rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10385 ticks this GP) idle=7bbc/1/0x4000000000000000 softirq=14072/14072 fqs=5250
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   948169          0            0
rcu: 	cputime:    26450      26049          113   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=7377 q=3206 ncpus=2)
CPU: 1 UID: 0 PID: 5954 Comm: syz.1.26 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:cache_from_obj+0x0/0x140
Code: c8 49 89 c5 e9 ad fc ff ff 90 0f 0b 90 e9 2f ff ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <41> 57 41 56 53 66 90 48 89 f8 5b 41 5e 41 5f c3 cc cc cc cc cc f3
RSP: 0018:ffffc900001e0b88 EFLAGS: 00000286
RAX: 3d84a320b5923500 RBX: ffff88803ab5c7e0 RCX: ffff888028595640
RDX: 0000000000000100 RSI: ffff88803ab5c7e0 RDI: ffff88801b68f280
RBP: ffffc900001e0e30 R08: 0000000000000000 R09: ffffffff81a8c254
R10: dffffc0000000000 R11: ffffffff8473a3e0 R12: ffffffff8473a3e0
R13: ffffffff81a8c254 R14: 1ffff1100756b8fd R15: ffff88803ab5c7e8
FS:  00007f7b2e52f6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000f000 CR3: 0000000028efc000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 kmem_cache_free+0x27/0x400
 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:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900049572c0 EFLAGS: 00000282
RAX: 3d84a320b5923500 RBX: 0000000000000000 RCX: 3d84a320b5923500
RDX: 0000000000000000 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90004957360 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200092ae58
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule+0x75/0xc0
Code: 49 be 00 00 00 00 00 fc ff df 4a 89 04 33 65 8b 05 00 5f 30 07 a9 ff ff ff 7f 75 15 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 <f6> 44 24 21 02 75 2d 48 c7 04 24 0e 36 e0 45 4a c7 04 33 00 00 00
RSP: 0018:ffffc90004957420 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff9200092ae84 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8d998836 RDI: 00000000ffffffff
RBP: ffffc90004957498 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffffffff8e1444c0 R14: dffffc0000000000 R15: 1ffff9200092aea0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0xfd/0x110
 rcu_preempt_deferred_qs_irqrestore+0x851/0xc40
 rcu_read_unlock_special+0x3fe/0x4c0
 __rcu_read_unlock+0x84/0xe0
 is_bpf_text_address+0x292/0x2b0
 kernel_text_address+0xa5/0xe0
 __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_lru_noprof+0x1c6/0x3d0
 __d_alloc+0x31/0x6f0
 d_alloc_pseudo+0x1f/0xb0
 alloc_file_pseudo+0xcc/0x210
 sock_alloc_file+0xb8/0x2e0
 __sys_socketpair+0x387/0x560
 __x64_sys_socketpair+0x9b/0xb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7b2d78e9a9
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:00007f7b2e52f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f7b2d9b6080 RCX: 00007f7b2d78e9a9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: 00007f7b2d810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000180 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7b2d9b6080 R15: 00007ffd963cd7c8
 </TASK>
sched: DL replenish lagged too much
