Re: Re: haret: exception reading coprocessor 15 register 2 (wince 5.0 hx2490)

From: Richard Purdie <rpurdie_at_rpsys.net>
Date: Wed, 28 Dec 2005 19:41:25 +0000

On Wed, 2005-12-28 at 17:42 +0100, Steffen Kern wrote:
> On Wed, Dec 28, 2005 at 04:57:18PM +0100, Steffen Kern wrote:
> mkay, sorry, I have to revise my last statement... when it didnt boot I started playing
> with the kernel commandline parameters... I now copied the original default.txt back onto
> the ipaq and tried booting with that one and got a bit further ... and ends with a
> kernel panic:

I was about to tell you to check default.txt as at a guess, the machine
number wasn't set.

Having looked at the kernel output, it looks serious and I don't know
why it would do that. It could be some kind of protection mechanism has
been left present by windows CE. To quote from arch/arm/kernel/traps.c:

/*
 * bad_mode handles the impossible case in the vectors. If you see one of
 * these, then it's extremely serious, and could mean you have buggy hardware.
 * It never returns, and never tries to sync. We hope that we can at least
 * dump out some state information...
 */

I don't think your hardware is buggy but there is something very wrong
with the machine state (maybe due to WinCE?). You could ask about this
on the linux-arm-kernel mailing list as they might have more of an
idea.

Welcome to the world of kernel development :)

Cheers,

Richard
Received on Wed Dec 28 2005 - 14:48:53 EST

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