hrtimer: interrupt took 37682 ns
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 2003790820 wd_nsec: 2003790846
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=78b4/1/0x4000000000000000 softirq=13833/13833 fqs=4560
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1021242          0            0
rcu: 	cputime:    25565      26904           92   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=5429 q=941 ncpus=2)
CPU: 0 UID: 0 PID: 5902 Comm: syz.2.8 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:skb_release_head_state+0x0/0x250
Code: 86 b1 71 f8 e9 d0 fd ff ff 49 ff ce e8 79 b1 71 f8 4c 89 f3 e9 c0 fd ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 89 fb 49 bc 00 00 00
RSP: 0018:ffffc900000075f8 EFLAGS: 00000246
RAX: ffffffff894e7499 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff888105fdb980 RSI: 0000000000000000 RDI: ffff888029695200
RBP: ffffc90000007790 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffff110052d2a40
R13: 0000000000000001 R14: ffff888029695200 R15: 0000000000000000
FS:  00007f87bf6d36c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0764c02000 CR3: 0000000118432000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 kfree_skb_list_reason+0x21b/0x460
 __dev_queue_xmit+0x2148/0x3a70
 lapb_data_transmit+0x90/0xb0
 lapb_transmit_buffer+0x163/0x200
 lapb_t1timer_expiry+0x699/0xab0
 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_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 5b 22 21 f6 e8 96 f5 57 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900034ae7e0 EFLAGS: 00000282
RAX: 87ce48c0533a3900 RBX: 0000000000000000 RCX: 87ce48c0533a3900
RDX: 0000000000000006 RSI: ffffffff8d998701 RDI: 0000000000000001
RBP: ffffc900034ae880 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000695cfc
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:stack_depot_save_flags+0x4/0x900
Code: 48 c7 c7 50 26 8e 8e 48 89 da e8 57 6f 00 00 eb d9 0f 1f 44 00 00 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 83 ec 40 65 48 8b 05 16 b3 a9 0d
RSP: 0018:ffffc900034ae948 EFLAGS: 00000246
RAX: 0000000000000015 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000015 RDI: ffffc900034ae950
RBP: ffffc900034aeb78 R08: 0000000000000000 R09: ffffffff81cf0976
R10: ffffc900034ae858 R11: ffffffff81acf520 R12: dffffc0000000000
R13: 1ffff92000695d84 R14: 0000000000000000 R15: ffffc900034ae950
 kasan_save_stack+0x4d/0x60
 kasan_record_aux_stack+0xbd/0xd0
 call_rcu+0x157/0x9c0
 kernfs_put+0x19e/0x480
 kernfs_remove_by_name_ns+0xb7/0x130
 sysfs_remove_group+0xfc/0x2c0
 sysfs_remove_groups+0x54/0xb0
 device_remove_attrs+0x1aa/0x260
 device_del+0x509/0x8e0
 unregister_netdevice_many_notify+0x1d52/0x2320
 rtnl_dellink+0x488/0x710
 rtnetlink_rcv_msg+0x7cf/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f87be78eb69
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:00007f87bf6d3038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f87be9b5fa0 RCX: 00007f87be78eb69
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 000000000000000c
RBP: 00007f87be811df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f87be9b5fa0 R15: 00007fff88ea32a8
 </TASK>
sched: DL replenish lagged too much
