On Tue, 6 Mar 2007, Chuck Ebbert wrote: > > In the 4k/4k stack i386 kernel, is there any fundamental reason it > can't be 4k/8k? We seem to be mostly hitting problems in overflowing > the IRQ stack... I think. Overhead would only be 4k per CPU for that.
For all of history prior to 2.6.20, there's been the fundamental reason that even interrupt stacks need to access current_thread_info, and that involved the (THREAD_SIZE - 1) mask. But 2.6.20's read_pda using %gs gets away from that: my guess is that it's now possible for i386 to use different sized stacks. Hugh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
