rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=e32c/1/0x4000000000000000 softirq=40969/40969 fqs=5248
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1019199          0            0
rcu: 	cputime:    24551      27938           88   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=29725 q=3633 ncpus=2)
CPU: 1 UID: 0 PID: 10277 Comm: syz.4.1118 Not tainted 6.16.0-syzkaller-06600-g1dbf1d590d10 #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:arch_stack_walk+0x11c/0x150
Code: ff ff 4c 89 ff e8 d4 2c 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3 2e e8 10 04 09 0a 84 c0 74 11 4c 89 ff e8 04 2e 09 00 <83> bd 78 ff ff ff 00 75 cf 65 48 8b 05 b3 61 30 11 48 3b 45 d8 75
RSP: 0018:ffffc900001e07e8 EFLAGS: 00000292
RAX: 0000000090b51d01 RBX: ffffc900001e08a0 RCX: 5d38987f780e1400
RDX: 0000000000000003 RSI: ffffffff8d9792e3 RDI: ffffffff8be30a00
RBP: ffffc900001e0870 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffff888033a1b980
R13: 0000000000000000 R14: ffffffff81ac3450 R15: ffffc900001e07e8
FS:  00007f535cc7a6c0(0000) GS:ffff8881a3c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000003333e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 6b dd 54 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> 13 b6 1d f6 65 8b 05 0c a0 27 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90007a479e0 EFLAGS: 00000206
RAX: 5d38987f780e1400 RBX: 0000000000000a06 RCX: 5d38987f780e1400
RDX: 0000000000000007 RSI: ffffffff8d9792e3 RDI: 0000000000000001
RBP: ffffc90007a47a68 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: dffffc0000000000
R13: ffff888034702000 R14: ffffffff99c649a0 R15: 1ffff92000f48f3c
 debug_check_no_obj_freed+0x451/0x470
 __free_frozen_pages+0x509/0xe70
 __slab_free+0x326/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 security_inode_alloc+0x39/0x330
 inode_init_always_gfp+0x9ed/0xdc0
 alloc_inode+0x82/0x1b0
 __sock_create+0x12d/0x9f0
 __sys_socketpair+0x1c5/0x560
 __x64_sys_socketpair+0x9b/0xb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f535bd8ebe9
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:00007f535cc7a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f535bfb6090 RCX: 00007f535bd8ebe9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001
RBP: 00007f535be11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f535bfb6128 R14: 00007f535bfb6090 R15: 00007ffc9347c358
 </TASK>
sched: DL replenish lagged too much
