Date: Fri, 29 Jun 2007 11:35:11 -0500 From: Kevin Kramer <kramer@centtech.com> To: Tom Evans <tevans.uk@googlemail.com> Cc: freebsd-questions@freebsd.org Subject: Re: 7-Current: turn off debugging (kqread?) Message-ID: <468534BF.2060004@centtech.com> In-Reply-To: <1183133636.1511.66.camel@localhost> References: <46851860.1030401@centtech.com> <1183133636.1511.66.camel@localhost>
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yes. that is where I have started, but I cannot get buildkernel to build
with those commented out. the UPDATING file also lists heavy debugging
turned on in userland, which I can't track down to any config files.
I've cvsup'ng now to see if I can build today.
Tom Evans wrote the following on 06/29/07 11:13:
> On Fri, 2007-06-29 at 09:34 -0500, Kevin Kramer wrote:
>
>> I know that debugging is turned on everywhere on 7-Current and I've read
>> UPDATING. But what I can't find is how to turn off debugging. I've tried
>> removing all debugging from the kernel, but it won't build. I can't find
>> any userland debugging notes to turn it off.
>>
>> It is taking literally 5 minutes to login to my host and the same amount
>> of time to run top. Processes get stuck in kqread. Maybe this is not a
>> 7-Current debugging problem, but I need some guidance on where to go or
>> what to look for.
>>
>> Any help appreciated.
>>
>
> In your kernel config, remove these lines if they exist:
>
> 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
> for speed
>
> You can leave the "options {K,D,G}DB" lines, they incur virtually now
> performance costs.
>
> You would get more help (possibly) if you tried posting on current@
>
>
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