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Fri, 22 Mar 2024 22:22:13 -0700 (PDT) From: Thiago Jung Bauermann To: Joel Brobecker Cc: gdb-patches@sourceware.org Subject: Re: GDB 15.1 release update (2024-03-23) In-Reply-To: (Joel Brobecker's message of "Sat, 23 Mar 2024 08:17:39 +0400") References: User-Agent: mu4e 1.12.0; emacs 29.1 Date: Sat, 23 Mar 2024 02:22:10 -0300 Message-ID: <871q81h69p.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces+public-inbox=simark.ca@sourceware.org Hello Joel, Joel Brobecker writes: > First, a reminder of our target dates: > > - Pre-release: 13-14 April 2024 > - Release (15.1): 27-28 April 2024 > > As we'll see in the recap below, things are moving forward, albeit > slowly, and we also have one (and maybe two) new issues which have > been reported. As a result, I'm starting to think that maybe > we won't make the dates above, which isn't a complete surprise > since we know those dates were a little on the optimistic side. > We'll see! > > Meanwhile, below is a quick overview of where we stand in terms > of known issues. Thank you to everyone for creating PRs, as > this helps tremendously with tracking! > > Please do let us know if there are other issues you think should be > fixed in GDB 15. It's not an issue per se, but if possible I would like to get some improvements for aarch64 MOPS (Memory Operations) instructions in GDB 15. These implement memcpy, memset and memmove with a sequence of instructions that need to be executed in sequence, and thus can cause issues when single-stepping through them, and also regarding detection of when they trigger a watchpoint. I'm striving to post patches in the next two to three weeks. Tom de Vries recently opened a bug about adding a testcase for these instructions: [gdb/testsuite] Add memcpy, memmove, memset watchpoint tests https://sourceware.org/bugzilla/show_bug.cgi?id=31484 > Other Ongoing Items: > -------------------- > > * [CarlEL] testsuite/31312 > attach-many-short-lived-threads gives inconsistent results (POWER 10) > https://sourceware.org/bugzilla/show_bug.cgi?id=31312 > > Looked like the discussions have reached a consensus of accepting > this failure (2024-03-09), but there was a second questin that > wasn't wasn't understood yet, so Carl tried to dig deeper. > Meanwhile, Thiago indicated he's seeing the same kind of behavior > on AArch64 Linux (sometimes), and now has some leads he is > pursuing (go Thiago!) Thank you! :-) > Thiago posted a patch series that fixes the problem, but > with one known regression he hasn't had time to investigate: > https://sourceware.org/pipermail/gdb-patches/2024-March/207467.html Pedro suggested an alternative approach to fix the problem. I tried that suggestion (or something similar to it) before posting the patch series and there was some other problem, but I can't recall the details. I'll try again next week and see how it goes. -- Thiago