From owner-freebsd-bugs Mon Apr 7 10:32:40 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id KAA25737 for bugs-outgoing; Mon, 7 Apr 1997 10:32:40 -0700 (PDT) Received: from pluto.plutotech.com (root@pluto100.plutotech.com [206.168.67.137]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id KAA25732 for ; Mon, 7 Apr 1997 10:32:37 -0700 (PDT) Received: from narnia.plutotech.com (narnia.plutotech.com [206.168.67.130]) by pluto.plutotech.com (8.8.5/8.8.3) with ESMTP id LAA12110; Mon, 7 Apr 1997 11:32:20 -0600 (MDT) Message-Id: <199704071732.LAA12110@pluto.plutotech.com> X-Mailer: exmh version 2.0beta 12/23/96 To: Petr Lampa cc: freebsd-bugs@freefall.freebsd.org Subject: Re: i386/3195: ahc panic In-reply-to: Your message of "Mon, 07 Apr 1997 00:20:02 PDT." <199704070720.AAA27745@freefall.freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 07 Apr 1997 11:30:48 -0600 From: "Justin T. Gibbs" Sender: owner-bugs@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > Still the same problems, after some time error: > > ahc1:A:1: no active SCB for reconnecting target - issuing ABORT > SAVED_TCL == 0x10 > ahc1:A:1: Target did not send an IDENTIFY message > LASTPHAS = 0x0, SAVED_TCL = 0x10 Have you tried the latest changes to the driver? > and systems loops in ahc driver, everytime I hit kernel debugger, stack is: > > ahc_scsi_cmd > scsi_scsi_cmd > sdstart > free_xs > scsi_done > ahc_done > ahc_run_done_queue > ahc_reset_channel > > I have tried to change a bit of code, which probably causes hangup: This is close, but by delaying the done processing until after the bus settle delay completes, you almost assure that those SCBs will timeout again. I'll commit some patches today that fix this problem. -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================