Date: Sat, 09 Dec 2006 14:49:18 -0800 From: Doug Barton <dougb@FreeBSD.org> To: David Stanford <dthomas53@gmail.com> Cc: freebsd-current@freebsd.org, davidn@datalinktech.com.au Subject: Re: Am I an Idiot? Message-ID: <457B3D6E.5080207@FreeBSD.org> In-Reply-To: <f2c91f770612091423h51a7bd7du2b79e801ea4662f4@mail.gmail.com> References: <4579EB08.8080704@intersonic.se> <457A3B9B.5000304@datalinktech.com.au> <f2c91f770612091238v747a82fdy2908da9276c20801@mail.gmail.com> <457B352A.1040202@datalinktech.com.au> <f2c91f770612091423h51a7bd7du2b79e801ea4662f4@mail.gmail.com>
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David Stanford wrote:
> On 12/9/06, David Nugent <davidn@datalinktech.com.au> wrote:
>>
>> David Stanford wrote:
>> > This is a somewhat OT question, but what needs to be done to turn off
>> > the on-by-default debugging features when running -CURRENT?
>> Don't use WITNESS, INVARIANTS and associated options in your kernel
>> configuration. These enable the debugging features.
>>
>
> It was my assumption to simply remove this entire section to disable
> debugging:
>
> =====================
> # Debugging for use in -current
These don't really hurt performance
> options KDB # Enable kernel debugger support.
> options DDB # Support DDB.
This one isn't necessary if you're not debugging remotely in any case
> options GDB # Support remote GDB.
These do hurt performance
> options INVARIANTS # Enable calls of extra sanity
> checking
> options INVARIANT_SUPPORT # Extra sanity checks of internal
> structures, required by INVARIANTS
> options WITNESS # Enable checks to detect deadlocks
> and cycles
> options WITNESS_SKIPSPIN # Don't run witness on spinlocks
hth,
Doug
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