From nobody Tue Feb 10 21:38:49 2026 Received: from NAM04-BN8-obe.outbound.protection.outlook.com (mail-bn8nam04on2060.outbound.protection.outlook.com [40.107.100.60]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 643722D600 for ; Mon, 6 Jan 2025 07:20:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.100.60 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736148047; cv=fail; b=dIhLGgeZJ5mk2LpNFE8tBgiIDhIA0XUwL4nBNrycQzD32GFenPcWGmu7kYRTkE5v00IYjwRbLow+qNk4PsFdU7RSoqFUtPPpFsIboJ5PhNJdMZhLQ7Bk+2QTDd+trww1n1YI0TF5qKY6YEFU1iI+YTLrMgE9G8uKO5xd0hkwb6U= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736148047; c=relaxed/simple; bh=FiIFsPIjftLZ+UUnsqs712vGFNCwAU3oT2r4h/iVGFc=; h=From:To:Cc:Subject:Date:Message-ID:Content-Type:MIME-Version; b=tDCO7BiDke5HNULNIM3HMp43z/kNndpFHa9t+ZxFResJvUwZJLfZ+me+hWfNT3XOUbWk9AqI0eidlQQ8stvNBipFI0K+8O0+/13DDBNR+Y0LzErNtsImmz4Q+o+sXgL3fu7OS2lSgjuhss61Q4pcQqx4SZlmNQpVe/mGJ469RSo= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=PpcTtpGj; arc=fail smtp.client-ip=40.107.100.60 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="PpcTtpGj" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=jQFfa76q0A1XI8vM9PALSfFyR2gqVXzH7vzmuxWg40ZOOwehqp7ze3iF7UV5Tcx6r115CvVXYDXd4e6M1lNVy9mR30sShClX+9iGppuIWqcl9usdJB3/ZWFPDNktFsV2FyXFfA72viCV6X6NxTwTurv8XqTnbzfn9xOoJqNjilXqkoKjTdGb1jNfkkyXuE01pQVQ5ik5phggqoH6pqhihf8OZyQNvrNnE1p1pj9j7xShXHY6GYANIoKnJOfVSTnFcbwaqROVD6xZlenIFkXyjaHBEM92Iw5yMBcOCeYCT4OMmHBP1syvvyNjqcabsI9QyMqvtvD6w/JHsPvlObahUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=iPK0MR8i64gyHhJUHsbB6p/z4i69FG4IguCUGPC9qp4=; b=Wc9ehTR5+kGQNd7K7jTkBINd35LKpNUA7CZ/T5TYSmE7CsjKisLSIA0JgyZtrclfPVSy03Eti2vttRz8QzPP43wWiMcPrMhBOSJ9JKqEZ0gj7MG33LhEopVEfxWtjMIN/kHNbaLJ05soeGNSWtQCLl1WI3web5GhndnIMGlMC/n+11EzdfMBF6Id6Wtq0rOWC+GQzObA8EpjutHowZSv79vyQEJXzoo2nrYjNFvAtxHQ71fp1HsY2A+dgNwQNR31gt22Fr4hHb+BrX/Lifn6mbgX84AIfvZxsDzw5heHxzMRFFHmA+QoY28nY1dmO37VLzjMLBU/tW0j23e56suShg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=iPK0MR8i64gyHhJUHsbB6p/z4i69FG4IguCUGPC9qp4=; b=PpcTtpGjnX3DaguwsS8eLkjYp06XAqDCx+xzrgRgq1DWYC09sSr2v9DhCivW5XkMHWj8/TwFal3jKtIsN96wjW1gBPkw18QD9mxJhb5myNdQwX6igl6+YMG/JLRBc/8R3TQUT/lN+ZmKbZ29GJ9ouDNQOv5xoNAzsNeY6zsbFmO6deePIGE2/HcoQWGXsf7W5UmI0F5Nm4Jj+ws5xaTOGY3Ry/0ri4/mzAA7OBJe2fQq9NFcHcKtULR5AV2k7kxJmAjsX94MuLakHp+HsCrZ4IxrJy0qhSzJiaJJF1DN0SRJi8WAVDus8HQ2gH75jr7shA0wM+lhTFuKYxXfms3yFg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from