From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: "Thompson, David" Newsgroups: gmane.lisp.guile.bugs Subject: bug#20272: Support reproducible builds Date: Mon, 8 Apr 2024 13:27:40 -0400 Message-ID: References: <87twws88hr.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="18880"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 20272@debbugs.gnu.org To: "Bernhard M. Wiedemann" Original-X-From: bug-guile-bounces+guile-bugs=m.gmane-mx.org@gnu.org Mon Apr 08 19:29:53 2024 Return-path: Envelope-to: guile-bugs@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 1rtsoa-0004hO-1p for guile-bugs@m.gmane-mx.org; Mon, 08 Apr 2024 19:29:52 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rtsnu-0005VQ-Tu; Mon, 08 Apr 2024 13:29:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rtsni-0005Ts-0F for bug-guile@gnu.org; Mon, 08 Apr 2024 13:28:58 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rtsnf-0000GS-UL for bug-guile@gnu.org; Mon, 08 Apr 2024 13:28:57 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1rtsnn-0007Q1-De for bug-guile@gnu.org; Mon, 08 Apr 2024 13:29:03 -0400 X-Loop: help-debbugs@gnu.org In-Reply-To: <87twws88hr.fsf@gnu.org> Resent-From: "Thompson, David" Original-Sender: "Debbugs-submit" Resent-CC: bug-guile@gnu.org Resent-Date: Mon, 08 Apr 2024 17:29:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20272 X-GNU-PR-Package: guile X-GNU-PR-Keywords: patch Original-Received: via spool by 20272-submit@debbugs.gnu.org id=B20272.171259729428104 (code B ref 20272); Mon, 08 Apr 2024 17:29:03 +0000 Original-Received: (at 20272) by debbugs.gnu.org; 8 Apr 2024 17:28:14 +0000 Original-Received: from localhost ([127.0.0.1]:47559 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1rtsmy-0007Iy-2k for submit@debbugs.gnu.org; Mon, 08 Apr 2024 13:28:13 -0400 Original-Received: from mail-qt1-x834.google.com ([2607:f8b0:4864:20::834]:57840) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1rtsmq-0007GQ-Bi for 20272@debbugs.gnu.org; Mon, 08 Apr 2024 13:28:09 -0400 Original-Received: by mail-qt1-x834.google.com with SMTP id d75a77b69052e-4349bba0ba3so8919751cf.3 for <20272@debbugs.gnu.org>; Mon, 08 Apr 2024 10:27:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=worcester-edu.20230601.gappssmtp.com; s=20230601; t=1712597271; x=1713202071; darn=debbugs.gnu.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=qYkFe++rPw9abS8VG1wJMeUOUOWIvvbwXqwgVBA4Ipo=; b=M9cHOu3BI1As4qcG+ZzFv99VT+nl2Rw2HqHSFACyYe2ZXM34wVfV00xuh731uuVUDC zNDQy4kkOl/qsa1fO6AyPiXnO9tEKRuN4NyEPO42PuJQIbOV1qT8maaEN52G16cwYKvt Sk8iClQcZqXsgQCGJ/5zS1aNq+bwv3riZ5rtGh7KDqQFiQYoKSxRT8V9Dj5zDL5Ha60L /qq1DCrYbK2LwIvPlRgTpvz+dlt8dHaHca2R0hvh7V+FWido5G2IGUUCVxxZstQTVNLU ahYhxxbI701MWcJ9t63sB+v1P1slob++piqzfDaTVMM7KRUOHZoMdB2HalDAyZFP5MzK jNPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712597271; x=1713202071; h=content-transfer-encoding:cc:to:subject:message-id:date:from :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=qYkFe++rPw9abS8VG1wJMeUOUOWIvvbwXqwgVBA4Ipo=; b=QNLF5+1tHO/jcg2wOpQeVF4ksKVBx3z6ev5BLVw2giTpLU+fk8fa9UnVp5LXD2Z6Ef y8Ycsj2GcgLewEW3oA524mcMjYoI3hum2tub2c7oqE5y0MRIVihQOcVh/dR90WhDr0qc Pdk3oKMnNxROhQaRKivujHWWFzUQbSAfsOe79zSKRhv8Zcmd5skqXNkwWoQRcoyv/s3U KUEfrmpknIz/Vr8bKA4/ZQC5YfWVEfn4zeLT05lhoEhTAUrYhF8vXWfKN5bAkTpCJOsw hPXlHBWsU0jTSeP1/7BtPO8jUcKq2keCqI6CnsdO4H8f4sAYEx6RlMYlkDWIL7Wq+w7j +NBg== X-Gm-Message-State: AOJu0YzGWQVD+zxgN/8rRlQXCMrsvckFJWJQh//laZkSbSbxtnuX7Vzx RjoQxfQ4IT0gJ3IIoDhbxrh8VQ4+mDtgut/JijQs79sYiFEzq7Q6didQ9cAtXjYTD4J3lkoz2h2 40FjzC1sxXuKFPVoljeIDWiPgMzwia65jGzfZDg== X-Google-Smtp-Source: AGHT+IHW50Gid1al6GIu8kbrvflKX4WH083nOyhOGgfhxQc5D8u7iv9/7riWg27JKkTBnDicX/ivuvQCSWRWug0sAXU= X-Received: by 2002:ac8:5f8f:0:b0:434:8de0:52ad with SMTP id j15-20020ac85f8f000000b004348de052admr4562506qta.16.1712597271117; Mon, 08 Apr 2024 10:27:51 -0700 (PDT) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane-mx.org@gnu.org Original-Sender: bug-guile-bounces+guile-bugs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.lisp.guile.bugs:10803 Archived-At: On Fri, Nov 17, 2023 at 3:29=E2=80=AFPM Bernhard M. Wiedemann wrote: > > Parallel builds with guile-3.0.9 still introduce non-determinism I recently learned that the cross-module inlining optimization pass is a source of nondeterminism. If module A imports module B, inlining of procedures from B into A may occur *if* B has already been compiled. Depending on the value of n in `make -j $n` you will likely get a different build. While working on Guile Hoot, I encountered a bug on my machine that Andy Wingo couldn't reproduce on his. Turns out it was because my `make -j6` build was different from his `make -j32` build. I don't recall the details but apparently Guile's bootstrap process takes great care to avoid sequencing issues like this. I don't know what the solution might be, though. I want parallel *and* reproducible builds! - Dave