From owner-freebsd-current@FreeBSD.ORG Mon May 9 00:21:47 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A398716A4E6 for ; Mon, 9 May 2005 00:21:47 +0000 (GMT) Received: from obsecurity.dyndns.org (CPE0050040655c8-CM00111ae02aac.cpe.net.cable.rogers.com [69.194.102.111]) by mx1.FreeBSD.org (Postfix) with ESMTP id 66CEF43D79 for ; Mon, 9 May 2005 00:21:47 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id BE4655154F; Sun, 8 May 2005 17:21:46 -0700 (PDT) Date: Sun, 8 May 2005 17:21:46 -0700 From: Kris Kennaway To: Doug White Message-ID: <20050509002146.GA49686@xor.obsecurity.org> References: <19E55C10-0A22-4558-82FF-FC56AF3D365F@anduin.net> <20050508161121.F77229@carver.gumbysoft.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="2oS5YaxWCcQjTEyO" Content-Disposition: inline In-Reply-To: <20050508161121.F77229@carver.gumbysoft.com> User-Agent: Mutt/1.4.2.1i cc: Eirik ?verby cc: current@freebsd.org Subject: Re: Strange semi-hangs on 5.4 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 May 2005 00:21:47 -0000 --2oS5YaxWCcQjTEyO Content-Type: text/plain; charset=unknown-8bit Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, May 08, 2005 at 04:14:45PM -0700, Doug White wrote: > On Sun, 8 May 2005, [ISO-8859-1] Eirik =D8verby wrote: >=20 > > Hi all, > > > > With relatively recent 5.4, I'm seeing hangs that worry me. The box > > (dual opteron) accepts keyboard input, but it won't actually DO > > anything.. SSHing in gives me a TCP session but no actualy password > > prompt. Trying to log in on (serial) console doesn't work, I just get > > a newline after entering the username, no password prompt. On SSH > > shells alredy open, I can't even get a new prompt line, all I get is > > newlines. >=20 > I've seen this if you have console redirection set to "always" on certain > BIOSes. Some apparently can stay alive after FreeBSD steals the serial > port and jumps into protected mode. Most notice loader fiddling with the > port registers and know to get out of the way. >=20 > Try turning it off or setting it to "Boot Loader" or turn off "CR > Redirection after POST". >=20 > > telnet> send brk >=20 > Cyclades? >=20 > > KDB: enter: Line break on console > > 3KtDhB:a s tpaicdk 1b1a0e00:0 >=20 > Ah, interleaved output :-) >=20 > > aitd l e _ p r o c ( ) a t i d l e _ p r o c + 0 x 1 1 3 >=20 > The spaces here are what I'm guessing is the console redirection. Or two simultaneous panics from different CPUs..I get this quite frequently (but not the DDB prompt loop). Kris --2oS5YaxWCcQjTEyO Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFCfq0aWry0BWjoQKURAkGlAKC5uRITGHfaE07gIzj+FhaBOgDADgCfQVSl qRxGs8/wWWj1g8i4Ek6IL38= =aDXI -----END PGP SIGNATURE----- --2oS5YaxWCcQjTEyO--