rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (6945 ticks this GP) idle=cabc/1/0x4000000000000000 softirq=27084/27120 fqs=5204
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   809560        134            0
rcu: 	cputime:    34079      18409           62   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=23645 q=2427 ncpus=2)
CPU: 0 UID: 0 PID: 8642 Comm: syz.2.803 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:unwind_next_frame+0x12d6/0x2390
Code: 8b 7c 24 18 e8 cb 4a b0 00 48 8b 44 24 18 48 8b 10 48 c7 c7 60 3c 88 8b 89 de e8 15 cd b4 ff e9 43 06 00 00 49 89 d5 48 89 d5 <48> 89 d8 48 29 e8 48 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83
RSP: 0018:ffffc90000007398 EFLAGS: 00000287
RAX: ffffffff8fc021a8 RBX: ffffffff8fc021c0 RCX: ffffffff8fc021b0
RDX: ffffffff8fc02198 RSI: ffffffff90407ca2 RDI: ffffffff8be332a0
RBP: ffffffff8fc021b0 R08: 000000000000000b R09: ffffffff8172c195
R10: ffffc900000074b8 R11: ffffffff81ac3890 R12: ffffffff8222e59d
R13: ffffffff8fc021ac R14: ffffc90000007468 R15: ffffffff8fc021ac
FS:  00007f8a27ec26c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32724220 CR3: 000000011084a000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 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
 __netdev_alloc_skb+0x108/0x970
 hsr_init_skb+0xef/0x6e0
 send_hsr_supervision_frame+0x133/0xb30
 hsr_announce+0x1d5/0x360
 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:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 ab 86 4b f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> f3 2d 14 f6 65 8b 05 6c 71 24 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90003b6f6a0 EFLAGS: 00000206
RAX: 0e2c3ff5dc820700 RBX: 0000000000000a02 RCX: 0e2c3ff5dc820700
RDX: 0000000000000007 RSI: ffffffff8d9b6df1 RDI: 0000000000000001
RBP: ffffc90003b6f738 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: dffffc0000000000
R13: 0000000000000004 R14: ffffffff8e21dfc0 R15: 1ffff9200076ded4
 percpu_counter_destroy_many+0x23f/0x3e0
 __mmdrop+0x31b/0x580
 finish_task_switch+0x3ee/0x950
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__mutex_unlock_slowpath+0xff/0x760
Code: 17 88 a8 f6 4c 89 f8 48 c1 e8 03 48 89 44 24 28 42 80 3c 28 00 74 08 4c 89 ff e8 8c 85 a8 f6 4c 8d a4 24 a0 00 00 00 49 8b 07 <49> c7 c6 20 93 ab 99 49 c1 ee 03 48 c7 c3 74 af a3 8f 48 c1 eb 03
RSP: 0018:ffffc90003b6fbe0 EFLAGS: 00000246
RAX: ffff888107eb5640 RBX: ffff888106bd2c00 RCX: ffffffff8b7a98c9
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888106bd2c40
RBP: ffffc90003b6fcf0 R08: ffff888106bd2c47 R09: 1ffff11020d7a588
R10: dffffc0000000000 R11: ffffed1020d7a589 R12: ffffc90003b6fc80
R13: dffffc0000000000 R14: ffffc90003b6fc60 R15: ffff888106bd2c40
 __se_sys_perf_event_open+0x194c/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8a26f8ebe9
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:00007f8a27ec2038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f8a271b5fa0 RCX: 00007f8a26f8ebe9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007f8a27011e19 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8a271b6038 R14: 00007f8a271b5fa0 R15: 00007ffe9961d7b8
 </TASK>
