rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=968c/1/0x4000000000000000 softirq=25402/25403 fqs=4727
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   918193          0            0
rcu: 	cputime:    24426      28043          101   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=18341 q=2718 ncpus=2)
CPU: 1 UID: 0 PID: 8612 Comm: syz.0.1178 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a #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_trace_consume_entry+0x0/0x280
Code: 75 0e 48 8d 65 f0 5b 41 5e 5d e9 9b 6e c4 09 cc e8 e5 92 c1 09 0f 1f 44 00 00 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 83 ec 18 48 ba 00 00
RSP: 0018:ffffc900001e07e0 EFLAGS: 00000282
RAX: ffffffff894b32ab RBX: ffffc900001e08a0 RCX: 040e458c3936ef00
RDX: 0000000000000001 RSI: ffffffff894b32ab RDI: ffffc900001e08a0
RBP: ffffc900001e0870 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: ffffffff81acf520 R12: ffff888108470000
R13: 0000000000000000 R14: ffffffff81acf520 R15: ffffc900001e07e8
FS:  00007ff6fff7f6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4212d81d38 CR3: 0000000121c10000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x110/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 rcu_core+0xca8/0x1710
 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:debug_smp_processor_id+0x0/0x20
Code: c7 c0 9f 1f 8e 4c 89 f6 e8 5d 29 88 f9 e9 66 ff ff ff cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 c7 c7 20 9f e2 8b 48 c7 c6 60 9f e2 8b eb 1c 66 66
RSP: 0018:ffffc9000400fdf0 EFLAGS: 00000282
RAX: ffffffff823c4266 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888108470000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff823c40c7
R10: ffff88801d2e2a20 R11: ffff88802b2a7d60 R12: ffff8881107e9048
R13: ffff8881107e9048 R14: ffffffff823c40c7 R15: 1ffff11004fc4981
 rcu_is_watching+0x15/0xb0
 fd_install+0x23f/0x540
 __sys_socketpair+0x4a9/0x560
 __x64_sys_socketpair+0x9b/0xb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff6ff18e9a9
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:00007ff6fff7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007ff6ff3b6080 RCX: 00007ff6ff18e9a9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 00007ff6ff210d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff6ff3b6080 R15: 00007ffc2e05ce38
 </TASK>
sched: DL replenish lagged too much
