From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2124.outbound.protection.outlook.com [40.107.223.124]) by sourceware.org (Postfix) with ESMTPS id E19EB3857C44 for ; Sat, 10 Apr 2021 07:47:30 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org E19EB3857C44 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=lBx8J4jUmwDBKo4+yMUlr+urPvO21bdzMXhRFrQWP/gM2zxTyC8nTyeCLzkqayByd6cvKLGVaJ+7bOjWHypN590mSNgr2BrTmDRpABlhleYvji8pJqvNfhb+HCgxXnQxGL8FQ/Fl5aHAOl+IFbYSQTCM+pXwiLsKlup/dlNQDZ6l5g6qQCpdPcb9zMd1a9KiclxFZ+fD8IEjT5OIjCyXhi2KG5t07vxl/j3HZxnooD9eZhIE5k/Tf0OhsvL7wm6nRgfK8wezgXCZ0M88xXaE8BM4p3zJ2/AbDNyV7jHGUlvYKpPWbzmWczUQmsbBzqPOyNEl9BrZbAuszDyb9CzqiA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PDoMANNbwAF5i2uvwIKd/98vW42YR2ydpqAYZuL7MX4=; b=jnEPNXIhtvwAC7pqD3G6lARtAur7DWOGshTcln0qVS9dYOlfwKBHMkhTvwR7dHviWSPK2T2j60kc44hf7rj6/va2IKBG7qFMQu069nbYgN2yEWpW1rxVQnwctGTcs593BggwCDrybfG768VxcZAccg9FiN8yi0nM8jH2xV2T3laAx9R1QgZPUe/C35yfCsM5yQSmt0FCSroLTJ3I9mzoltWRMXqOS9oJYLWE36xDfq8DygCrozdfL6Omp5VR+sdFB47Qjkla7WWSCf+Mx5+eIFufN+Jut6f3QToh3IgJk/Sr53RxPc+KpZsJBVM6fO5MSpeDxI065ApBqcILxQ5V6w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=imperva.com; dmarc=pass action=none header.from=imperva.com; dkim=pass header.d=imperva.com; arc=none Received: from SJ0PR06MB6990.namprd06.prod.outlook.com (2603:10b6:a03:27b::14) by SJ0PR06MB6928.namprd06.prod.outlook.com (2603:10b6:a03:283::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4020.16; Sat, 10 Apr 2021 07:47:28 +0000 Received: from SJ0PR06MB6990.namprd06.prod.outlook.com ([fe80::dda7:8b:e4d:f21c]) by SJ0PR06MB6990.namprd06.prod.outlook.com ([fe80::dda7:8b:e4d:f21c%8]) with mapi id 15.20.4020.020; Sat, 10 Apr 2021 07:47:27 +0000 From: Lev Olshvang To: "systemtap@sourceware.org" Subject: staprun in user space of production does not probe ! Thread-Topic: staprun in user space of production does not probe ! 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When I move compiled stap module to the production host (same kernel versio= n) ,no single probe is matched (except for end probe). I put simpe print st= atement in function call probe, work on development host but silence on pro= duction. Development and production OS and packages are exact the same exce= pt for C compiler and stap packages., production have only stap runtime. Executable under test compiled with -ggd3 -fno-inline -fno-inline-functions= -fvar-tracking-assignments --fno-omit-frame-pointer -pthread -fPIC -fperm= issive - I even moved the executable it probed from development to production host. = Still, no probe, no error reported. Dmesg shows stap module loaded, single line stating number of probes in scr= ipt and memory address. I compiled tiny C program. It works on both dev and production. Please help me to understand what is the problem. Thx. 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