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List:       freebsd-questions
Subject:    Re: 7-Current: turn off debugging (kqread?)
From:       Kevin Kramer <kramer () centtech ! com>
Date:       2007-06-29 16:35:11
Message-ID: 468534BF.2060004 () centtech ! com
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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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