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Date:      Thu, 7 Mar 2002 13:05:05 +1030
From:      Greg Lehey <grog@FreeBSD.org>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        Glenn Gombert <ggombert@imatowns.com>, smp@FreeBSD.org
Subject:   Re: Some thoughts on Giant instrumentation
Message-ID:  <20020307130505.P66287@wantadilla.lemis.com>
In-Reply-To: <XFMail.020228203310.jhb@FreeBSD.org>
References:  <3.0.6.32.20020228184845.00da5868@imatowns.com> <XFMail.020228203310.jhb@FreeBSD.org>

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On Thursday, 28 February 2002 at 20:33:10 -0500, John Baldwin wrote:
>
> On 28-Feb-02 Glenn Gombert wrote:
>>      I think what needs to be added (and is sorely lacking) are some good
>> syscalls (that can be called from 'userland' to perform such things as dump
>> out the 'ktr' buffer from a user land program and show contents of some of
>> the other kernel parameters (when using a test program from user land). It
>> seems like a good set of 'debug syscalls' would be a good addition to the
>> smp code that is -current and would make debugging/development efforts
>> easier and more efficient for everyone :))
>
> Yep, being able to dump ktr to userland would be rather cool indeed if you'd
> like to tackle it. :)

A program to do this already exists for BSD/OS.  We have the sources,
but we never got round to porting it.  Look for tdump(8).

Greg
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