From debbugs-submit-bounces@debbugs.gnu.org Fri Oct 09 17:17:12 2020 Received: (at 24028) by debbugs.gnu.org; 9 Oct 2020 21:17:12 +0000 Received: from localhost ([127.0.0.1]:36426 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kQzlI-0001K7-8T for submit@debbugs.gnu.org; Fri, 09 Oct 2020 17:17:12 -0400 Received: from mail-qt1-f193.google.com ([209.85.160.193]:43620) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kQzlG-0001Jq-72 for 24028@debbugs.gnu.org; Fri, 09 Oct 2020 17:17:11 -0400 Received: by mail-qt1-f193.google.com with SMTP id g3so9061307qtq.10 for <24028@debbugs.gnu.org>; Fri, 09 Oct 2020 14:17:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=XNtAOzQZRM+bc9tQGV39aFe4+PsGMhT5x2bS/02fRU4=; b=SFWshbfSy04SqJVm0mMa8DLl6fo6x/x7sFZCFQE4E6uCckBBcGXJ7wFk2ZYLT234mL bd5hWG0iSi9jLyQQ3LtogbgeVuZvRRHDYl4fFNW6Ff+LKjaxzEsZ03Zs6jPJ0AkQJjL9 QTKdD4D/HS2fhLAzcn8qouVdluWu01k+23x77Bp6xQuUN69QPztSKQR6g1TWISY4Kps0 4u6xjGaKArgNjhqCsrJunegkGrd2TXedykx3O/f3yv9hv8h8A83rsXHxfvMHMXYfvUWr jjJ/RfrMes1zVyd59VckMAdYY55m2MVxrML3iPktg75vUa90Eb6PUIPqMYis1V7vmxVa Mzbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=XNtAOzQZRM+bc9tQGV39aFe4+PsGMhT5x2bS/02fRU4=; b=IZp1jRt7wviFwr9yZJvwernAQp4WyoQ+90PZwrHQL5J7835fHcXzeIq2lanZpr5ymV vIp5r7RXghP+nz0qwO4hHASLEX0A0Tussw0XoV7uL+sFpNwXLxi/uXJh7EAW5lppClqB zu39mo9rbHzTxSFOEQBXaAXL5gOcuSgahb4kXr8gJDFX++do0uU4lkhCjuN7uBjoYQy7 kM17sdjyBU31CGMubHZmxfTAGzkazafkECDygFzcJXYvRxuR8xGDOE7X4jKgzx84qI3+ 5ktBKmBPjrrcLMrhUz3lGri6TTxfcESLN+FJS+03mD63fkNijW5tWvo8rRRf0XAnJxXH sdsQ== X-Gm-Message-State: AOAM5317Q7tkseQ5XBOcpBGJYQJsv0jpfiJEIoL4/TAP7vEKtn+ylQlc 1pxepquvgn2aWPmehgecxxQ4/s3DZOIS9A== X-Google-Smtp-Source: ABdhPJxUuvvH8fWgntvKiry9ASQ0ISEnOenQZxhZRkE2Y3urEuBhtKdrnGgnjWqXy0aOx3aTxzwkAw== X-Received: by 2002:ac8:6056:: with SMTP id k22mr15182763qtm.71.1602278224557; Fri, 09 Oct 2020 14:17:04 -0700 (PDT) Received: from hurd (dsl-10-148-10.b2b2c.ca. [72.10.148.10]) by smtp.gmail.com with ESMTPSA id q7sm7053633qtd.49.2020.10.09.14.17.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Oct 2020 14:17:03 -0700 (PDT) From: Maxim Cournoyer To: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) Subject: Re: bug#24028: Linux-libre kernel does not build deterministically References: <87lh0xfsq2.fsf@gnu.org> Date: Fri, 09 Oct 2020 17:17:03 -0400 In-Reply-To: <87lh0xfsq2.fsf@gnu.org> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?= =?utf-8?Q?s?= message of "Tue, 19 Jul 2016 19:22:29 +0200") Message-ID: <87imbjqeuo.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 24028 Cc: 24028@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Hello, ludo@gnu.org (Ludovic Court=C3=A8s) writes: > As of version 4.6.4, Linux-libre does not build reproducibly: > > $ guix challenge linux-libre > /gnu/store/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-4.6.4 contents di= ffer: > local hash: 1py214sd42qcq8l429m4zf4aibp8rl68kpkrzqi1nn65vnbxsx11 > https://hydra.gnu.org/nar/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-= 4.6.4: 19hsdsjy5i9nfc1g28s074znzimzhylgkdpwz435j301sn9pxxp9 > $ wget -q -O - https://hydra.gnu.org/nar/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci= -linux-libre-4.6.4 | bunzip2 | guix archive -x t > $ diff -ur --no-dereference /gnu/store/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-l= inux-libre-4.6.4 /tmp/t > Binary files /gnu/store/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-4.6.= 4/bzImage and /tmp/t/bzImage differ > > Apparently people are working on it: > . > > Ludo=E2=80=99. I just tested with linux-libre 5.8.10, and it still suffers from reproducibility problems, but only for one file: --8<---------------cut here---------------start------------->8--- diff -r /gnu/store/jc1dydmax5sdfljpi5mq5dhq9wdr92xy-linux-libre-5.8.10{,-ch= eck} Binary files /gnu/store/jc1dydmax5sdfljpi5mq5dhq9wdr92xy-linux-libre-5.8.10= /bzImage and /gnu/store/jc1dydmax5sdfljpi5mq5dhq9wdr92xy-linux-libre-5.8.10= -check/bzImage differ --8<---------------cut here---------------end--------------->8--- So, we're not far! Maxim