Date: Fri, 29 Jun 2007 17:13:56 +0100 From: Tom Evans <tevans.uk@googlemail.com> To: Kevin Kramer <kramer@centtech.com> Cc: freebsd-questions@freebsd.org Subject: Re: 7-Current: turn off debugging (kqread?) Message-ID: <1183133636.1511.66.camel@localhost> In-Reply-To: <46851860.1030401@centtech.com> References: <46851860.1030401@centtech.com>
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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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