rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10490 ticks this GP) idle=baf4/1/0x4000000000000000 softirq=21534/21538 fqs=4748
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1219630         10            0
rcu: 	cputime:    33318      19181           41   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=12837 q=34294 ncpus=2)
CPU: 1 UID: 0 PID: 6851 Comm: syz.5.327 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #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:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 9b d3 01 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc900001e0438 EFLAGS: 00000206
RAX: 8b3413f981c51500 RBX: 0000000000000000 RCX: 8b3413f981c51500
RDX: 0000000000000000 RSI: ffffffff8db8655b RDI: ffffffff8be29f40
RBP: ffffffff8172aae5 R08: 0000000000000000 R09: ffffffff8172aae5
R10: dffffc0000000000 R11: ffffffff81ad0050 R12: 0000000000000002
R13: ffffffff8e13f0e0 R14: 0000000000000000 R15: 0000000000000246
FS:  00007f57d79c96c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c24d9bf CR3: 0000000124a58000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 kmalloc_reserve+0xbd/0x290
 __alloc_skb+0x142/0x2d0
 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_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__schedule+0x4e/0x4d00
Code: 88 b0 30 07 48 89 84 24 c0 01 00 00 49 bd 00 00 00 00 00 fc ff df 48 8d bc 24 90 01 00 00 48 c7 84 24 00 01 00 00 b3 8a b5 41 <48> c7 84 24 08 01 00 00 05 21 a5 8d 48 c7 84 24 10 01 00 00 70 5f
RSP: 0018:ffffc900025ce940 EFLAGS: 00000282
RAX: 8b3413f981c51500 RBX: 0000000000000000 RCX: 8b3413f981c51500
RDX: 0000000000000007 RSI: ffffffff8d99883e RDI: ffffc900025cead0
RBP: ffffc900025ceb50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff920004b9d6c
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:arch_stack_walk+0x11c/0x150
Code: ff ff 4c 89 ff e8 e4 29 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3 2e e8 a0 d9 07 0a 84 c0 74 11 4c 89 ff e8 14 2b 09 00 <83> bd 78 ff ff ff 00 75 cf 65 48 8b 05 e3 90 36 11 48 3b 45 d8 75
RSP: 0018:ffffc900025cecc8 EFLAGS: 00000296
RAX: 00000000903ded01 RBX: ffffc900025ced80 RCX: 8b3413f981c51500
RDX: 0000000000000001 RSI: ffffffff8db8655b RDI: ffff88810830d640
RBP: ffffc900025ced50 R08: ffffc900025cf6b8 R09: 0000000000000000
R10: ffffc900025ced18 R11: fffff520004b9da5 R12: ffff88810830d640
R13: ffff88810985a2e0 R14: ffffffff81ad0050 R15: ffffc900025cecc8
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 __set_page_owner+0x25c/0x4a0
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 allocate_slab+0x8a/0x3b0
 ___slab_alloc+0xbfc/0x1480
 __kmalloc_noprof+0x305/0x4f0
 __d_alloc+0xb7/0x6f0
 d_alloc_parallel+0xe0/0x14e0
 __lookup_slow+0x116/0x3d0
 lookup_slow+0x53/0x70
 link_path_walk+0x935/0xea0
 __filename_parentat+0x246/0x670
 filename_create+0xcf/0x470
 do_mkdirat+0xa0/0x590
 __x64_sys_mkdir+0x6c/0x80
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f57d6b8e9a9
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:00007f57d79c9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f57d6db5fa0 RCX: 00007f57d6b8e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000000
RBP: 00007f57d6c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f57d6db5fa0 R15: 00007ffee7d75a28
 </TASK>
