From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B7B1C433E2 for ; Mon, 14 Sep 2020 13:41:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2533C20EDD for ; Mon, 14 Sep 2020 13:41:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="e7fyEFcE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726522AbgINNk4 (ORCPT ); Mon, 14 Sep 2020 09:40:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57800 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726749AbgINNgI (ORCPT ); Mon, 14 Sep 2020 09:36:08 -0400 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E426C06174A; Mon, 14 Sep 2020 06:36:03 -0700 (PDT) Received: by mail-wm1-x344.google.com with SMTP id e17so71526wme.0; Mon, 14 Sep 2020 06:36:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition; bh=gdhmugLqW7kZFrfvX3M00eU7dg8wTThNgVclxlTgViM=; b=e7fyEFcEndcJpteBlRD60kFt98Z69+lfT6bkXtZoa9qDJV0+gtG/vOmS/JdZXXtZiM F9dc885pna3iqyCzQqaMQ0H2voJeG90Oh3b+FjP9MNfPxmieGThCAB2Ztwt5kN5iF8U3 LNbvu0RVEffgIJuCTQ7eyH+xWLrTnHVkaGAU2ihK9aqi0fyfwlqKLUePA6L90ERXWbU7 9tXhjFJ1sqN2/+vsj+rSTkAvVM+gedJENBOloau/bjczRAz7ia158ClEjnkce+9K9Vp/ 3Pc4qd702VNQL9kwQo+COLOy4AdxVgo00MTgX3N9GUshFA55ZGnln3A9DhNKLhuosNVj p44g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=gdhmugLqW7kZFrfvX3M00eU7dg8wTThNgVclxlTgViM=; b=ACGP96OCNvz3uQMWIvZa6sTBKwQ9TkSx5XtVLvODeLfeOQeyfWYZvCgpFlM2tDnie4 zR7OLHcDKICMUrOyo/9vmlRHtk1ZJRcN48tq42Gkcw+HdOQ2vRz7F1829d60GVdDumnT Lg9SInZFw4GPTvYngtPiKFm/qhFk5J1HIlvfppwBGaXZPDVNcYep2n+5aWEdjW8iH7iv LPIO+toEHTH4Gg13CMhRvF/oXuot1F1K88OjFUFFGDIspSvd8l6yGKZKnwYKfBR52sCJ RNpb5lxOO4pDttFCnJC4lDr/uKqzaunkLQVLa3Kg8BVG0qmtDmtQHn1uytLz3r5doGCY 5MJw== X-Gm-Message-State: AOAM5300tB5bGtGJAbhDBIVuJAuo9+IZmnMX+sPimgDkHp1YSKSvp7MW GyRg2LEHylBZM1SDv2yEbQ== X-Google-Smtp-Source: ABdhPJwKhNPs4paL/6g5fIc2dooU8YJ4hKIr6kqKv3iHeuW0Wc0X/Qgkl2E9ARAKZ5Xu5tIlNcpJDQ== X-Received: by 2002:a1c:4c0d:: with SMTP id z13mr14408941wmf.113.1600090562397; Mon, 14 Sep 2020 06:36:02 -0700 (PDT) Received: from localhost.localdomain ([46.53.251.238]) by smtp.gmail.com with ESMTPSA id s67sm20034759wmf.38.2020.09.14.06.36.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Sep 2020 06:36:01 -0700 (PDT) Date: Mon, 14 Sep 2020 16:35:59 +0300 From: Alexey Dobriyan To: mingo@kernel.org Cc: linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, masahiroy@kernel.org Subject: Re: [PATCH] kbuild: Run syncconfig with -s Message-ID: <20200914133559.GA126210@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > BTW., there's another, rather spurious bug I recently triggered in kbuild. > > Occasionally when I Ctrl-C a kernel build on a system with a lot of CPUs, > the .o.cmd file gets corrupted: Those are temporary files, truncated at page boundary. $ stat -c %s XXX.pata_sil680.mod.o.cmd 12288 I tried to fix this by inserting shell 'trap' directive but it failed somewhere else. cmd_and_fixdep = \ $(cmd); \ scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(dot-target).cmd;\ rm -f $(depfile)