From owner-freebsd-stable@FreeBSD.ORG Wed Oct 27 20:03:12 2010 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 204B6106566B for ; Wed, 27 Oct 2010 20:03:12 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta08.westchester.pa.mail.comcast.net (qmta08.westchester.pa.mail.comcast.net [76.96.62.80]) by mx1.freebsd.org (Postfix) with ESMTP id D34308FC08 for ; Wed, 27 Oct 2010 20:03:11 +0000 (UTC) Received: from omta02.westchester.pa.mail.comcast.net ([76.96.62.19]) by qmta08.westchester.pa.mail.comcast.net with comcast id Pqfs1f0040QuhwU58w3CJN; Wed, 27 Oct 2010 20:03:12 +0000 Received: from koitsu.dyndns.org ([98.248.41.155]) by omta02.westchester.pa.mail.comcast.net with comcast id Pw361f00Y3LrwQ23Nw37XU; Wed, 27 Oct 2010 20:03:10 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 50E439B425; Wed, 27 Oct 2010 13:03:05 -0700 (PDT) Date: Wed, 27 Oct 2010 13:03:05 -0700 From: Jeremy Chadwick To: Randy Bush Message-ID: <20101027200305.GA35927@icarus.home.lan> References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Cc: stable Subject: Re: beastiality X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Oct 2010 20:03:12 -0000 On Thu, Oct 28, 2010 at 04:47:00AM +0900, Randy Bush wrote: > on the serial console, i am seeing twirlies doubled, as in >=20 > // >=20 > and the beastie is very tortured >=20 > +-----------------------------------------++=BF=C4-=C4-=C4-=C4-=C4-=C4-= =C4-=C4-=C4-=C4-=C4-=C4-=C4-=C4-=C4-=C4-=C4-=C4|=C4-=C4 = ||=B3 > ||=B3 ||=B3 , ,= ,, ||=B3 ,, ||=B3 /(= )` //(( ||=B3 Welcome to FreeBSD!oo FFrreeee|BSSDD!! = \ \___ / | \\ \\___||=B3 // || ||= =B3 /- _ `-/ ' //-- __ ||=B3``--// '' = ||=B3 (/\/ \ \ /\((//\\// \||=B31. Boot FreeBSD [defaul= t]BSSDD [[ddeef|aauulltt]] / / | ` \/ // ||=B32. Boot FreeBSD = with ACPI enabledwiitth| AACCPPII eennaab) / |/ |||=B33. Boot F= reeBSD in Safe ModeDD iinn S|a `-^--'`< '`--^^----'||=B34.= Boot FreeBSD in single user moden s|i (_.) _ ) /ddee)) _= ||=B35. Boot FreeBSD with verbose loggingtth| `.___/` / = ____/||=B36. Escape to loader promptllooaaddeerr |p `-----' = / ``-----||=B37. Rebootebboooott || <----. __ = / __ \ ____ // _||=B3 \\ || <----|= =3D=3D=3D=3DO)))=3D=3D) \) /=3D=3D=3D=3D|)))=3D=3D=3D=3D)||=B3\\)) //=3D= =3D=3D=3D=3D=3D=3D=3D|| || <----' `--' `.__,' \`----= '' ``.||=B3__,,'' \\ || | = | || ||=B3 || || = \ / /\ ||=B3Select option, [Enter] for defaultEnntt|e = ______( (_ / \______/_(( ||=B3or [Space] to pause timer H--11 ussee| = ,' ,-----' | ,,---------+---------------------------------------= --++ `--{__________) -=C4-=C4-=C4-=C4-=C4-=C4-=C4-=C4_____)) =20 > > [...] > spare.psg.com:/root# cat /boot/loader.conf.local > loader_logo=3Dbeastie > # > console=3D"comconsole vidconsole" > comconsole_speed=3D"9600" > # > ipfw_load=3DYES This is often caused by a combination of two things being enabled simultaneously: BIOS-level serial console redirection after POST, and FreeBSD's serial console support. Effectively, the system BIOS is "redirecting" VGA output to the serial port, while simultaneously FreeBSD is doing serial console. But I've seen different behaviour on different hardware over the years when the first option is enabled. - "Doubling of characters" like the above (but sometimes not doubled) - System hard locking (reset/power cycle required) the instant the boot loader tries to do serial (some of my Yahoo! colleagues can confirm this one, even when using RedHat) - System boots/runs fine but no serial output is visible past loader I have some older Supermicro systems which do even weirder things when the option is enabled, like lock up after loader. I've also see different behaviour on RELENG_7 than I do RELENG_8. Back to Supermicro systems -- the aforementioned feature is usually labelled as "Continue C.R. After POST" (C.R. stands for Console Redirection). This is not the same thing as disabling BIOS-level serial console entirely, just that the "Agent" (some sort of interrupt tie-in) isn't retained after POST. If your system offers the BIOS option, you can try turning it off and see if things improve. Be aware that you will lose the ability to access things like Option ROMs (SCSI BIOSes, Intel NIC PXE boot information, etc.). If your system doesn't offer that BIOS option, then possibly just leaving console as its default will suffice. --=20 | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |