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Re: [PATCH] IP22: fix serial console hangs

To: Kumba <kumba@gentoo.org>
Subject: Re: [PATCH] IP22: fix serial console hangs
From: Julien BLACHE <jblache@debian.org>
Date: Sun, 09 Jul 2006 20:37:21 +0200
Cc: linux-mips@linux-mips.org
In-reply-to: <44B13F02.5020002@gentoo.org> (kumba@gentoo.org's message of "Sun, 09 Jul 2006 13:38:10 -0400")
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <87irm6naxt.fsf@frigate.technologeek.org> <44B13F02.5020002@gentoo.org>
Sender: linux-mips-bounce@linux-mips.org
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Kumba <kumba@gentoo.org> wrote:

Hi,

> Out of curiosity, don't suppose you've seen the oops on IP22 that can
> sometimes be triggered by closing the serial client on another box?

Haven't seen this one, no. I'm using a hardware console on the serial
line most of the time (though I still haven't found the proper
configuration and it's hardly usable for anything advanced making use
of terminal features).

> Haven't investigated it too much, but I've seen the odd case on Indy
> and IP28 (which also uses the zilog driver) where shutting down my
> serial client or sometimes rebooting the system running the client
> oopses the driver.  I suspect some rogue data gets passed that zilog
> doesn't know how to handle properly.

It looks a bit like the serial driver crash on reboot which Martin
Michlmayr fixed a couple of months back by backporting fixes from the
sunzilog driver. But I think this one made its way into the kernel, so
it must be something else.

JB.

-- 
 Julien BLACHE <jblache@debian.org>  |  Debian, because code matters more 
 Debian & GNU/Linux Developer        |       <http://www.debian.org>
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