rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=1294/1/0x4000000000000000 softirq=21098/21098 fqs=4557
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   852290          1            0
rcu: 	cputime:    29057      23421          112   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=8209 q=3342 ncpus=2)
CPU: 0 UID: 0 PID: 6022 Comm: syz.0.41 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:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 62 2c f8 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007540 EFLAGS: 00000206
RAX: 0bdbdf25e4d12400 RBX: 1ffff92000000eb0 RCX: 0bdbdf25e4d12400
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc90000007640 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
FS:  00007ff99d3e86c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557c2c4808 CR3: 000000010e0d6000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __rcu_read_unlock+0x84/0xe0
 is_module_text_address+0x190/0x1e0
 kernel_text_address+0x94/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 wg_packet_send_keepalive+0x65/0x2c0
 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:raw_spin_rq_unlock_irq+0x13/0x90
Code: cc e8 c1 72 db 09 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 66 90 e8 14 00 de 09 e8 bf 9f 34 00 fb 5b <41> 5e 41 5f e9 44 4e de 09 cc f3 0f 1e fa 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc90003d6ef08 EFLAGS: 00000286
RAX: 0bdbdf25e4d12400 RBX: ffff88801f488780 RCX: 0bdbdf25e4d12400
RDX: 0000000000000007 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc90003d6f130 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88801f488000
R13: dffffc0000000000 R14: ffff88801f488000 R15: ffff88804b039fc0
 __schedule+0x1948/0x4d00
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_next_frame+0xd/0x2390
Code: 92 48 89 df e8 d4 a1 b0 00 eb 88 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 <53> 48 81 ec 98 00 00 00 49 89 fe 48 bd 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc90003d6f2b8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90003d6f3a0 RCX: 0bdbdf25e4d12400
RDX: dffffc0000000000 RSI: ffffffff825d0fe2 RDI: ffffc90003d6f2e8
RBP: ffffc90003d6f370 R08: ffffc90003d6f3b0 R09: 0000000000000009
R10: ffffc90003d6f338 R11: ffffffff81ad0050 R12: ffff88801f488000
R13: 1ffff920007ade88 R14: ffffffff81ad0050 R15: ffffc90003d6f2e8
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xc71/0xe70
 __put_partials+0x161/0x1c0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2f7/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 __kernfs_new_node+0xd7/0x7e0
 kernfs_new_node+0x102/0x210
 __kernfs_create_file+0x4b/0x2e0
 cgroup_addrm_files+0x7f2/0xb20
 css_populate_dir+0x396/0x3d0
 cgroup_mkdir+0xc20/0xe60
 kernfs_iop_mkdir+0x211/0x350
 vfs_mkdir+0x306/0x510
 do_mkdirat+0x247/0x590
 __x64_sys_mkdir+0x6c/0x80
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff99c58e9a9
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:00007ff99d3e8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007ff99c7b6080 RCX: 00007ff99c58e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000000
RBP: 00007ff99c610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff99c7b6080 R15: 00007ffe61083ba8
 </TASK>
sched: DL replenish lagged too much
