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Peter Anvin" Subject: Re: [REGRESSION] x86/hugetlb: AMD F15h VA alignment offset breaks MAP_HUGETLB alignment Message-ID: References: <20260527143643.GO31091@soohrt.org> <5f70e840-9d0e-4cef-8574-b355cf26e0c4@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Queue-Id: A629D100016 X-Rspamd-Server: rspam03 X-Stat-Signature: 73fisi1hfbf5uhxpdbab99g3kcnhsh3i X-HE-Tag: 1779977000-437647 X-HE-Meta: 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 Y22Kzfhu OLSSgfJGxH2BSrnHr082e179xyRzUzdrTFFvhTsvEVTvUD2gzph2zt/9VNzs4Li63QEw7rBfb+eO1K8cb/3tB7RwC0w5slgb3oujtmgdedTTLT2AIYMJ4sLITmt1WcTAzuqDngjDNPC3rrguWRwhzZP6EddM7VUaGNi1a7CaVy+5cLOJnFfZi3JolpNabeL697WFt6Q2JZO2LyPWda/fxRb5c5Di7aT65P2B/XFOEkksz/JdesU/6XZuUGrV4sKRYSUri Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, May 28, 2026 at 02:45:01PM +0200, Oscar Salvador (SUSE) wrote: > The only thing bugging is, should not the same happen for THP-file-backed mappings? Aha, no, for THP we do not set align_mask (at least on x86), and the masking off is being done in __thp_get_unmapped_area(). -- Oscar Salvador SUSE Labs