From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-5.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham autolearn_force=no version=3.4.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id A37E17DE74 for ; Tue, 8 May 2018 09:46:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754774AbeEHJq6 convert rfc822-to-8bit (ORCPT ); Tue, 8 May 2018 05:46:58 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:60316 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754729AbeEHJq4 (ORCPT ); Tue, 8 May 2018 05:46:56 -0400 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w489hxhx064970 for ; Tue, 8 May 2018 05:46:56 -0400 Received: from e06smtp12.uk.ibm.com (e06smtp12.uk.ibm.com [195.75.94.108]) by mx0b-001b2d01.pphosted.com with ESMTP id 2hu6kx0e03-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 08 May 2018 05:46:56 -0400 Received: from localhost by e06smtp12.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 8 May 2018 10:46:54 +0100 Received: from b06cxnps4074.portsmouth.uk.ibm.com (9.149.109.196) by e06smtp12.uk.ibm.com (192.168.101.142) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Tue, 8 May 2018 10:46:47 +0100 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w489klPv6881762; Tue, 8 May 2018 09:46:47 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 76EF142047; Tue, 8 May 2018 10:37:50 +0100 (BST) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 439A742045; Tue, 8 May 2018 10:37:50 +0100 (BST) Received: from localhost (unknown [9.124.35.77]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 8 May 2018 10:37:50 +0100 (BST) Date: Tue, 08 May 2018 15:16:43 +0530 From: "Naveen N. Rao" Subject: Re: [PATCH v3 6/9] trace_uprobe: Support SDT markers having reference count (semaphore) To: Masami Hiramatsu , Ravi Bangoria Cc: acme@kernel.org, akpm@linux-foundation.org, alexander.shishkin@linux.intel.com, alexis.berlemont@gmail.com, ananth@linux.vnet.ibm.com, corbet@lwn.net, dan.j.williams@intel.com, fengguang.wu@intel.com, jglisse@redhat.com, jolsa@redhat.com, kan.liang@intel.com, kjlx@templeofstupid.com, kstewart@linuxfoundation.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, milian.wolff@kdab.com, mingo@redhat.com, namhyung@kernel.org, oleg@redhat.com, pc@us.ibm.com, peterz@infradead.org, rostedt@goodmis.org, srikar@linux.vnet.ibm.com, tglx@linutronix.de, yao.jin@linux.intel.com References: <20180417043244.7501-1-ravi.bangoria@linux.vnet.ibm.com> <20180417043244.7501-7-ravi.bangoria@linux.vnet.ibm.com> <20180504134816.8633a157dd036489d9b0f1db@kernel.org> <206e4a16-ae21-7da3-f752-853dc2f51947@linux.ibm.com> <20180508005651.45553d3cf72521481d16b801@kernel.org> In-Reply-To: <20180508005651.45553d3cf72521481d16b801@kernel.org> User-Agent: astroid/0.11.1 (https://github.com/astroidmail/astroid) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8BIT X-TM-AS-GCONF: 00 x-cbid: 18050809-0008-0000-0000-000004F449E8 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18050809-0009-0000-0000-00001E888A7A Message-Id: <1525772725.o3tzigt8c3.naveen@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-05-08_04:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1805080095 Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Masami Hiramatsu wrote: > On Mon, 7 May 2018 13:51:21 +0530 > Ravi Bangoria wrote: > >> BTW, same issue exists for normal uprobe. If uprobe_mmap() fails, >> there is no feedback to trace_uprobe and no warnigns in dmesg as >> well !! There was a patch by Naveen to warn such failures in dmesg >> but that didn't go in: https://lkml.org/lkml/2017/9/22/155 > > Oops, that's a real bug. It seems the ball is in Naveen's hand. > Naveen, could you update it according to Oleg's comment, and resend it? Yes, I've had to put that series on the backburner. I will try and get to it soon. Thanks for the reminder. - Naveen -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html