From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from resqmta-ch2-10v.sys.comcast.net (resqmta-ch2-10v.sys.comcast.net [IPv6:2001:558:fe21:29:69:252:207:42]) by sourceware.org (Postfix) with ESMTPS id 6CBFC385381D for ; Wed, 18 Aug 2021 20:53:49 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 6CBFC385381D Received: from resomta-ch2-09v.sys.comcast.net ([69.252.207.105]) by resqmta-ch2-10v.sys.comcast.net with ESMTP id GMFPmTycuhBViGSZHm7UQb; Wed, 18 Aug 2021 20:53:47 +0000 Received: from smtpclient.apple ([73.60.223.101]) by resomta-ch2-09v.sys.comcast.net with ESMTPSA id GSZDmaobqVtMdGSZFmntSJ; Wed, 18 Aug 2021 20:53:47 +0000 X-Xfinity-VAAS: gggruggvucftvghtrhhoucdtuddrgedvtddrleehgdduheefucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuvehomhgtrghsthdqtfgvshhipdfqfgfvpdfpqffurfetoffkrfenuceurghilhhouhhtmecufedtudenucenucfjughrpegtggfuhfgjfffgkfhfvffosehtqhhmtdhhtddvnecuhfhrohhmpefrrghulhcumfhonhhinhhguceophgruhhlkhhonhhinhhgsegtohhmtggrshhtrdhnvghtqeenucggtffrrghtthgvrhhnpedvtdevjeeuhefhiedvteffjeeuffehkefgudeutdevffefkeeijeelfeevuefhgeenucfkphepjeefrdeitddrvddvfedruddtudenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhephhgvlhhopehsmhhtphgtlhhivghnthdrrghpphhlvgdpihhnvghtpeejfedriedtrddvvdefrddutddupdhmrghilhhfrhhomhepphgruhhlkhhonhhinhhgsegtohhmtggrshhtrdhnvghtpdhrtghpthhtohepphhsmhhithhhsehgnhhurdhorhhgpdhrtghpthhtohepghgusgesshhouhhrtggvfigrrhgvrdhorhhg X-Xfinity-VMeta: sc=0.00;st=legit Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) Subject: Re: Tools to debug multiple cores/processes at the same time? From: Paul Koning In-Reply-To: <3ba28620390947de2a84cabbd1958852aad97d5e.camel@gnu.org> Date: Wed, 18 Aug 2021 16:53:43 -0400 Cc: gdb@sourceware.org Content-Transfer-Encoding: quoted-printable Message-Id: <97D56F18-F336-45CD-9258-CB884C7F76E5@comcast.net> References: <3ba28620390947de2a84cabbd1958852aad97d5e.camel@gnu.org> To: psmith@gnu.org X-Mailer: Apple Mail (2.3654.120.0.1.13) X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, JMQ_SPF_NEUTRAL, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Aug 2021 20:53:52 -0000 > On Aug 18, 2021, at 3:55 PM, Paul Smith via Gdb = wrote: >=20 > In my environment I'm working on a distributed system where the same > process is running on a number of different systems. The way these > processes work is that they should all have (approximately) the same > set of in-memory content at the same time. > ... > What I'm really wondering is, has anyone heard of something like this, > or is there any support (even partial support) for something like this > in GDB today? I get that it seems like a somewhat specialized = request. >=20 > Debugging multiple live processes at the same time would also be = great, > of course. There is multiple target support, which I haven't had a chance to try = yet but from what I remember reading is a recently added GDB feature. = It should handle your case plus even stranger ones, such as multiple = processes running different code, or even running on different = instruction sets. It's just what you need for debugging distributed = applications. paul