On Thu, Dec 28, 2006 at 01:24:30PM -0800, Linus Torvalds wrote: > On Thu, 28 Dec 2006, Linus Torvalds wrote: > > > > What we need now is actually looking at the source code, and people who > > understand the VM, I'm afraid. I'm gathering traces now that I have a good > > test-case. I'll post my trace tools once I've tested that they work, in > > case others want to help. > > Ok, I've got the traces, but quite frankly, I doubt anybody is crazy > enough to want to trawl through them. It's a bit painful, since we're > talking thousands of pages to trigger this problem. > > Also, I've used the PG_arch_1 flag, which is fine on x86[-64] and probably > ARM, but is used for other things on ia64, powerpc and sparc64. But here's > the patch in case anybody cares.
PG_arch_1 is used on ARM to flag pages that need a dcache flush prior to hitting userspace, in the same way that sparc64 uses it. So ARM systems should not have this patch applied. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: - 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/
