rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=aaa4/1/0x4000000000000000 softirq=14035/14036 fqs=5245
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1070650          0            0
rcu: 	cputime:    25821      26667           99   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=7745 q=8048 ncpus=2)
CPU: 1 UID: 0 PID: 5952 Comm: syz.2.27 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:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 62 2c f8 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900001e0600 EFLAGS: 00000206
RAX: f669402f4597a200 RBX: 1ffff9200003c0c8 RCX: f669402f4597a200
RDX: 0000000000000003 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc900001e06f8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007fbee37ec6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000017c0 CR3: 000000010c1f6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 slab_free_after_rcu_debug+0x129/0x2a0
 rcu_core+0xca8/0x1710
 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:bad_range+0x0/0x2c0
Code: 0c 00 48 be 00 00 00 00 00 fc ff df 44 89 e2 e9 c3 fe ff ff e8 51 a4 57 09 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 30 48 89 74 24 10 48 89 fb
RSP: 0018:ffffc9000464f538 EFLAGS: 00000286
RAX: 1ffff11027fff11f RBX: ffff88813fff88f8 RCX: ffffffff82165499
RDX: 0000000000000000 RSI: ffffea00044eefc0 RDI: ffff88813fff8300
RBP: ffffc9000464f7b0 R08: ffff88813fff88ff R09: 1ffff11027fff11f
R10: dffffc0000000000 R11: ffffed1027fff120 R12: dffffc0000000000
R13: ffffea00044eefc0 R14: 0000000000000001 R15: ffffc9000464f81c
 get_page_from_freelist+0x21c2/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 vma_alloc_folio_noprof+0xe4/0x200
 folio_prealloc+0x30/0x180
 __handle_mm_fault+0x2c88/0x5620
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0x764/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0010:__put_user_4+0xd/0x20
Code: 66 89 01 31 c9 0f 1f 00 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 cb 48 c1 fb 3f 48 09 d9 0f 1f 00 <89> 01 31 c9 0f 1f 00 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000464fe50 EFLAGS: 00010206
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 00002000000017c0
RDX: 0000000000000000 RSI: ffffffff8db8655b RDI: ffffffff8be29f40
RBP: 0000000000000007 R08: 0000000000000000 R09: ffffffff820bc3d0
R10: dffffc0000000000 R11: ffffed1020e80c99 R12: 0000000000000000
R13: 00002000000017c0 R14: 0000000000000001 R15: 0000000000000002
 __sys_socketpair+0xb7/0x560
 __x64_sys_socketpair+0x9b/0xb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbee298e9a9
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:00007fbee37ec038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fbee2bb5fa0 RCX: 00007fbee298e9a9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: 00007fbee2a10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000017c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbee2bb5fa0 R15: 00007fffb5094578
 </TASK>
sched: DL replenish lagged too much