CY5PR12MB6405.namprd12.prod.outlook.com (2603:10b6:930:3e::17) by LV8PR12MB9406.namprd12.prod.outlook.com (2603:10b6:408:20b::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8314.17; Mon, 6 Jan 2025 07:20:39 +0000 Received: from CY5PR12MB6405.namprd12.prod.outlook.com ([fe80::2119:c96c:b455:53b5]) by CY5PR12MB6405.namprd12.prod.outlook.com ([fe80::2119:c96c:b455:53b5%3]) with mapi id 15.20.8314.015; Mon, 6 Jan 2025 07:20:39 +0000 From: Andrea Righi To: Tejun Heo , David Vernet , Changwoo Min Cc: linux-kernel@vger.kernel.org Subject: [PATCH] sched_ext: Include remaining task time slice in error state dump Date: Mon, 6 Jan 2025 08:20:34 +0100 Message-ID: <20250106072034.74749-1-arighi@nvidia.com> X-Mailer: git-send-email 2.47.1 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: FR0P281CA0047.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:48::18) To DM4PR12MB6424.namprd12.prod.outlook.com (2603:10b6:8:be::16) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY5PR12MB6405:EE_|LV8PR12MB9406:EE_ X-MS-Office365-Filtering-Correlation-Id: c8411e63-0822-4e9a-2b00-08dd2e229f3d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?COPs0qpXuDOYLP0EDi0qrhLtCeLE24LTHhrMtA7fvGz7kp+oQk27nQOY41+s?= =?us-ascii?Q?ONfo6CfdqtYM99c40/iUfn0olhuCrnORSRlHP9yibZPzb0xAsEJQD1i3Cxyk?= =?us-ascii?Q?bj/Gip5t1DmpKaMfYzo1ZrXmaRbS/jtq6263/W12FCar4aXo6mjkqHRyQ7P5?= =?us-ascii?Q?IqgEYUbozxnw30k7ZoqysTWcdVlCi/vp19A1OZJmmoSQgwbu2cpf6ojFFBaT?= =?us-ascii?Q?gyyDmC9p7X+3bFegGE8czex6BdecFtaXVGAREtSCLptvh3vHv4/CMXQpB9xF?= =?us-ascii?Q?0nl7Cu0OvSGNFWC+lSXWBUjONGL62jamz9jln59oNvbA3e8M0meny6UOYQft?= =?us-ascii?Q?Ik21LCVAgMBIt0KVZtQYXGlRZLsg8vGuAxCDg3xywn6RXSuEjzi7zDNn9c4g?= =?us-ascii?Q?enhXIdInuAFJIAsoC/r8YeDgRByAtzEW908caoYiTgH7WLLDPC5cXdzCs2m7?= =?us-ascii?Q?hKT8+T+q+s90irkvb27UHdbOiXXyEdr7ps+ejnOAxTHiNjhkj9bNeztfrEBa?= =?us-ascii?Q?PGt5kIpNae/Lu1X/fMkYhnWr9zH1keLFm5bMzsO3N4StHquAwiqdf06GRiMl?= =?us-ascii?Q?LO8NAcHw+49Hfhwd6cDZ1RjzijN+MhRhKzXcI2qFKydZy4ZzcPMwo73vcpB9?= =?us-ascii?Q?H+bbsN76qXtZVNksd/1LM2yxxetCAi+zFs9vGL5oIWGWzUrTM72M3kU4Jp+/?= =?us-ascii?Q?5zAVatlQuubTmWDQkFvr4amxTTyHXC7Renr8+0Z+BNaHUga/cZ3slKQvvdr8?