From owner-freebsd-hardware@FreeBSD.ORG Wed Oct 1 11:41:44 2003 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2484B16A4B3; Wed, 1 Oct 2003 11:41:44 -0700 (PDT) Received: from mail.sandvine.com (sandvine.com [199.243.201.138]) by mx1.FreeBSD.org (Postfix) with ESMTP id 047B743FE3; Wed, 1 Oct 2003 11:41:43 -0700 (PDT) (envelope-from don@sandvine.com) Received: by mail.sandvine.com with Internet Mail Service (5.5.2653.19) id ; Wed, 1 Oct 2003 14:41:42 -0400 Message-ID: From: Don Bowman To: 'David Raistrick' , Richy Kim , freebsd-scsi@freebsd.org Date: Wed, 1 Oct 2003 14:41:32 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" cc: freebsd-hardware@freebsd.org Subject: RE: SCSI, SMP, and Supermicro, problems! X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Oct 2003 18:41:44 -0000 From: David Raistrick [mailto:drais@wow.atlasta.net] > > Since the above, I rebooted the system again...and for the > first time I > > have a running SMP system. > > ...which degraded into being hung right after I sent the last email: > > ahd0: Timedout SCB already complete. Interrupts may not be > functioning. > > ahd0: Timedout SCB already complete. Interrupts may not be > functioning. > Well, another suggestion has to do with the use of the APIC and interrupt rotation. I can't recall the exact details of this, we ended up adding a 'options UNSWIZZLE' to the kernel. This was specifically for stuff behind a bridge. The problem was that BSD only allowed 24 interrupts, and we had run out. --don