On Sun, Feb 25, 2007 at 11:01:06PM -0500, David Woodhouse wrote: > Yeah, I did that before giving up on it for the day and going in search > of dinner. It changes the failure mode to a BUG() in > cache_free_debugcheck(), at line 2876 of mm/slab.c > It smells like the pages weren't actually reserved in the first place > and we were blithely allocating them. The only problem with that theory > is that the initrd doesn't seem to be getting corrupted -- and if we > were handing out its pages like that then surely _something_ would have > scribbled on it before we tried to read it. > When I head back in tomorrow morning I'll instrument free_initrd_mem() > to check that the PageReserved bit was actually set on each page, before > clearing it. And I'll make the page allocation routines check whether > they're giving out pages between initrd_start and initrd_end, etc.
Another few things to try would be inserting checks in page_alloc.c for pages in that specific range before some flag set in free_initrd_mem() is set, and (conflicting with that, though easily reconciled) unmapping initrd memory in free_initrd_mem() instead of freeing it. -- wli - 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/