= =?us-ascii?Q?rixW1RCLsciuEBaSToXqM33QQeY4xm+MdfSWLOR40MIvVNZ2jQYDM6fW5Cmp?= =?us-ascii?Q?C0a4DeQbjRLXw27JyeGTbfL6/J6FI8jgqdjGi8QcAEqrphgvnu7+TmQ61l+t?= =?us-ascii?Q?rwkvx1kUgwqjtyR6PR12N4fzVZOAiy+mBm/2UNGs2Y7TvBkUkLir5oKmjXWQ?= =?us-ascii?Q?vVeaHwYVuUx5w8TJlknI4aIWv4CpW8X2vgSuAzeA3j6/N09ZMipFtFfThxo4?= =?us-ascii?Q?MBlrKa/RF5z0niDQHydwhRoS6fgofgPSz6sitYeFXRXkBMNbPTz2/E0+y/kd?= =?us-ascii?Q?zLnzQd/jNvK/xKDr13dTHoFOHjyHSP3HEv8P4miDfbZ97gz3umASQmql05d9?= =?us-ascii?Q?hHacf5tbZG7CDqkQeoLYo1gsY+BTILJAqUpO4Jdzl77+RE3repqUaZItxA4I?= =?us-ascii?Q?u9qtXVwvyH8uBFLHcSbsbh0qvS7bIX6JSXcnNnpLFO8L8AtH9pdMjNRBPBkD?= =?us-ascii?Q?27MS9WhlPQrY5VOofyZw0I0qwW1GIp5KME8zUvbocRlC0BGSvpTrJBITrgFw?= =?us-ascii?Q?PvLAZrrV/Xk5X3+h1Ot/qnHj3pm3HHK56BsVwdAsUOP1TiC0acRBmBOegq1M?= =?us-ascii?Q?6kKQMb0ZEdWxfgd4OWPturIKtvMN?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CY5PR12MB6405.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(376014)(1800799024);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?rN5W0O3AhBb5uEXabsJFglDc0/UlcqXr6e2hP0DKVOe5Us5ZMcpYaw95cLPa?= =?us-ascii?Q?GZFvLs9M4y2+FvSpp2CJOiM8r+d9aOyOETCRHyxgwNw2sGVbcLdpAVX+USvS?= =?us-ascii?Q?2vqGHjSxKy70sM7cfVk0tW89AZ2MT/Oh6p6z1q0iyJPdebl7syxmzaEQQcQx?= =?us-ascii?Q?wT2hM5vlNjFdGvyezLMzq1Fcwzc458ddmE0yHvJKyyShS9PP2i6UQ/ulbcFT?= =?us-ascii?Q?Ul2AM4uh9Yh12pxHl/F7QHyUTD6/7KXH4FItjPnKH1C+kCtI4H1hVzsN8IPL?= =?us-ascii?Q?ARAiFScUd4DSbvXInoLE/Iysw1KzhRv5SxdY9BrqHJ4Wd7X4eksq6H/o0dQJ?= =?us-ascii?Q?bgDTmENLBQnmZiUX+TtYfo5/j4DSq8x0kKkoRW18Pt2FH9Chdn+tVS9Sl10q?= =?us-ascii?Q?IpKoKBU3Um0HVr48cd6CmXPlvCXyARjUPPfRHqNZZ/CDr067bDqa9yBcHVtu?= =?us-ascii?Q?7I8sinp5DFQ6Ft/F/lvOXb7ukRmuZkgcaIuyWhO0gEyixQ44rjj8r/Qc0Pwm?= =?us-ascii?Q?F1w1gwCaeqy8GRSYSHDhtaNquIBN9l/SAbiqhC7RL3fZvccybZPa/m0VwPtf?= =?us-ascii?Q?qKqG+E5F6mu3R+A+ja7PiKVYGi3vS/aUFF6okZBN+h4/zawY5NJMjddrRiXJ?= =?us-ascii?Q?pTYnbsTl1T3mORUUOE3Vj167JcwEGFukgtQXK1iEFJNiTmcVQKqxXgAymiAG?= =?us-ascii?Q?ytiwqxNQ57tgS2dedjqUQOKOJZ+HqNde9Fphgv/yvr0qe+rLkeyI29E9Nf4F?= =?us-ascii?Q?L8KNvX0HGEMQAVskFfu637v0JN9bOmugZ3PhwdSSPBzvvjwKQLHrbote0Nki?= =?us-ascii?Q?tIjsFkwW61ZioOLY522j/WFZoWPNwG0tkt79STaE4HPA63iw6QPVTi2pwbv0?= =?us-ascii?Q?6lRygyFaKMJb7N37ra14TgKUcGOAzGXMfzhbgCgonYMicwKJWpiJNqReVG9S?= =?us-ascii?Q?R94Pm4cLqJNTmKx9r7vcyrkonZupHNeJAVG/QDbwnFurJUwXG5SB4bA1myto?