002c0
FS:  00007ff9f0d126c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000037672000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000082 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __alloc_skb+0x179/0x2d0
 ndisc_alloc_skb+0x9f/0x480
 ndisc_send_rs+0x2b5/0x630
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900044af680 EFLAGS: 00000282
RAX: 3b13583e62bb3500 RBX: 0000000000000000 RCX: 3b13583e62bb3500
RDX: 0000000000000006 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc900044af730 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000895ed0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:clear_page_rep+0xb/0x20
Code: ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa b9 00 02 00 00 31 c0 <f3> 48 ab c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900044af7f0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000000001e8
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88803bd510c0
RBP: 1ffffffff1b76c87 R08: ffffffff8fa1e8f7 R09: 0000000000000000
R10: ffffed10077a8000 R11: fffffbfff1f43d1f R12: fffa80003bd51000
R13: fffa800000000000 R14: 1ffffffff1b76c85 R15: 000000000000000f
 post_alloc_hook+0x1bd/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 __alloc_pages_noprof+0xa/0x30
 ___kmalloc_large_node+0x85/0x210
 __kmalloc_large_node_noprof+0x18/0x90
 __kvmalloc_node_noprof+0x6d/0x5f0
 alloc_netdev_mqs+0x8e5/0x11e0
 tun_set_iff+0x532/0xef0
 __tun_chr_ioctl+0x788/0x1df0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff9eff8e9a9
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:00007ff9f0d12038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff9f01b6080 RCX: 00007ff9eff8e9a9
RDX: 0000200000000200 RSI: 00000000400454ca RDI: 000000000000000a
RBP: 00007ff9f0010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff9f01b6080 R15: 00007fffc931ce08
 </TASK>
sched: DL replenish lagged too much
