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List: linuxppc64-dev
Subject: [PATCH] KDB for ppc64 - write to OF stdout instead of console
From: segher () kernel ! crashing ! org (Segher Boessenkool)
Date: 2004-05-21 12:52:01
Message-ID: A73E140A-AB25-11D8-A502-000A95A4DC02 () kernel ! crashing ! org
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On 19-mei-04, at 19:02, linas at austin.ibm.com wrote:
> On Wed, May 19, 2004 at 02:49:10PM +0200, Segher Boessenkool wrote:
>>> Patch inlined removes KDB's dependency on consoles completely for
>>> I/O.
>>> With this patch, we use the OF stdout for both input and output.
>>
>> OF stdout is not necessarily the same thing as OF stdin
>> (and, in fact, very often isn't) -- please use stdin for
>> input?
>
> The problem was actually with output, not input. People were seeing
> the KDB prompt on the serial console, and so they would assume they
> had input, when in fact they didn't. And so this insane dance would
> start, "KDB is hung, @#$%^& KDB".
I didn't read the actual patch, just the description. And that
set off some alarms here ;-)
I guess what the patch actually does is "use OF stdout for output,
and OF stdin for input", which is fine fine fine.
Segher
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