rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=8d64/1/0x4000000000000000 softirq=14791/14792 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1039858          0            0
rcu: 	cputime:    24100      28389           84   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=6517 q=2566 ncpus=2)
CPU: 0 UID: 0 PID: 6212 Comm: syz.0.139 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-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:seqcount_lockdep_reader_access+0x17e/0x1c0
Code: 00 4d 85 e4 75 16 e8 a1 5f 11 00 eb 15 e8 9a 5f 11 00 e8 f5 ca bf 09 4d 85 e4 74 ea e8 8b 5f 11 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 66 43 c7 44 3e 09 00 00 43 c6 44 3e 0b 00
RSP: 0018:ffffc90000007b80 EFLAGS: 00000246
RAX: ffffffff81aebe35 RBX: 0000000000000000 RCX: ffff888020e8d640
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007c20 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000200
R13: dffffc0000000000 R14: 1ffff92000000f70 R15: dffffc0000000000
FS:  00007f97aa64b6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003ff6 CR3: 0000000028a74000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 ktime_get+0x3e/0x1f0
 mac80211_hwsim_beacon+0x15c/0x1c0
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_run_softirq+0x187/0x2b0
 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:stack_trace_consume_entry+0x0/0x280
Code: 75 0e 48 8d 65 f0 5b 41 5e 5d e9 9b 6e c4 09 cc e8 e5 92 c1 09 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 ba 00 00
RSP: 0018:ffffc9000495ef20 EFLAGS: 00000282
RAX: ffffffff8183bbbc RBX: ffffc9000495efe0 RCX: b600529a0b08ad00
RDX: 0000000000000001 RSI: ffffffff8183bbbc RDI: ffffc9000495efe0
RBP: ffffc9000495efb0 R08: ffffc9000495f9f0 R09: 0000000000000000
R10: ffffc9000495ef78 R11: ffffffff81acf520 R12: ffff888020e8d640
R13: ffff8880273e7d80 R14: ffffffff81acf520 R15: ffffc9000495ef28
 arch_stack_walk+0x110/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 ptlock_alloc+0x20/0x70
 pte_alloc_one+0x7d/0x170
 __pte_alloc+0x25/0x1a0
 copy_pmd_range+0x68e6/0x7000
 copy_page_range+0xc46/0x1270
 dup_mmap+0xf57/0x1ac0
 copy_mm+0x13c/0x4b0
 copy_process+0x16d3/0x3b80
 kernel_clone+0x21e/0x870
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f97a978e9a9
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:00007f97aa64afe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f97a99b5fa0 RCX: 00007f97a978e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f97a9810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f97a99b5fa0 R15: 00007fff5774d048
 </TASK>
sched: DL replenish lagged too much