= =?us-ascii?Q?Hjmrh2TFRC7OzgIyHT8PbuBaOji6fdsxPoXa66EBIukQba/hK3Au5HHnfQl0?= =?us-ascii?Q?GLA8AcYkn87jsHXJiDpZsE/YKX1ATkhFaachNLKDnCvlONSoXZmpe1ja+c4F?= =?us-ascii?Q?QT6m/hgsEc8lQCxj9Za5lydlGaPQsO/m7IV2y3mJXmkD6Jc5QFnX3XwFAQex?= =?us-ascii?Q?tbDafx/Tt6iArkKElMnVu6b9xiWEG6cLWrD9fkF5hSL3h3FZeahLDrwpPQFo?= =?us-ascii?Q?EXoxjkJy6vmjQbJZqkFlnKRsZgR0Sy1Z5XcMCA/L0KkYluteVXNfgCP42wWR?= =?us-ascii?Q?wVRrj49RluCzOUBIJ7JzImUFxuWEG8Lo3S/yE6CJd8L1M+YLQouppK0T0AQO?= =?us-ascii?Q?QGcPIX3X3HYw5RfjwDAfPjYeq+Ve+LmRffmE6D/J4m9xd9YgLo3qIIon30z5?= =?us-ascii?Q?qGwkrfnkBYhsYNXlgLtqEs9hptQ8yJQtUU/YIw9cFr2HIXDa79zQh8WqqnuP?= =?us-ascii?Q?G4I+RxoJXZc1s+sZucwhjYTQLwOYArzLVfJFJIp5g32PuRpJoDbppkLsf7mh?= =?us-ascii?Q?9rbC+QBFXQH+QllVXXWS4DIs32Gp58/lU7NofPoI?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: c8411e63-0822-4e9a-2b00-08dd2e229f3d X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB6424.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jan 2025 07:20:39.6569 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: dU9gAhZidKBDuvIJ9Unb5MhC21rHnoj28VbX4uCVU5DdvBosK9AGVnWuWoSLdKsTZNiuCmImeNz+BwQ/FQp6uA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR12MB9406 Content-Type: text/plain; charset="utf-8" Report the remaining time slice when dumping task information during an error exit. This information can be useful for tracking incorrect or excessively long time slices in schedulers that implement dynamic time slice logic. Signed-off-by: Andrea Righi Acked-by: Tejun Heo --- kernel/sched/ext.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 0ce116e0f67c..010ce7680bbc 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -5218,9 +5218,9 @@ static void scx_dump_task(struct seq_buf *s, struct s= cx_dump_ctx *dctx, scx_get_task_state(p), p->scx.flags & ~SCX_TASK_STATE_MASK, p->scx.dsq_flags, ops_state & SCX_OPSS_STATE_MASK, ops_state >> SCX_OPSS_QSEQ_SHIFT); - dump_line(s, " sticky/holding_cpu=3D%d/%d dsq_id=3D%s dsq_vtime=3D%l= lu", + dump_line(s, " sticky/holding_cpu=3D%d/%d dsq_id=3D%s dsq_vtime=3D%l= lu slice=3D%llu", p->scx.sticky_cpu, p->scx.holding_cpu, dsq_id_buf, - p->scx.dsq_vtime); + p->scx.dsq_vtime, p->scx.slice); dump_line(s, " cpus=3D%*pb", cpumask_pr_args(p->cpus_ptr)); =20 if (SCX_HAS_OP(dump_task)) { --=20 2.47.1