rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10475 ticks this GP) idle=f444/1/0x4000000000000000 softirq=34776/35045 fqs=4948
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   968329        785            0
rcu: 	cputime:    33634      18841           50   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=26053 q=1838 ncpus=2)
CPU: 0 UID: 0 PID: 10199 Comm: syz.5.1314 Not tainted 6.17.0-rc1-syzkaller-00022-g07866544e410-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 eb e3 02 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:ffffc90000007478 EFLAGS: 00000206
RAX: a24b2360f7838300 RBX: 0000000000000000 RCX: a24b2360f7838300
RDX: 0000000000000000 RSI: ffffffff8dba603a RDI: ffffffff8be33300
RBP: ffffffff8172c195 R08: 0000000000000000 R09: ffffffff8172c195
R10: ffffc90000007638 R11: ffffffff81ac3890 R12: 0000000000000002
R13: ffffffff8e139ee0 R14: 0000000000000000 R15: 0000000000000246
FS:  00007faa93bf56c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c04322ee08 CR3: 0000000027a8a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000090602
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
 __alloc_skb+0x112/0x2d0
 new_skb+0x2f/0x2b0
 aoecmd_cfg+0x28b/0x7c0
 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:__memcg_slab_free_hook+0x2a4/0x3d0
Code: 00 00 00 00 4d 01 ec 4c 89 e3 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 e7 e8 40 de f7 ff 49 8b 2c 24 <48> 85 ed 0f 84 82 fe ff ff 48 b8 00 00 00 00 00 fc ff df 80 3c 03
RSP: 0018:ffffc9000369f6d0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff11021fc64f6 RCX: 000000000000000b
RDX: 00000000fffff538 RSI: ffffea0004820c00 RDI: ffffc9000369f770
RBP: 0000000000000000 R08: ffff88810fe32780 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: ffff88810fe327b0
R13: ffff88810fe32780 R14: 0000000000000000 R15: ffffea0004820c00
 kmem_cache_free+0x223/0x400
 finish_task_switch+0x3ee/0x950
 __schedule+0x17a0/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 try_to_wake_up+0x82b/0x12b0
 wake_up_q+0x85/0xd0
 futex_wake+0x4a0/0x560
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faa92d8ebe9
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:00007faa93bf50e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007faa92fb5fa8 RCX: 00007faa92d8ebe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007faa92fb5fac
RBP: 00007faa92fb5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007faa92fb6038 R14: 00007ffdd694b150 R15: 00007ffdd694b238
 </TASK>
