Am I an Idiot?

[Doug Barton]

David Stanford wrote:
> On 12/9/06, David Nugent <davidn at 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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