rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=e1dc/1/0x4000000000000000 softirq=17928/17928 fqs=4799
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1026231          0            0
rcu: 	cputime:    23732      28756           84   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=9345 q=2703 ncpus=2)
CPU: 0 UID: 0 PID: 6677 Comm: syz.0.351 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:unwind_get_return_address+0x29/0x90
Code: 90 f3 0f 1e fa 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 4c 83 3b 00 <74> 3a 48 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89
RSP: 0018:ffffc900000077e8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffc90000007808 RCX: fcc30ed243c38200
RDX: 0000000000000000 RSI: ffffffff8d9986f9 RDI: ffffc90000007808
RBP: ffffc90000007890 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888110509cc0
R13: ffffffff81a8b724 R14: dffffc0000000000 R15: ffffc90000007808
FS:  00007f46f5e1f6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f46f5e1efc8 CR3: 000000001edb0000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000082 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 slab_free_after_rcu_debug+0x129/0x2a0
 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:filter_irq_stacks+0x40/0xa0
Code: f4 31 db 49 bd 00 00 00 00 00 fc ff df 49 89 ff 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 64 40 76 00 49 8b 04 de <48> 3d 30 02 00 81 0f 93 c1 48 3d 70 16 00 81 0f 92 c2 84 d1 75 27
RSP: 0018:ffffc90002edf948 EFLAGS: 00000246
RAX: ffffffff8223089e RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000dc0 RSI: 000000000000000c RDI: ffffc90002edf9f0
RBP: ffffc90002edfc18 R08: 0000000000000000 R09: ffffffff81cf0976
R10: ffffc90002edf8f8 R11: ffffffff81acf520 R12: 000000000000000c
R13: dffffc0000000000 R14: ffffc90002edf9f0 R15: ffffc90002edf9f0
 stack_depot_save_flags+0x40/0x900
 kasan_save_track+0x4f/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 security_file_alloc+0x34/0x330
 init_file+0x93/0x2f0
 alloc_empty_file+0x6e/0x1d0
 alloc_file_pseudo+0x13d/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: 0033:0x7f46f4f8e9a9
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:00007f46f5e1f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f46f51b6080 RCX: 00007f46f4f8e9a9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000001e
RBP: 00007f46f5010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f46f51b6080 R15: 00007ffda6489de8
 </TASK>
sched: DL replenish lagged too much
