Re: [tip: x86/urgent] x86/mm/pat: Fix effective RW computation in lookup_address_in_pgd_attr()
From: Mike Rapoport <rppt@kernel.org>
Date: 2026-09-08 09:29:25
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Hi Nathan, On Mon, Sep 07, 2026 at 03:28:13PM -0700, Nathan Chancellor wrote:
On Sun, Sep 06, 2026 at 12:12:54PM -0700, Dave Hansen wrote:quoted
On 9/6/26 11:12, Nathan Chancellor wrote:quoted
Hmmm, I don't see a warning prior to this patch though. Do you mean that this patch is just revealing the bad behavior that you mention below?Yeah, "fixes" was a bad word to use. The W^X detection has been broken for a while. The patch you bisected to fixes the W^X detection. It doesn't actually cause the issue.Ah okay, that parses way better. I assume this will be sorted out without further information needed from me but I am happy to test a patch when available.
Here: https://lore.kernel.org/all/20260908092730.4002628-1-rppt@kernel.org/T/#u (local)
-- Cheers, Nathan
-- Sincerely yours, Mike.