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Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qidBi-000VvE-KN; Tue, 19 Sep 2023 16:02:58 +0000 Date: Tue, 19 Sep 2023 17:02:58 +0100 From: Matthew Wilcox To: Oleksandr Natalenko Cc: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Andi Shyti , Andrzej Hajda , Matthew Auld , Matt Roper , Aravind Iddamsetty , Fei Yang , Thomas =?iso-8859-1?Q?Hellstr=F6m?= , Nathan Chancellor , Chris Wilson , Daniele Ceraolo Spurio , Andrew Morton , linux-mm@kvack.org Subject: Re: [REGRESSION] [BISECTED] Panic in gen8_ggtt_insert_entries() with v6.5 Message-ID: References: <4857570.31r3eYUQgx@natalenko.name> <6287208.lOV4Wx5bFT@natalenko.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 7E47B4007E X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: p779bxhdkwqnt6ppxfwee6wdprma4fcu X-HE-Tag: 1695139399-644989 X-HE-Meta: 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 CNcbZr1r 2rYgxJRanDPffga2oO/XqzpSQYM1b1msEjViWGO2RVV1l212+cIeKl6eoKCXvxa6SU9lNQqnNdhrOe+G291zlNfQw9wetQI5qwFtFBOYHdur9LGk7mPmqGfUpTQYSvi6VFY5Vvlaq48g+aBQPDtZqIUR+etxlXTusPDGKKfuy3apXREJoGu6dFXKZPg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Sep 19, 2023 at 04:43:41PM +0100, Matthew Wilcox wrote: > Could I ask you to try this patch? I'll follow up with another patch > later because I think I made another assumption that may not be valid. Ah, no, never mind. I thought we could start in the middle of a folio, but we always start constructing the sg list from index 0 of the file, so we always start at the first page of a folio. If this patch solves your problem, then I think we're done.