From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 31 Jul 2003 18:37:54 +0100 (BST) Received: from gateway-1237.mvista.com ([IPv6:::ffff:12.44.186.158]:27886 "EHLO orion.mvista.com") by linux-mips.org with ESMTP id ; Thu, 31 Jul 2003 18:37:52 +0100 Received: (from jsun@localhost) by orion.mvista.com (8.11.6/8.11.6) id h6VHboK06262; Thu, 31 Jul 2003 10:37:50 -0700 Date: Thu, 31 Jul 2003 10:37:50 -0700 From: Jun Sun To: Chris Dearman Cc: linux-mips@linux-mips.org, jsun@mvista.com Subject: Re: Malta + USB on 2.4, anyone? Message-ID: <20030731103750.E14914@mvista.com> References: <20030730191219.A14914@mvista.com> <3F28E702.70401@mips.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3F28E702.70401@mips.com>; from chris@mips.com on Thu, Jul 31, 2003 at 10:53:06AM +0100 Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 2944 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: jsun@mvista.com Precedence: bulk X-list: linux-mips On Thu, Jul 31, 2003 at 10:53:06AM +0100, Chris Dearman wrote: > Jun Sun wrote: > > Has anybody tried USB on malta with 2.4 kernel? I just found that > > I got 0xff IRQ number and kernel panics. > > > Also, the kgdb seems to be flaky. Targets can send chars too fast > > so that chars get lost. It appears that the linux status register > > might be lying about "transmitter buffer empty". > > I regularly use gdb @ 115200 on Malta and haven't noticed any problems. > Yes. I notice that kgdb generally works, but gets flaky when I hit this particular problem. That makes me wonder maybe something gets very wrong with the controller chip.... Keep debugging ... Jun