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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?owulQkKyJnM8uO8pKiY/tdoYMGOLU/kGk/qXY5Du5InMKFEVEGs/aPzsE+ei?= =?us-ascii?Q?4yPTxC+PWBw6CLYcxnHOb1VMp0sL5o18W9TgtmbjfpjcUZ0ZJFwGYithiocw?= =?us-ascii?Q?/t+rAAlILf0M4EREYq1jY0BkaqmT5Sn9yVRPABduc+UnPMWDXawJWheQiKu/?= =?us-ascii?Q?qYuOG10P5g9pR+E7zXqv57qJs6v5d3Axf/ce9c1iW+zWOoEBFjiaPAHd/nmf?= =?us-ascii?Q?0M1TmJXebQ0AJll5TtlGbe/L4xw5cupdDfJu8BUimqmIXk/Zalvv0djrEpG5?= =?us-ascii?Q?BdmpeYZ1pUksmZo4DlkAq+3/mMyA/Ni/QebbWCkPSnvBgNnxWUVkU4Q7p2gQ?= =?us-ascii?Q?jOXFdbMaXy2WsOQnhx9Tm5fZnCxLrzBqSLPEga7VpWo4Owa/YJBTveVv02p4?= =?us-ascii?Q?ckVxxkbe0NwD3CA7dj2sQQ5fejcE2mlmte9NoY1UGrdw/xg76131RrDCAuSa?= =?us-ascii?Q?SBqAOnxLILiMJjFjSbpDinhU9ZO3Vga81dQMRH4DoQTliDsj5AdbQ8etQH6X?= =?us-ascii?Q?dzIj3nY/rDK6jZeoI8QgfQvpNgAgb44Y+KNge+7vStS19DYAFSD/LJxxPCGV?= =?us-ascii?Q?xDyXW337WBoWCKvH5cfD+hepotqKDnBMKLvOUlxFsHzSTag/AcKcRGTwys5m?= =?us-ascii?Q?hwvPtgpTOVX8Mp5xPeZ2DPtCR969q9Qe42eFsj28o4L54ShxQsZXDvWiHfPR?= =?us-ascii?Q?N8me13Pz6r1u8NXKzwf45Z+TI9viyLDyCn/zqK+cAqKdooqilKkbsKlWoSFx?= =?us-ascii?Q?N/+a3tcPeDspetXZ+qQER548vrRy2FLXu3aHxFKAtbQ9vJGod7SKXu/iVm+6?= =?us-ascii?Q?n4RommMFxAcMgaCcjDq9LoUg6rVCulUi2U5iiEuzHzgM/+p+G/TpvHYlyRMf?= =?us-ascii?Q?glgEhbLfVkrHKHQ0oDWUdYfinfEitEcMku3tU+XBwTJ9ncqE/Gg2A7ON0aeV?= =?us-ascii?Q?DI0Sdtm5RBWsYZbYlxxCxB5GrsAYWqhUH+o3ids7YoUCmohEMbQhTzG6eiLi?= =?us-ascii?Q?Q2vmhNSc0DYBn2dqAwASLBKhi0KQeFNn7RQApNCwSGt/SV4/j5oV+EkEJI+T?= =?us-ascii?Q?HP2MiOYvlFa3tqiMn2MU/JPkl6XdXinpBr03dll+Bgz3txKpF82y6o6DvfrT?= =?us-ascii?Q?R/OKRYPivHVoWHBnep3ZYMHkry+u7mmHbGG3ZRLrKP0uz0NflTE/1i+Q4SqT?= =?us-ascii?Q?9AY3KvRQJOtF0x6IZIlCJJ892pe5q6N2FL3ZM7TJpaj6vnDc1QnES+xoQqt2?= =?us-ascii?Q?1TMp+rlQuO9MtBs8buHzbMS9wy3BQY+bOmxKVQRq3KBlTvVnOdOLPQ2mimyE?= =?us-ascii?Q?woSiiDcmEMG87e/DYr1LGnmRHcMjQ4CD4cg60s+axSvEqLQgPmvnI0gkAsoh?= =?us-ascii?Q?Ab0eaMNUe+AUF9UwmwgQi/R9oCy8BTbIfCe7y411ya0qX/mx4d999zoBeHm9?= =?us-ascii?Q?6EIIhzjIEZTCaEsbh1hc4j00bQSKEUM281wvy4eomyP5OfCetvSCSwd5ptV0?= =?us-ascii?Q?EURZ0yxgzxq4mKqkBqbTI5EkH16fCyWjrL86vVDIU0QmiReTh7hWSwwsphoO?= =?us-ascii?Q?3YAAxUDyOOYlNwBEsdoC1rB9/6vqE8jxf/XDsEvBd7Mre2dw6/mWHugwwRqN?= =?us-ascii?Q?kwx2yrB9dozyIoGkAEPgirHIQkNSP5kmGJq9TAWwzi7R2iAhY/wxxFHcab53?= =?us-ascii?Q?NRCmneLxedp/s7z0cvEquVpqORC8KXsxM1+6Q1rbEtyAqxjF?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: baf3a9ce-027f-4e83-34da-08de4f6f5907 X-MS-Exchange-CrossTenant-AuthSource: LV8PR12MB9620.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Jan 2026 11:07:58.7751 (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: LHJrk9fUkWg4Va7HIrgl6uTNWJvre0yEyV4fHuyumOUxg1QfA/4krGJKVFCWRO1Pvp4Q9AOMBiG0a1ygMgxKNA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB6681 On Fri, Jan 09, 2026 at 06:39:16PM +0800, George Guo wrote: > > Huh? No, we already get an error message both in dmesg and in stdout when > > scx_bpf_create_dsq() fails, so I don't think this is required. > > > > Are you sure you were not hitting other issues when your scheduler failed > > to load silently? > > > Hi Andrea, > Here take an instance. > You need add bpf_printk in BPF_STRUCT_OPS_SLEEPABLE(central_init), > even with dmesg when central_init fails, as central_init have multiply > error return. Ok, then maybe we can add a bit more information to the error message, printing which DSQ failed to be created, for example: scx_bpf_error("failed to create DSQ %d (%d)", SHARED_DSQ, ret); This would be more helpful I think. Thanks, -Andrea