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b=G+gl7nFzeTofUcm536xpOmm3Qw/J3YD2DA7/AVAd83QME9pVbEoosQksjVWi1/HCMZcfJ5 1azFTqhIalv1JIfR74tCSWnxaAA/nKmMVxTAMtuy5BG/KHVWlCJfQp1v/h+4VA3gwUJoV+ Am8NofUvQEQC7cr27qJQ3+mA798vWkaEhGBNwa8ojcCYa52ZRrDC7w+E8xCegyCJ7Jj6Y/ OYM0UNPvbm22X6IeM2w7ZCjRTGYGoqZ3symSV1GP0dd0oVE9Tmw9UYd8gkxPDqV+hkrWLw 38uGDtuXRSeRPilAgrashdU5X3BpvXQksLZ35ypFTbwiySug/XgEo5HZ6c5Dyw== Received: from localhost (gaia.codewreck.org [local]) by gaia.codewreck.org (OpenSMTPD) with ESMTPA id 1599ead8; Tue, 27 Aug 2024 04:38:17 +0000 (UTC) Date: Tue, 27 Aug 2024 13:38:02 +0900 From: Dominique Martinet To: Steve French Cc: Forest , David Howells , Steve French , Shyam Prasad N , Rohith Surabattula , Jeff Layton , linux-cifs@vger.kernel.org, netfs@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, regressions@lists.linux.dev, Christian Brauner Subject: Re: [REGRESSION] cifs: Subreq overread in dmesg, invalid argument & no data available in apps Message-ID: References: <37fncjpgsq45becdf2pdju0idf3hj3dtmb@sonic.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 508D780004 X-Stat-Signature: rmm41kxysm3j9at4we6wdo6dtyyntcp3 X-HE-Tag: 1724733505-371839 X-HE-Meta: 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 gsaij67t eetH5AB0l5KCiR6btjMKjXAXF7v5j1pkxOLCZJEUJsLuW/TxaORa6UcMEvxQ94yqFGJLdN2gg+xA1a2ORtN9x8y7g4Vr874Gdhjtv9TK2WwBGl3rZf0EINpSpOmo/5KF+83gmnd8Ho/YYi4C9cQ6zLU1fDyef+HKbn4xi6rTPeG9h89tM2smOigINnEdefcG3jWf1wg54pigiKTHio9lM7w7OT9Vm/NIMssxq0BqdLWhtNL9sSqWe6yRoDITr+4NCh/YUARkizbumbO27b/0LqQdVPvFdQjkypctFiIRHUnF8mU2tKlILUrwl1uDzuC1305CYtXC1Jr7CooYWj+SKFt+TWyx9rQDUZP4f 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: List-Subscribe: List-Unsubscribe: Steve French wrote on Mon, Aug 26, 2024 at 11:27:33PM -0500: > I have also confirmed your theory that the regressions (there are > multiple) were likely caused by the netfs change added between > 6.11-rc3 and 6.11-rc4: > " 9p: Fix DIO read through netfs" > > But reverting the cifs.ko part of that patch alters the error but does > not completely fix the problem, so the netfs change is also related David sent a bunch of cifs fixes including this patch: https://lore.kernel.org/r/20240823200819.532106-8-dhowells@redhat.com "netfs, cifs: Fix handling of short DIO read" I don't have any samba server around to try myself, did you have a chance to have a look? That "9p" commit touches all netfs filesystems and definitely shouldn't have been labeled 9p (even if it does fix a 9p regression from an earlier netfs commit...), and this all feels a bit like falling forward but hopefully we can get this all fixed by the time 6.11 is ready... -- Dominique