Date: Mon, 23 Dec 2013 11:36:09 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org, sbruno@freebsd.org Subject: Re: kasserts behind invariants Message-ID: <201312231136.09487.jhb@freebsd.org> In-Reply-To: <1386971425.37172.9.camel@powernoodle.corp.yahoo.com> References: <1386971425.37172.9.camel@powernoodle.corp.yahoo.com>
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On Friday, December 13, 2013 4:50:25 pm Sean Bruno wrote:
> I guess this may have been argued before, but I don't see why we would
> want to hide specific things like: sys/kern/subr_lock.c
>
> /* Check for double-init and zero object. */
> KASSERT(!lock_initalized(lock), ("lock \"%s\" %p already initialized",
> name, lock));
>
> If I hadn't completely missed the fact that I had INVARIANTS activated,
> I'd never have found out why this vendor driver was being so completely
> stupid and crashing my machine.
>
> If I find things like this that I want old KASSERT behavior on (panic if
> true) and I don't want to run INVARIANTS, is that possible?
KASSERT has never been enabled sans INVARIANTS.
--
John Baldwin
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