* Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > +config DEBUG_PAGEALLOC > > + bool "Debug page memory allocations" > > + depends on DEBUG_KERNEL && ARCH_SUPPORTS_DEBUG_PAGEALLOC > > + depends on !HIBERNATION || !PPC && !SPARC > > + ---help--- > > + Unmap pages from the kernel linear mapping after free_pages(). > > + This results in a large slowdown, but helps to find certain types > > + of memory corruptions. > > + > > I guess this is why it wasn't discovered in my compile testing. > It's quite regrettable that `make allmodconfig' didn't enable the > feature. That's what allmodconfig is for. Hm, i _do_ remember some hibernation magic fix from Rafael, in the area of debugalloc. Many months ago. Rafael, is it supposed to work? If yes, i think we should unblock it. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
