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Tue, 03 Nov 2026 07:27:24 -0800 (PST) Received: from Termis-ROG-FLOW-Z13 ([2001:16a2:4495:e600:87e0:1189:3df6:ff07]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4b2aa481a45sm60171945e9.7.2026.11.03.07.27.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2026 07:27:24 -0800 (PST) From: Seifelden Abdelmonem To: Caspar Adriani Cc: Bin Du , Nirujogi Pratap , Mauro Carvalho Chehab , Sakari Ailus , Benjamin Chan , King Li , Yifei Gao , Sultan Alsawaf , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Seifelden Abdelmonem Subject: Re: [PATCH] media: amd: isp4: fix self-deadlock in isp4sd_start_stream() error path Date: Tue, 3 Nov 2026 18:27:07 +0300 Message-ID: <20261103152707.90152-1-saif.elden.hatim@gmail.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028-isp4-start-stream-deadlock-v1-1-babd80273148@proton.me> References: <20261028-isp4-start-stream-deadlock-v1-1-babd80273148@proton.me> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Tested on an ASUS ROG Flow Z13 (GZ302EA) with v7.2.10 and an out-of-tree setup in which the OV13B10 streams (NV12 1920x1080), with this patch applied on top of my two isp4 fixes [1]: - stream with the format set: 90 frames; - stop, then stream again without setting the format: VIDIOC_STREAMON returns -EINVAL after "fail to get out prop" and "fail to setup output", v4l2-ctl exits and no task is left blocked; - stream with the format set again: 90 frames. No hung task, oops or WARN in the kernel log. I did not run the sequence without the patch on this setup. Tested-by: Seifelden Abdelmonem [1] https://lore.kernel.org/all/20261026182442.229869-1-saif.elden.hatim@gmail.com/ Regards, Seifelden