rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=8e14/1/0x4000000000000000 softirq=16908/16909 fqs=2556
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   979176          0            0
rcu: 	cputime:    24359      26810           87   ==> 51180(ms)
rcu: 	(t=10501 jiffies g=8173 q=1707 ncpus=2)
CPU: 1 UID: 0 PID: 6648 Comm: syz.2.338 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-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:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 1a 2a 2d f6 48 89 df e8 72 c1 2d f6 e8 dd 92 56 f6 fb bf 01 00 00 00 <e8> 42 c1 1f f6 65 8b 05 1b f9 2e 07 85 c0 74 07 5b e9 81 4c 00 00
RSP: 0018:ffffc900001e0c90 EFLAGS: 00000286
RAX: 5dc273d16c1e1100 RBX: ffff888136625940 RCX: 5dc273d16c1e1100
RDX: 0000000000000002 RSI: ffffffff8d99873a RDI: 0000000000000001
RBP: ffffc900001e0e10 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888136625940
R13: 1ffff9200003c1ac R14: ffff888124c30410 R15: ffffc900001e0d60
FS:  00007fcf6f0de6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000005d8000 CR3: 0000000022c92000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __run_timer_base+0x60a/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:tracing_gen_ctx_irq_test+0xeb/0x160
Code: e8 da d9 fb ff 45 85 f6 41 0f 48 ed 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 48 89 c3 74 08 4c 89 ff e8 18 f9 5e 00 49 8b 07 <c1> e8 03 83 e0 02 09 c5 45 0f b6 f4 41 83 fe 0f 41 bc 0f 00 00 00
RSP: 0018:ffffc90007177288 EFLAGS: 00000246
RAX: 0000000000004002 RBX: dffffc0000000000 RCX: 0000000000000002
RDX: ffff888106a89cc0 RSI: 0000000080000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc9000717754f R09: 0000000000000000
R10: ffffc90007177540 R11: fffff52000e2eeaa R12: 0000000080000001
R13: 0000000000000000 R14: 0000000080000001 R15: ffff888106a89cc0
 perf_trace_buf_update+0x9f/0x220
 perf_tp_event+0xf6/0x1380
 perf_trace_run_bpf_submit+0xee/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 kmem_cache_alloc_node_noprof+0x47/0x3c0
 kmalloc_reserve+0xbd/0x290
 __alloc_skb+0x142/0x2d0
 kcm_sendmsg+0xa10/0x2a70
 __sock_sendmsg+0x21c/0x270
 sock_write_iter+0x258/0x330
 vfs_write+0x54b/0xa90
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcf6e18e9a9
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:00007fcf6f0de038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcf6e3b5fa0 RCX: 00007fcf6e18e9a9
RDX: 00000000fffffdef RSI: 0000200000000140 RDI: 000000000000000b
RBP: 00007fcf6e210d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcf6e3b5fa0 R15: 00007ffef2775018
 </TASK>
sched: DL replenish lagged too much
