panic r326359

[Masachika ISHIZUKA]

  After updating r326359, kernel panic has occure. ( I can boot up
but panics within a few minutes.)
  It was good working up to r325887.

# cat /var/crash/info.6
Dump header from device: /dev/gpt/fbswap
  Architecture: amd64
  Architecture Version: 2
  Dump Length: 505135104
  Blocksize: 512
  Compression: none
  Dumptime: Wed Nov 29 20:22:32 2017
  Hostname: carrot.ish.org
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 12.0-CURRENT #2 r326359: Wed Nov 29 19:06:12 JST 2017
    ishizuka at carrot.ish.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC
  Panic String: Lock if_lagg rmlock not read locked @ /usr/src/sys/net/if_lagg.c:1655

  Dump Parity: 971727379
  Bounds: 6
  Dump Status: good

  I put vmcore.6.bz2(157mb) in the following.
https://www.ish.org/files/vmcore.6.bz2
-- 
Masachika ISHIZUKA