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Re: Kernel Debugging on the DBAu1500

To: Pete Popov <ppopov@mvista.com>
Subject: Re: Kernel Debugging on the DBAu1500
From: Jeff Baitis <baitisj@evolution.com>
Date: Fri, 7 Mar 2003 12:36:37 -0800
Cc: linux-mips@linux-mips.org
In-reply-to: <1047043677.6389.436.camel@zeus.mvista.com>; from ppopov@mvista.com on Fri, Mar 07, 2003 at 05:27:58AM -0800
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20030306185345.W20129@luca.pas.lab> <1047043427.30914.432.camel@zeus.mvista.com> <1047043677.6389.436.camel@zeus.mvista.com>
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Pete wrote wrote:
> > Take a look at the board and remind me if the second serial port is
> > actually uart2, where the first is uart0. 
Pete wrote:
> Sorry, I meant uart3, which would be a reason why the UART2_ADDR define
> below wouldn't work.

Hrm. The DBAu1500 seems to lock up when I execute:
    echo "please, no freeze" > /dev/ttyS2
I can't even get SysRq to work after that command.

/dev/ttyS3 works fine, though.

> > I think it might be. If that's
> > the case, arch/mips/au1000/common/dbg_io.c has this define if kgdb is
> > defined:
> > 
> > #define DEBUG_BASE  UART2_ADDR

I changed it to:
#define  DEBUG_BASE  UART3_ADDR

Debugging seems to work great now! Thanks!


-JB


-- 
         Jeffrey Baitis - Associate Software Engineer

                    Evolution Robotics, Inc.
                     130 West Union Street
                       Pasadena CA 91103

 tel: 626.535.2776  |  fax: 626.535.2777  |  baitisj@evolution.com 


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