rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=1f54/1/0x4000000000000000 softirq=19781/19905 fqs=4585
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   733777        484            0
rcu: 	cputime:    30755      21732          138   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=13037 q=2355 ncpus=2)
CPU: 1 UID: 0 PID: 7362 Comm: syz.1.670 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:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4a 35 2d f6 48 89 df e8 a2 cc 2d f6 e8 0d 9e 56 f6 fb bf 01 00 00 00 <e8> 72 cc 1f f6 65 8b 05 1b f9 2e 07 85 c0 74 07 5b e9 81 4c 00 00
RSP: 0018:ffffc900001e0c90 EFLAGS: 00000286
RAX: c2bb4a141fc6d500 RBX: ffff888136625940 RCX: c2bb4a141fc6d500
RDX: 0000000000000003 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc900001e0e10 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888136625940
R13: 1ffff9200003c1ac R14: ffffffff99e466c0 R15: ffffc900001e0d60
FS:  00007f209313e6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000002a8000 CR3: 00000000294f8000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __run_timer_base+0x60a/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 8b 2d 21 f6 e8 c6 00 58 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:ffffc90002def0a0 EFLAGS: 00000286
RAX: c2bb4a141fc6d500 RBX: 0000000000000000 RCX: c2bb4a141fc6d500
RDX: 0000000000000007 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90002def140 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005bde14
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__rcu_read_lock+0x5/0x60
Code: 00 e9 cc fa ff ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 53 <65> 48 8b 1c 25 08 10 a0 92 48 81 c3 44 04 00 00 48 89 d8 48 c1 e8
RSP: 0018:ffffc90002def208 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8172d388 RCX: 0000000000000001
RDX: ffffc90002def3d8 RSI: dffffc0000000000 RDI: ffffc90002def348
RBP: dffffc0000000000 R08: ffffc90002def301 R09: 0000000000000000
R10: ffffc90002def348 R11: fffff520005bde75 R12: 1ffff920005bde69
R13: ffffc90002def380 R14: ffffc90002def348 R15: ffffc90002def2e8
 unwind_next_frame+0x9e/0x2390
 __unwind_start+0x5b9/0x760
 arch_stack_walk+0xe4/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xc71/0xe70
 __put_partials+0x161/0x1c0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2f7/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 kcm_sendmsg+0xa10/0x2a70
 __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: 0033:0x7f209238e9a9
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:00007f209313e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f20925b6080 RCX: 00007f209238e9a9
RDX: 00000000fffffdef RSI: 0000200000000140 RDI: 000000000000000b
RBP: 00007f2092410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f20925b6080 R15: 00007ffc3b836f78
 </TASK>
sched: DL replenish lagged too much
