On Wed, Aug 09, 2006 at 12:12:49PM +0400, Kirill Korotaev wrote:
> > > >>Even without getting into just how ugly this is, is it really worth
> > > >>it?
> > > it is impossible to run debug kernels w/o this patch :/
> > > or are you asking whether this optimization worth it?
> > >
> > > What makes me worry is that this is a sign that vendors
> > > don't even bother to run debug kernels :((((
> >
> > Fedora rawhide is nearly always shipping with DEBUG_SLAB enabled,
> > and we didn't hit this once. Are you sure this is a problem
> > with DEBUG_SLAB, and not DEBUG_PAGEALLOC ?
> Sorry, it's my fault. Surely, CONFIG_DEBUG_PAGEALLOC.
Then you're correct, vendors rarely turn this on :)
I do sometimes if I'm trying to chase down something particularly
difficult, and it usually gets me a bunch of mail from users
asking why 'everything got all slow', so it's a last-resort option
rather than a 'on all the time' option.
Dave
--
http://www.codemonkey.org.uk
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