clocksource: Long readout interval, skipping watchdog check: cs_nsec: 33393462646 wd_nsec: 33393450436
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (7195 ticks this GP) idle=5bbc/1/0x4000000000000000 softirq=76696/76696 fqs=5118
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1245543          0            0
rcu: 	cputime:    35490      16989           36   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=67361 q=5685 ncpus=2)
CPU: 1 UID: 0 PID: 18172 Comm: syz.8.3265 Not tainted syzkaller #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:is_bpf_text_address+0x0/0x2b0
Code: af 5a 00 be 00 02 00 00 bf 02 00 00 00 4c 89 ea e8 e5 61 56 ff 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <0f> 1f 40 d6 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 49 89 fe e8
RSP: 0018:ffffc90000a07e70 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007ff82399c799 RCX: 0000000000000101
RDX: 0000000000000002 RSI: ffffffff8e169d5a RDI: 00007ff82399c799
RBP: 0000000000000001 R08: ffffffff81af384d R09: ffffffff8e75e5e0
R10: ffffc90000a07f18 R11: ffffffff81b0c390 R12: ffff8881bc583a80
R13: ffff88816b6efc00 R14: 0000000000000001 R15: 1ffff92000140fe2
FS:  00007ff8248e16c0(0000) GS:ffff8882a945a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000010d1ee000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kernel_text_address+0xa5/0xe0
 __kernel_text_address+0xd/0x30
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfb/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x35c/0x760
 cfg80211_inform_single_bss_data+0x952/0x1b70
 cfg80211_inform_bss_data+0x266/0x3c40
 cfg80211_inform_bss_frame_data+0x3c7/0x760
 ieee80211_bss_info_update+0x794/0xa40
 ieee80211_scan_rx+0x552/0xa40
 ieee80211_rx_list+0x29e5/0x3710
 ieee80211_rx_napi+0x1b1/0x3e0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 tasklet_action_common+0x2da/0x4b0
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__schedule+0x15e5/0x52d0
Code: d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 c1 46 80 f6 4c 89 2b 4c 89 e7 4c 89 ee e8 f3 91 83 f5 48 89 c7 e8 2b 46 e5 f5 <31> ff 4d 39 ec 40 0f 95 c7 e8 4d 4f e5 f5 48 8b 84 24 d8 00 00 00
RSP: 0018:ffffc90003817060 EFLAGS: 00000202
RAX: 0000000000041ea7 RBX: ffff88823c63ae48 RCX: 0000000080000001
RDX: 0000000000000007 RSI: ffffffff8def8e53 RDI: ffffffff8c27ca00
RBP: ffffc90003817250 R08: ffffffff9011b4b7 R09: 1ffffffff2023696
R10: dffffc0000000000 R11: fffffbfff2023697 R12: ffff8881bc583a80
R13: ffff8881bc583a80 R14: dffffc0000000000 R15: 1ffff110478c75c3
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0x74/0x80
 __rcu_read_unlock+0x83/0xe0
 unmap_page_range+0x3c06/0x48f0
 unmap_vmas+0x48f/0x6a0
 exit_mmap+0x280/0xa10
 __mmput+0x118/0x430
 copy_process+0x297f/0x3cd0
 kernel_clone+0x248/0x8e0
 __x64_sys_clone+0x1b6/0x230
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff82399c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff8248e0fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ff823c15fa0 RCX: 00007ff82399c799
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ff823a32c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff823c16038 R14: 00007ff823c15fa0 R15: 00007fffaeab7f18
 </TASK>
sched: DL replenish lagged too much
