Hang up boot on armv5t

[Mori Hiroki]

Hi

I build 13-Current for arm/ralink today.
I have problem that is hang up on boot at random.

If you have advice, please let me know.

Regards

Hiroki Mori

---<<BOOT>>---
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2019 The FreeBSD Project.
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The Regents of the University of California. All rights reserved.
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FreeBSD 13.0-CURRENT #14 1a121cb132a(zrouter)-dirty: Fri May 17 16:32:40 JST 2019
    hiroki at zrouter:/usr/home/hiroki/zobj/usr/home/hiroki/ZRouter/tmp/usr/home/hiroki/freebsd/arm.arm/sys/Buffalo_WZR2-G300N arm
FreeBSD clang version 8.0.0 (tags/RELEASE_800/final 356365) (based on LLVM 8.0.0)
Preloaded elf kernel "kernel" at 0xc02f42f8.
CPU: ARM926EJ-S rev 5 (ARM9EJ-S core)
  Little-endian DC enabled IC enabled WB enabled LABT branch prediction disabled
  16KB/32B 4-way instruction cache
  16KB/32B 4-way write-back-locking-C data cache
real memory  = 16777216 (16 MB)
avail memory = 11485184 (10 MB)
Physical memory chunk(s):
  0x40000000 - 0x40ffffff,    16 MB (   4096 pages)
Excluded memory regions:
  0x40000000 - 0x4043bfff,     4 MB (   1084 pages) NoAlloc 
Static device mappings:
  0x19c00000 - 0x1e6fffff mapped at VA 0xfb400000
  0x1e800000 - 0x1effffff mapped at VA 0xfac00000
  0x1f000000 - 0x1f3fffff mapped at VA 0xfa800000
arc4random: WARNING: initial seeding bypassed the cryptographic random device because it was not yet seeded and the knob 'bypass_before_seeding' was enabled.
random: entropy device external interface