rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=1a74/1/0x4000000000000000 softirq=28108/28109 fqs=4619
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   993288          0            0
rcu: 	cputime:    24148      28331          136   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=16525 q=26963 ncpus=2)
CPU: 1 UID: 0 PID: 8073 Comm: syz.4.798 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:__local_bh_enable_ip+0x13e/0x1c0
Code: 05 df 5f 1a 11 66 85 c0 75 5a bf 01 00 00 00 e8 e8 27 0b 00 e8 73 f9 41 00 fb 65 8b 05 bb 5f 1a 11 85 c0 75 05 e8 f2 f5 ad ff <48> c7 04 24 0e 36 e0 45 4b c7 04 37 00 00 00 00 65 48 8b 05 8a 5f
RSP: 0018:ffffc900001e0b00 EFLAGS: 00000202
RAX: 0000000000000101 RBX: 0000000000000201 RCX: a3183dcaa2573500
RDX: 0000000000000002 RSI: ffffffff8d998701 RDI: ffffffff8be29f80
RBP: ffffc900001e0b90 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff81ae20de
R13: ffff888028a36c30 R14: dffffc0000000000 R15: 1ffff9200003c160
FS:  00007ff112bf66c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff112bd4fc8 CR3: 000000003d486000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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 9b 93 56 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> e3 c1 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90001bafa60 EFLAGS: 00000206
RAX: a3183dcaa2573500 RBX: 0000000000000a02 RCX: a3183dcaa2573500
RDX: 0000000000000007 RSI: ffffffff8d998701 RDI: 0000000000000001
RBP: ffffc90001bafae8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffff88810ea38000 R14: ffffffff99d99d10 R15: 1ffff92000375f4c
 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_lru_noprof+0x1c6/0x3d0
 sock_alloc_inode+0x28/0xc0
 alloc_inode+0x6a/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: 0033:0x7ff114d8eb69
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:00007ff112bf6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007ff114fb6080 RCX: 00007ff114d8eb69
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 00007ff114e11df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff114fb6080 R15: 00007ffcf0a1f938
 </TASK>
sched: DL replenish lagged too much
