Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [2.6 patch] i386: always use 4k stacks | Date | Wed, 16 Nov 2005 20:08:50 +0100 |
| |
On Wednesday 16 November 2005 20:03, Benjamin LaHaise wrote: > On Wed, Nov 16, 2005 at 07:45:08PM +0100, Adrian Bunk wrote: > > The problem is similar no matter whether you have 4k or 8k stacks, but > > with 4k stacks you have the additional benefits of order 0 allocations > > and less memory usage. > > We could implement a stack guard page for the transition period, so that > any stack overflows would end up generating a fault. That's easy enough > to do by using vmalloc()
And would add considerable overhead in TLB flushes and locking ...
-Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |