rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10492 ticks this GP) idle=d37c/1/0x4000000000000000 softirq=15910/15920 fqs=4875
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1080494         39            0
rcu: 	cputime:    24685      27793           88   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=8921 q=3742 ncpus=2)
CPU: 1 UID: 0 PID: 6178 Comm: syz.3.52 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:debug_check_no_obj_freed+0x92/0x470
Code: 05 ff 0f 00 00 48 3d 00 10 00 00 0f 83 9a 00 00 00 44 3b 35 d8 76 da 0a 7e 07 44 89 35 cf 76 da 0a 80 3d c0 33 16 15 00 75 54 <83> 3d ff 2c c5 09 00 74 4b c6 05 ae 33 16 15 01 48 c7 c0 10 f3 bb
RSP: 0018:ffffc900001e07b8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: 00000000ffffffff
RBP: 0000000000212110 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88802f813000
R13: ffff88802f812cc0 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f58ba1fe6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa36f838270 CR3: 0000000029b44000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 kmem_cache_free+0x113/0x400
 skb_release_data+0x62d/0x7c0
 __kfree_skb+0x55/0x70
 tcp_write_queue_purge+0x143/0x2f0
 tcp_done_with_error+0x43/0xd0
 tcp_retransmit_timer+0x1d16/0x3370
 tcp_write_timer+0x162/0x2e0
 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:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 0f 1a df 09 e8 ba b9 35 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90002b8f958 EFLAGS: 00000282
RAX: 0ac26ebff8d4a000 RBX: 0000000000000000 RCX: 0ac26ebff8d4a000
RDX: 0000000000000000 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc90002b8f9b0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888025081cc0
R13: dffffc0000000000 R14: ffff888025080000 R15: ffff88813663ab98
 __schedule+0x16fd/0x4d00
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:d_alloc_pseudo+0x6/0xb0
Code: c1 03 38 c1 7c 9a 4c 89 f7 e8 d6 fb e8 ff eb 90 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 <41> 56 53 48 89 f3 49 89 fe e8 9c d8 85 ff 4c 89 f7 48 89 de e8 d1
RSP: 0018:ffffc90002b8fd50 EFLAGS: 00000246
RAX: 0000000000000005 RBX: dffffc0000000000 RCX: ffff888025081cc0
RDX: 0000000000000000 RSI: ffffc90002b8fda0 RDI: ffff88801a504000
RBP: ffffc90002b8fe30 R08: ffffffff8c921ba0 R09: 1ffff1100413cb98
R10: dffffc0000000000 R11: ffffed100413cb99 R12: ffff88801d2e2a20
R13: ffffffff8f633e90 R14: 1ffff92000571fb0 R15: ffff88801a504000
 alloc_file_pseudo+0xcc/0x210
 sock_alloc_file+0xb8/0x2e0
 __sys_socket+0x13d/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f58b938e9a9
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:00007f58ba1fe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f58b95b6080 RCX: 00007f58b938e9a9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000000a
RBP: 00007f58b9410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f58b95b6080 R15: 00007ffe2dcc6b28
 </TASK>
sched: DL replenish lagged too much
