From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Philipp Stephani Newsgroups: gmane.emacs.bugs Subject: bug#56424: hydra.nixos coverage job times out Date: Tue, 19 Jul 2022 14:52:34 +0200 Message-ID: References: <2opmiip1zy.fsf@fencepost.gnu.org> <87h73tgup5.fsf@gnus.org> <87pmidb0r2.fsf@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38325"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Po Lu , Glenn Morris , Lars Ingebrigtsen , Philipp Stephani , 56424@debbugs.gnu.org To: Michael Albinus Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jul 19 14:53:25 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oDmj6-0009pA-H1 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Juli 2022 um 14:40 Uhr schrieb Michael Albinus : > > Glenn Morris writes: > > Hi Glenn, > > > With increased logging, and a serial build, we can see that it times out > > in process-tests: > > https://hydra.nixos.org/build/183466954 > > The incrimed test is process-tests/fd-setsize-no-crash/make-process. > From EMBA, I know that there are sometimes problems with this test > package, that's why we have suppressed > process-tests/multiple-threads-waiting on EMBA, for example. Maybe > something similar shall be done for HYDRA? > > I've CC'ed Philipp Stephani, the author of this test package, for > further analysis. My 2 cents: These timeouts/failures indicate real bugs in Emacs. They are incredibly hard to debug due to the enormous complexity in Emacs's asynchronous process handling code, but just skipping them won't make the bugs go away. Somebody should at least try to dig into these issues. But probably that requires something like the CI system creating a snapshot of the failed tests as a Docker container that one could SSH into, because the failures tend to be impossible to reproduce locally.