linux-kernel - Re: Serial related oops

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Message-ID: <20070301151022.GA15447@flint.arm.linux.org.uk>
Date:	Thu, 1 Mar 2007 15:10:22 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Jose Goncalves <jose.goncalves@...v.pt>
Cc:	Frederik Deweerdt <deweerdt@...e.fr>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: Serial related oops

On Thu, Mar 01, 2007 at 01:33:28PM +0000, Jose Goncalves wrote:
> I've also done your suggestion and I've inserted "msleep(10);" just
> before the "And clear the interrupt registers again for luck." and my
> application is now running without problems fore more than 24H! So,
> inserting a delay in this point definitely makes some difference (has
> was with adding some extra printk() in several points of
> serial8250_startup()).
> 
> This said, for me, this is definitely a software problem. The question
> is were?

I'm personally convinced it's hardware because according to my analysis
your CPU behaving in a way that the code is not asking it to do so.

Maybe others have some further insight; I certainly don't.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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