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Date:      Wed, 3 Apr 2013 20:03:12 +0300
From:      Konstantin Belousov <kostikbel@gmail.com>
To:        mh@kernel32.de
Cc:        freebsd-current@freebsd.org
Subject:   Re: panic at serial boot
Message-ID:  <20130403170312.GB3794@kib.kiev.ua>
In-Reply-To: <80b2deb3359ca04fb784334d60719860@kernel32.de>
References:  <e755813a47d9e5a05dd2d308a6b3d8a9@kernel32.de> <515289AC.3050204@FreeBSD.org> <936608f069b988fcd58707edb9b4dde0@kernel32.de> <20130327133220.GZ3794@kib.kiev.ua> <24096f01453ab9d0fe898522874cd928@kernel32.de> <941a3c1e7cb49087c8bf941399b1e5ae@kernel32.de> <20130402195223.GU3794@kib.kiev.ua> <80b2deb3359ca04fb784334d60719860@kernel32.de>

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On Tue, Apr 02, 2013 at 11:06:06PM +0200, mh@kernel32.de wrote:
> Hi again,
>=20
> Am 2013-04-02 21:52, schrieb Konstantin Belousov:
> > On Tue, Apr 02, 2013 at 08:23:20PM +0200, mh@kernel32.de wrote:
> >
> > Try breaking into the debugger and see where it progresses. To do=20
> > this,
> > you would need to boot with the 'boot -d' command from the loader=20
> > prompt,
> > then do 'w kbd_break_to_debugger 1', then ctrl-alt-esc when you want=20
> > to
> > activate the debugger. In the debugger, start with the 'ps' command.
> >
>=20
> After the beastie menu I went to the loader prompt and did "boot -d".
> I was sent to the debugger and did "w kbd_break_to_debugger 1".
>=20
> This is the output I get.
>=20
> INT 13 08: Success, count =3D 1, BPT =3D 0000:0000                       =
  =20
>         GDB: no debug ports present
> KDB: debugger backends: ddbhift limit: 0x82
> KDB: current backend: ddbt15 =3D f000f859  int1e =3D f000ef6d
> KDB: enter: Boot flags requested debuggerint1e =3D f000ef6d
> [ thread pid 0 tid 0 ] booting...
> Stopped at      kdb_enter+0x3e: movq    $0,kdb_why
> db> w kbd_break_to_debugger 1
> Symbol not found
It is kdb_break_to debugger.
Sorry.

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