From owner-freebsd-current@FreeBSD.ORG  Thu Feb 23 14:41:16 2012
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Date: Thu, 23 Feb 2012 14:41:16 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: John Baldwin <jhb@freebsd.org>
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Cc: Bruce Cran <bruce@cran.org.uk>, freebsd-current@freebsd.org
Subject: Re: Loading uart module fails
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On Thu, Feb 23, 2012 at 08:28:47AM -0500, John Baldwin wrote:
> Hmm, can you see what 'dev->nameunit' is?  Maybe just do 'p *dev' actually
> and reply with that.

(kgdb) p *dev
$1 = {ops = 0xc50de000, link = {tqe_next = 0xc5271380, tqe_prev =
0xc5271184},
  devlink = {tqe_next = 0xc5271380, tqe_prev = 0xc527118c},
  parent = 0xc51fca80, children = {tqh_first = 0x0, tqh_last = 0xc5271318},
  driver = 0x0, devclass = 0xc5270a40, unit = 0,
  nameunit = 0xc5006a00 "uart0",
  desc = 0xc5511205 <Address 0xc5511205 out of bounds>, busy = 0,
  state = DS_NOTPRESENT, devflags = 0, flags = 35, order = 30,
  ivars = 0xc5270d00, softc = 0x0, sysctl_ctx = {tqh_first = 0x0,
    tqh_last = 0x0}, sysctl_tree = 0x0}

./danfe