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Re: Hurd logging. (was zalloc panic)

From: Niels Möller
Subject: Re: Hurd logging. (was zalloc panic)
Date: 03 Mar 2002 11:29:27 +0100
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.1

Jon Arney <jarney1@cox.net> writes:

> At the risk of beating a dead horse and annoying you all
> terribly much, I would like to submit some of my thinking
> on a Hurd logging facility.  Feel free to tear this to
> shreads, but I think the discussion should be started
> and work begun on a solution to the problem of what to
> do about a hurd logging facility.

I need to read the proposal more carefully, but for now I only have
one question:

Have you considered using the ordinary io_write rpc for sending log
messages? There are at least two advantage with that: You can easily
open the logging facility of the stderr of any process. And if you do
so, you also get messages like assertions failures, that aren't aware
of the logging facility, for free. In particular, you could provide it
as the stderr of a filesystem, and have translators on that filesystem
inherit it by default.

Earlier, it was proposed to have stderr of the root filesystem be
directed to he console. Thomas argued that was a really bad idea, and
he's probably right. But I still think it would be desirable to use
stderr for diagnostic messages from translators and other daemons.


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