From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sjdcvmout02.udc.trendmicro.com (sjdcvmout02.udc.trendmicro.com [66.180.82.11]) by sourceware.org (Postfix) with ESMTPS id 24C823857C57 for ; Tue, 8 Sep 2020 11:15:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 24C823857C57 Received: from sjdcvmout02.udc.trendmicro.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 87A2364061; Tue, 8 Sep 2020 04:15:19 -0700 (PDT) Received: from sjdcvmout02.udc.trendmicro.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7462864089; Tue, 8 Sep 2020 04:15:19 -0700 (PDT) Received: from SJDC-EXNABU01.us.trendnet.org (unknown [10.45.175.97]) by sjdcvmout02.udc.trendmicro.com (Postfix) with ESMTPS; Tue, 8 Sep 2020 04:15:19 -0700 (PDT) Received: from ADC-EXAPAC12.tw.trendnet.org (10.28.2.229) by SJDC-EXNABU01.us.trendnet.org (10.45.175.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 8 Sep 2020 04:15:18 -0700 Received: from ADC-EXAPAC11.tw.trendnet.org (10.28.2.228) by ADC-EXAPAC12.tw.trendnet.org (10.28.2.229) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 8 Sep 2020 11:15:14 +0000 Received: from ADC-EXAPAC11.tw.trendnet.org ([fe80::35d2:8fa6:df0c:6aae]) by ADC-EXAPAC11.tw.trendnet.org ([fe80::35d2:8fa6:df0c:6aae%18]) with mapi id 15.01.1979.003; Tue, 8 Sep 2020 11:15:14 +0000 From: "Eddy_Wu@trendmicro.com" To: "peterz@infradead.org" CC: Ingo Molnar , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , "davem@davemloft.net" , "rostedt@goodmis.org" , "naveen.n.rao@linux.ibm.com" , "anil.s.keshavamurthy@intel.com" , "linux-arch@vger.kernel.org" , "cameron@moodycamel.com" , "oleg@redhat.com" , "will@kernel.org" , "paulmck@kernel.org" , "systemtap@sourceware.org" Subject: RE: [PATCH v5 00/21] kprobes: Unify kretprobe trampoline handlers and make kretprobe lockless Thread-Topic: [PATCH v5 00/21] kprobes: Unify kretprobe trampoline handlers and make kretprobe lockless Thread-Index: AQHWfgRSCESp9PK2qEmaIhlcIgCeUqlUKmsAgABcEYCAAGuCAIAAFReAgAAV4YCAAD5dAIAABowAgADIVwCACHHjAIAACFxw Date: Tue, 8 Sep 2020 11:15:14 +0000 Message-ID: References: <159870598914.1229682.15230803449082078353.stgit@devnote2> <20200901190808.GK29142@worktop.programming.kicks-ass.net> <20200902093739.8bd13603380951eaddbcd8a5@kernel.org> <20200902070226.GG2674@hirez.programming.kicks-ass.net> <20200902171755.b126672093a3c5d1b3a62a4f@kernel.org> <20200902093613.GY1362448@hirez.programming.kicks-ass.net> <20200902221926.f5cae5b4ad00b8d8f9ad99c7@kernel.org> <20200902134252.GH1362448@hirez.programming.kicks-ass.net> <20200903103954.68f0c97da57b3679169ce3a7@kernel.org> <20200908103736.GP1362448@hirez.programming.kicks-ass.net> In-Reply-To: <20200908103736.GP1362448@hirez.programming.kicks-ass.net> Accept-Language: zh-TW, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.28.4.6] X-TM-AS-Product-Ver: IMSVA-9.1.0.1960-8.6.0.1013-25652.006 X-TM-AS-Result: No--13.579-5.0-31-10 X-TMASE-MatchedRID: fisHOP3cX1jUL3YCMmnG4vHkpkyUphL9+IfriO3cV8QviP3/DuH032lF 7OhYLlct0Rucqr17Y/YsrJ6YgF1+HBZRzAmpIJedwS8qUbQKOMihlQaHv8lv4KosuYcc0VWUa3A 6hcNu8nADh7qzot0BF+xeaIGweo11L3vAnkncsWmtBybNxXyi/BmyTBaqiJvc7649n0TgA4k7yU iWtMo7o0SE6cDIXfLWysK+7TtkkV25UpxrNQf5nQD9gX5aXd4fQABNUkvqrhfLmsnRFz6pJtEYh xNoldm1jqkhdl7xWKbGYTYwx24fmXj7PwsdQyXdiPIR0a1i6hdXgkPfc7vKCTUQfiU3MhlIJ+BT 0Y87Csa57ZGjIWPrVAd2m1cUUwTvx5913wav7nCeAiCmPx4NwMidYBYDjITpiaHgegYo0SFQSFb L1bvQASAHAopEd76v+1E8TAkVzxP6hSgEB93zX1y02L/cQu0IFfJSa/VY7qoYCl8nGW1v6w== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--13.578500-10.000000 X-TMASE-Version: IMSVA-9.1.0.1960-8.6.1013-25652.006 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-TM-SNTS-SMTP: AC371C619D3FD3B46CDA1403A38D828A0D8DCA31EB0E32DE45CA391C53DF4B872000:8 X-TM-AS-GCONF: 00 X-imss-scan-details: No--13.579-5.0-31-10 X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: systemtap@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Systemtap mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Sep 2020 11:15:32 -0000 > From: peterz@infradead.org > > I'm now trying and failing to reproduce.... I can't seem to make it use > int3 today. It seems to want to use ftrace or refuses everything. I'm > probably doing it wrong. > You can turn off CONFIG_KPROBES_ON_FTRACE (and also sysctl debug.kprobes-op= timization) to make it use int3 handler TREND MICRO EMAIL NOTICE The information contained in this email and any attachments is confidential= and may be subject to copyright or other intellectual property protection.= If you are not the intended recipient, you are not authorized to use or di= sclose this information, and we request that you notify us by reply mail or= telephone and delete the original message from your mail system. For details about what personal information we collect and why, please see = our Privacy Notice on our website at: Read privacy policy