rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=637c/1/0x4000000000000000 softirq=27897/27898 fqs=4912
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1036698          0            0
rcu: 	cputime:    31077      21411           90   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=23597 q=2706 ncpus=2)
CPU: 0 UID: 0 PID: 8655 Comm: syz.1.832 Not tainted 6.17.0-rc1-syzkaller-00022-g07866544e410 #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:stack_depot_save_flags+0x1ab/0x860
Code: 02 00 00 31 f6 4c 89 54 24 18 e8 b0 2b c9 ff 4c 8b 54 24 18 8b 74 24 04 85 db 75 5d 4d 8b 3f 4d 39 e7 74 52 41 39 6f 10 75 f2 <45> 39 57 14 75 ec 31 c0 49 8b 0c c6 49 3b 4c c7 20 75 df 48 ff c0
RSP: 0000:ffffc900000076b8 EFLAGS: 00000246
RAX: ffff888135400000 RBX: 0000000000000801 RCX: 0000000000a09d60
RDX: 00000000e38cd97b RSI: 0000000000000001 RDI: 00000000ff105b18
RBP: 00000000366a09d6 R08: 0000000006947fac R09: 00000000f18247d3
R10: 000000000000000f R11: fffffbfff1f46fc7 R12: ffff888135e09d60
R13: 000000000000000f R14: ffffc90000007720 R15: ffff88811de8ac90
FS:  00007f942bdf66c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f942bdf5fc8 CR3: 000000012b0bc000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kasan_save_track+0x4f/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 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: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 5b 98 15 f6 e8 96 f2 4c f6 fb bf 01 00 00 00 <e8> 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0000:ffffc90004e67dc0 EFLAGS: 00000282
RAX: c6a759b2a7252c00 RBX: 0000000000000000 RCX: c6a759b2a7252c00
RDX: 0000000000000000 RSI: ffffffff8d9b6dc3 RDI: 0000000000000001
RBP: ffffc90004e67e70 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920009ccfb8
 irqentry_exit+0x6f/0x90
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:irqentry_exit_to_user_mode+0x51/0x120
Code: 07 85 c0 0f 85 c3 00 00 00 e8 3b 00 31 f6 65 4c 8b 34 25 08 40 a0 92 49 8b 3e f7 c7 1e 30 02 00 74 53 49 89 ff e8 2f ff 30 f6 <4c> 89 f8 a8 18 74 08 e8 63 1a 01 00 4c 89 f8 a9 00 10 00 00 74 0b
RSP: 0000:ffffc90004e67f38 EFLAGS: 00000286
RAX: c6a759b2a7252c00 RBX: ffffc90004e67f58 RCX: c6a759b2a7252c00
RDX: 0000000000000000 RSI: ffffffff8d9b6dc3 RDI: ffffffff8be33300
RBP: 0000000000000000 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88801eaa9cc0 R15: 0000000000000008
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0033:0x7f942db8ebf1
Code: 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 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:00007f942bdf6038 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007f942ddb6090 RCX: 00007f942db8ebe9
RDX: 00002000000006c0 RSI: 0000000000005452 RDI: 0000000000000007
RBP: 00007f942dc11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f942ddb6128 R14: 00007f942ddb6090 R15: 00007ffd01ad2938
 </TASK>
