Cover Letter Detail
Show a cover letter.
GET /api/1.1/covers/18340/?format=api
{ "id": 18340, "url": "https://patchwork.libcamera.org/api/1.1/covers/18340/?format=api", "web_url": "https://patchwork.libcamera.org/cover/18340/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20230305230603.3697024-1-dev@flowerpot.me>", "date": "2023-03-05T23:06:02", "name": "[libcamera-devel,0/1] fix: pipeline handlers: Stop exponential calls to `createPipelineHandlers`", "submitter": { "id": 154, "url": "https://patchwork.libcamera.org/api/1.1/people/154/?format=api", "name": "Sophie Friedrich", "email": "dev@flowerpot.me" }, "mbox": "https://patchwork.libcamera.org/cover/18340/mbox/", "series": [ { "id": 3789, "url": "https://patchwork.libcamera.org/api/1.1/series/3789/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3789", "date": "2023-03-05T23:06:02", "name": "fix: pipeline handlers: Stop exponential calls to `createPipelineHandlers`", "version": 1, "mbox": "https://patchwork.libcamera.org/series/3789/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/18340/comments/", "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 9140DBE080\n\tfor <parsemail@patchwork.libcamera.org>;\n\tSun, 5 Mar 2023 23:06:52 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id BB5606267A;\n\tMon, 6 Mar 2023 00:06:51 +0100 (CET)", "from mout-p-102.mailbox.org (mout-p-102.mailbox.org\n\t[80.241.56.152])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 59C6061EE1\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 6 Mar 2023 00:06:49 +0100 (CET)", "from smtp1.mailbox.org (smtp1.mailbox.org\n\t[IPv6:2001:67c:2050:b231:465::1])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\tkey-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits)\n\tserver-digest SHA256) (No client certificate requested)\n\tby mout-p-102.mailbox.org (Postfix) with ESMTPS id 4PVHQZ5fPrz9sbg;\n\tMon, 6 Mar 2023 00:06:46 +0100 (CET)" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1678057611;\n\tbh=JMDj3Ki654fMLqp0+npK52clEojWmhoFdupV/ZiTV24=;\n\th=To:Date:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post:\n\tList-Help:List-Subscribe:From:Reply-To:Cc:From;\n\tb=FPcDpuKJRzfsmZOhcgl5CBMVQ4Oj+py3u6b1CSWGunBj4XYvpsCGbXWS3hzUQhixo\n\tz+Ghpay7ZU/mQV7J5MD/Tewb16g8yVZzK0mNzU9XTuKTWnA1TW+HCVAUmfA24iUhaq\n\tf0fUVQ6i3ot6KtpSvQeyo3DEEsMlOpdkpVousk+dfiALaQ129yfk2OCodAvVoKgClS\n\toWX35M3WjkICxKZcGemOwI3/4QAv1wG55WQ2Rqa8Sl8c2XtAdOJHvsEEHclOYi40qC\n\tDuUfBdIt1uggNkIjQz3MljDQk8/eZzoWlsJ+cZyUXLmouRsjrMMGxi7FlT8mao+Kwb\n\tqEg3GcCx17l2w==", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=flowerpot.me;\n\ts=MBO0001; t=1678057606;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\tto:to:cc:cc:mime-version:mime-version:\n\tcontent-transfer-encoding:content-transfer-encoding;\n\tbh=USrzZlVppTqPEhfXNbZA9UAF91HNCs7XERjoI13gt3k=;\n\tb=P6zz+H0aSqa1eGAGXrBEpAwrnh2y/h4oH6ygKHaUVxVMicl3gkqAh0f16eJeU/jr5QUBHI\n\tl8O5u68S4cnW5PHr1TYDWcVA/kVHRxWJxsChsgde1m+cpvLOmhVtLLHenLI2K6aIQPp1AN\n\tyjntnsFyfClrDTis1/ORRa+2VTd2Jc0jlUp6sFjK9+6AChPocaL22DOb1kzSFnXFWEMh5W\n\t7dTmjo6TiiFAkblz5qvHR9bBXklPrY1JkUTPDy7+aBtkVFkrho/BhvVj08IGMlkPws1aDG\n\t4c86uQoai1/cGrjCXE5p2fOj58v8IkoQneeoiEusr+t9C88EK9pdqz4sKS1Cxg==" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (2048-bit key; \n\tunprotected) header.d=flowerpot.me\n\theader.i=@flowerpot.me header.b=\"P6zz+H0a\"; \n\tdkim-atps=neutral", "To": "libcamera-devel@lists.libcamera.org", "Date": "Mon, 6 Mar 2023 00:06:02 +0100", "Message-Id": "<20230305230603.3697024-1-dev@flowerpot.me>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Rspamd-Queue-Id": "4PVHQZ5fPrz9sbg", "Subject": "[libcamera-devel] [PATCH 0/1] fix: pipeline handlers: Stop\n\texponential calls to `createPipelineHandlers`", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "From": "Sophie Friedrich via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Sophie Friedrich <dev@flowerpot.me>", "Cc": "Sophie Friedrich <dev@flowerpot.me>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "While implementing the libusb enumeration through udev I noticed that\ncreatePipelineHandlers would be called exponentially often after each\ntime I cycle plugged a usb device. As it turns out there seems to be a\nbug in the camera manager which would result in `createPipelineHandlers`\nto be called exponentially often after each emitted event on\n`devicesAdded`.\n\nI was able to reliable call the above mentioned function over a\nthousand times after hotplugging my device only 10 times.\n\n\nSophie Friedrich (1):\n fix: pipeline handlers: Stop exponential explosive calls to\n createPipelineHandlers\n\n src/libcamera/camera_manager.cpp | 3 +--\n 1 file changed, 1 insertion(+), 2 deletions(-)" }