rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=1084/1/0x4000000000000000 softirq=23034/23034 fqs=5249
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   976058          0            0
rcu: 	cputime:    24202      28296           92   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=14781 q=2393 ncpus=2)
CPU: 0 UID: 0 PID: 7764 Comm: syz.2.570 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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:unwind_next_frame+0x0/0x2390
Code: 09 cc 89 d9 80 e1 07 80 c1 03 38 c1 7c 92 48 89 df e8 d4 a1 b0 00 eb 88 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 81 ec 98 00 00 00 49
RSP: 0018:ffffc900000077e0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc900000078a0 RCX: f3930a6654809d00
RDX: dffffc0000000000 RSI: ffffffff8218869f RDI: ffffc900000077e8
RBP: ffffc90000007870 R08: ffffc900000078b0 R09: 0000000000000003
R10: dffffc0000000000 R11: ffffffff81ad0050 R12: ffff888024468000
R13: 0000000000000000 R14: ffffffff81ad0050 R15: ffffc900000077e8
FS:  00007f30567796c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001b00 CR3: 000000003ad54000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/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
 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:__local_bh_enable_ip+0x135/0x1c0
Code: 8b e8 8f 02 e9 09 65 66 8b 05 6f 5f 1a 11 66 85 c0 75 5a bf 01 00 00 00 e8 a8 32 0b 00 e8 33 04 42 00 fb 65 8b 05 4b 5f 1a 11 <85> c0 75 05 e8 82 f5 ad ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc900025ff7a0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 0000000000000201 RCX: f3930a6654809d00
RDX: 0000000000000000 RSI: ffffffff8d998940 RDI: ffffffff8be29f40
RBP: ffffc900025ff830 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: ffffffff89945f6f
R13: 1ffff1102015c02b R14: dffffc0000000000 R15: 1ffff920004bfef4
 netlink_insert+0x106f/0x1370
 netlink_autobind+0x22e/0x300
 netlink_sendmsg+0x523/0xb30
 __sock_sendmsg+0x21c/0x270
 sock_write_iter+0x258/0x330
 vfs_write+0x54b/0xa90
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f305598e9a9
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:00007f3056779038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3055bb6080 RCX: 00007f305598e9a9
RDX: 000000000000fe33 RSI: 0000200000000580 RDI: 0000000000000009
RBP: 00007f3055a10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3055bb6080 R15: 00007ffdd31af748
 </TASK>
sched: DL replenish lagged too much
