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Thu, 10 Sep 2026 16:11:30 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id S3dDDrLWomqlPQAAD6G6ig (envelope-from ); Thu, 10 Sep 2026 16:11:30 +0000 From: Gabriel Krisman Bertazi To: Jens Axboe Cc: io-uring@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 2/2] io_uring/net: don't overconsume buffers when using MSG_TRUNC In-Reply-To: <87a4pp2iog.fsf@mailhost.krisman.be> Organization: SUSE References: <20260902230041.1320658-1-krisman@suse.de> <20260902230041.1320658-3-krisman@suse.de> <0f5e8693-dcba-4fa8-87d1-570ac08e2d83@kernel.dk> <87a4pp2iog.fsf@mailhost.krisman.be> Date: Thu, 10 Sep 2026 13:11:27 -0300 Message-ID: <875x0d2ij4.fsf@mailhost.krisman.be> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-Spam-Level: X-Spam-Score: -4.30 X-Spam-Flag: NO X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MISSING_XM_UA(0.00)[]; HAS_ORG_HEADER(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,mailhost.krisman.be:mid] Gabriel Krisman Bertazi writes: > I'm folding your fix up in the v3, modulo a compilation error. It only > changes the error path, the bug is still fixed on 7.3 with your patch > folded in. Please scratch that. I misunderstood your previous email. I see you applied it on io_uring-7.3 with your fix up. Looks good and the test still passes. I'll turn it into a liburing test. > Any suggestions on how to test this error path for liburing? > I got a test for the bug, but testing ret<0 means failing the socket. > > > -- > Gabriel Krisman Bertazi -- Gabriel Krisman Bertazi