From owner-freebsd-current Tue Aug 13 5:52:32 2002 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 8AD1F37B400; Tue, 13 Aug 2002 05:52:30 -0700 (PDT) Received: from mailman.zeta.org.au (mailman.zeta.org.au [203.26.10.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id 489E443E42; Tue, 13 Aug 2002 05:52:29 -0700 (PDT) (envelope-from bde@zeta.org.au) Received: from bde.zeta.org.au (bde.zeta.org.au [203.2.228.102]) by mailman.zeta.org.au (8.9.3/8.8.7) with ESMTP id MAA18855; Tue, 13 Aug 2002 12:52:24 GMT Date: Tue, 13 Aug 2002 22:57:28 +1000 (EST) From: Bruce Evans X-X-Sender: bde@gamplex.bde.org To: Gavin Atkinson Cc: current@freebsd.org, Subject: Re: 100% reproducable hang: serial related In-Reply-To: Message-ID: <20020813225344.E28507-100000@gamplex.bde.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, 12 Aug 2002, Gavin Atkinson wrote: > ... [Replied to part separately.] > I can also hold ctrl-alt-escape on my laptop, and power up or down the PC, > which will drop my laptop into DDB. From that point on, ddb works fine, > continuing back to userspace works fine, and my laptop is no longer hung. > Note however that often, from this point on until I quit tip, all > characters I send seem to be sent as uppercase. ddb disables interrupts in -current, and this probably helps by preventing interrupt storms. Getting uppercase is harder to explain. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message