rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=b5bc/1/0x4000000000000000 softirq=14126/14126 fqs=5248
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   997891          0            0
rcu: 	cputime:    24026      28453           89   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=6825 q=2771 ncpus=2)
CPU: 0 UID: 0 PID: 5922 Comm: syz.0.11 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:stack_trace_consume_entry+0x38/0x280
Code: 48 83 ec 18 48 ba 00 00 00 00 00 fc ff df 4c 8d 47 10 4c 89 c5 48 c1 ed 03 0f b6 44 15 00 84 c0 0f 85 09 01 00 00 44 8b 4f 10 <4c> 8d 77 08 4d 89 f5 49 c1 ed 03 41 0f b6 44 15 00 84 c0 0f 85 22
RSP: 0018:ffffc90000007758 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90000007860 RCX: c86dbc4c14b2c700
RDX: dffffc0000000000 RSI: ffffffff81000130 RDI: ffffc90000007860
RBP: 1ffff92000000f0e R08: ffffc90000007870 R09: 0000000000000010
R10: dffffc0000000000 R11: ffffffff81acf520 R12: ffff888109339cc0
R13: 0000000000000000 R14: ffffffff81acf520 R15: ffffc900000077a8
FS:  00007f463bfd56c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f463bfd4fc8 CR3: 000000010b6f4000 CR4: 00000000000006f0
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
 dst_destroy+0x235/0x350
 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:kmem_cache_alloc_noprof+0xef/0x3c0
Code: 00 00 41 83 fc ff 74 1a 48 8b 03 48 83 f8 ff 0f 84 d3 02 00 00 48 c1 e8 3a 41 39 c4 0f 85 5d 01 00 00 41 8b 46 28 4a 8b 1c 28 <49> 8d 4f 08 49 8b 36 4c 89 e8 4c 89 fa 65 48 0f c7 0e 74 5c eb 95
RSP: 0018:ffffc9000434fd20 EFLAGS: 00000246
RAX: 0000000000000800 RBX: ffff88802fd1c400 RCX: ffffffff92a21940
RDX: 0000000000000000 RSI: 0000000000001000 RDI: ffffffff8e260740
RBP: 0000000000000cc0 R08: 0000000000000000 R09: ffffffff8215f69d
R10: ffffc9000434fe00 R11: fffff52000869fc2 R12: 00000000ffffffff
R13: ffff88802fd1b300 R14: ffff88801b68f640 R15: 0000000000080428
 getname_flags+0xb8/0x540
 do_sys_openat2+0xbc/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f463e18d4d0
Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 49 94 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 9c 94 02 00 8b 44
RSP: 002b:00007f463bfd4f10 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f463e18d4d0
RDX: 0000000000000000 RSI: 00007f463bfd4fa0 RDI: 00000000ffffff9c
RBP: 00007f463bfd4fa0 R08: 0000000000000000 R09: 00007f463bfd4cd6
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f463e3b6080 R15: 00007fffa3564678
 </TASK>
sched: DL replenish lagged too much
