rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=e884/1/0x4000000000000000 softirq=61955/61958 fqs=5246
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   975715          0            0
rcu: 	cputime:    25119      27380           96   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=46993 q=3311 ncpus=2)
CPU: 1 UID: 0 PID: 16557 Comm: syz.4.4691 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a #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:napi_complete_done+0x495/0x7c0
Code: 51 62 69 f8 90 0f 0b 90 eb 8b 48 8b 9c 24 a0 00 00 00 48 89 de 48 83 e6 02 31 ff e8 15 67 69 f8 48 83 e3 02 0f 85 db 00 00 00 <48> 8b 5c 24 20 48 85 db 4c 8b 64 24 28 74 20 e8 17 62 69 f8 49 81
RSP: 0018:ffffc900001e08c0 EFLAGS: 00000246
RAX: ffffffff8956bb8b RBX: 0000000000000000 RCX: ffff888041c30000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e09d0 R08: ffffc900001e0967 R09: 1ffff9200003c12c
R10: dffffc0000000000 R11: fffff5200003c12d R12: 0000000000000011
R13: ffffc900001e0960 R14: ffff888021fd1070 R15: dffffc0000000000
FS:  00007f280090e6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000039c0 CR3: 0000000025082000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 e1000_clean+0xd0b/0x2b00
 __napi_poll+0xc7/0x480
 net_rx_action+0x707/0xe30
 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:__schedule+0x1a7/0x4d00
Code: 74 08 48 89 df e8 69 e0 b3 f6 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 50 e0 b3 f6 48 81 3b 9d 6e ac 57 <0f> 85 26 18 00 00 83 7c 24 70 00 7f 42 49 8d 5e 18 48 89 d8 48 c1
RSP: 0018:ffffc90003696a00 EFLAGS: 00000246
RAX: 1ffff920006d2000 RBX: ffffc90003690000 RCX: 289dce08b621b100
RDX: 0000000000000000 RSI: ffffffff8be29f60 RDI: ffffffff8be29f20
RBP: ffffc90003696c10 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88813663aac8
R13: dffffc0000000000 R14: ffff888041c30000 R15: ffff8881a3c1f000
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:prepare_alloc_pages+0x2fc/0x610
Code: 4c 89 f7 e8 f6 3c 0d 00 48 be 00 00 00 00 00 fc ff df 49 8b 16 48 85 d2 75 4f 4d 8d 74 24 08 4c 89 f0 48 c1 e8 03 0f b6 04 30 <84> c0 0f 85 d4 01 00 00 41 39 2e 77 32 48 83 c3 10 48 89 d8 48 c1
RSP: 0018:ffffc90003696d90 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffc90003696e40 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffffc90003696e60
RBP: 0000000000000003 R08: 0000000000000000 R09: ffffffff8215f69d
R10: ffffc90003696e40 R11: fffff520006d2dcd R12: ffff88813fff9980
R13: 0000000000000100 R14: ffff88813fff9988 R15: 1ffff920006d2dc8
 __alloc_frozen_pages_noprof+0x123/0x370
 alloc_pages_mpol+0x232/0x4a0
 vma_alloc_folio_noprof+0xe4/0x200
 folio_prealloc+0x30/0x180
 do_wp_page+0x1231/0x5800
 __handle_mm_fault+0x1144/0x5620
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0x764/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0010:rep_movs_alternative+0x54/0x90
Code: 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb c5 eb 05 c3 cc cc cc cc 48 8b 06 <48> 89 07 48 8d 47 08 48 83 e0 f8 48 29 f8 48 01 c7 48 01 c6 48 29
RSP: 0018:ffffc90003697658 EFLAGS: 00010206
RAX: 00020010000002e0 RBX: ffff888107d1c000 RCX: 0000000000000e88
RDX: 0000000000000000 RSI: ffff888107d1c000 RDI: 00002000000039c0
RBP: ffffc900036977b0 R08: ffff888107d1ce87 R09: 1ffff11020fa39d0
R10: dffffc0000000000 R11: ffffed1020fa39d1 R12: dffffc0000000000
R13: 0000000000000000 R14: 00007ffffffff000 R15: 0000000000000e88
 _copy_to_iter+0x484/0x16f0
 __skb_datagram_iter+0xf8/0x990
 skb_copy_datagram_iter+0xc5/0x230
 netlink_recvmsg+0x2ab/0xa30
 sock_recvmsg+0x22c/0x270
 ____sys_recvmsg+0x1c9/0x460
 ___sys_recvmsg+0x1b5/0x510
 __x64_sys_recvmsg+0x198/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f27ffb8eb69
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:00007f280090e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f27ffdb5fa0 RCX: 00007f27ffb8eb69
RDX: 0000000000000000 RSI: 0000200000000c40 RDI: 0000000000000009
RBP: 00007f27ffc11df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f27ffdb5fa0 R15: 00007ffed3506a18
 </TASK>
sched: DL replenish lagged too much
