rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10500 ticks this GP) idle=76e4/1/0x4000000000000000 softirq=14289/14289 fqs=0
rcu: 	(t=10500 jiffies g=6269 q=1413 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g6269 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=1927
rcu: rcu_preempt kthread starved for 10501 jiffies! g6269 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:27184 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
CPU: 1 UID: 0 PID: 6079 Comm: syz.0.82 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:do_raw_write_lock+0x7d/0x260
Code: 4c 24 20 48 c1 e9 03 48 b8 f1 f1 f1 f1 04 f3 f3 f3 48 89 4c 24 18 4a 89 04 39 4c 8d 77 08 4c 89 f0 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 72 01 00 00 41 81 3e ed 1e af de 0f 85 18 01 00 00 4c
RSP: 0018:ffffc900001e0a00 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffff88802f348568 RCX: 1ffff9200003c144
RDX: 0000000000000000 RSI: ffffffff8db8655b RDI: ffff88802f348568
RBP: ffffc900001e0ab0 R08: 0000000000000000 R09: ffffffff8a2332f2
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffc900001e0b20
R13: 1ffff11005e690eb R14: ffff88802f348570 R15: dffffc0000000000
FS:  00007f33b74876c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f33b7486fc8 CR3: 00000000222a2000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 addrconf_rs_timer+0x372/0x670
 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_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 cb 8e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 13 bd 1f f6 65 8b 05 bc e9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90004bbefe0 EFLAGS: 00000206
RAX: 6cf37b29ebbe9b00 RBX: 0000000000000a06 RCX: 6cf37b29ebbe9b00
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc90004bbf078 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff8e8e2670 R15: 1ffff92000977dfc
 stack_depot_save_flags+0x429/0x900
 save_stack+0x103/0x1f0
 __set_page_owner+0x8d/0x4a0
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 alloc_pages_noprof+0xa9/0x190
 stack_depot_save_flags+0x7a3/0x900
 kasan_save_track+0x4f/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 tcp_send_fin+0x1be/0xc80
 __tcp_close+0x50c/0xde0
 tcp_close+0x28/0x110
 inet_release+0x144/0x190
 sock_release+0x85/0x150
 smc_clcsock_release+0xc9/0xf0
 __smc_release+0x66b/0x7e0
 smc_release+0x2ce/0x540
 sock_close+0xc3/0x240
 __fput+0x44c/0xa70
 fput_close_sync+0x119/0x200
 __x64_sys_close+0x7f/0x110
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f33b658e9a9
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:00007f33b7487038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f33b67b6080 RCX: 00007f33b658e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007f33b6610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f33b67b6080 R15: 00007ffd59397698
 </TASK>
sched: DL replenish lagged too much
