From owner-freebsd-current@freebsd.org Mon Dec 31 18:17:05 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 325ED143BD22 for ; Mon, 31 Dec 2018 18:17:05 +0000 (UTC) (envelope-from jonc@chen.org.nz) Received: from mail-vs1-xe43.google.com (mail-vs1-xe43.google.com [IPv6:2607:f8b0:4864:20::e43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B622276937 for ; Mon, 31 Dec 2018 18:17:02 +0000 (UTC) (envelope-from jonc@chen.org.nz) Received: by mail-vs1-xe43.google.com with SMTP id p74so16831330vsc.0 for ; Mon, 31 Dec 2018 10:17:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chen-org-nz.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=oA8R8OTMVP5nqZ/84IF8NfoX9sHi/7YO4Ow7mg9WvCc=; b=jnCS1RJP+l9efv1+10mxdhoEMORIUXqbYExoOXbHJu+Wk6K2A7E619csAmTbGAUWiX hPDNQgsBfnTIoeJg2W/0xmiH9Bzl7dPdCgtYvd6DDWqLMT8yDLo5sMVplJB2+RmkvnH5 1pcKhfJrQb0houBCQiRwU1hEM8TeMkJI0DWPvNCLIMcxLAmkaSB/Rxijma1ZUicyWC+p /CycYBu4AzK7sc2oXpyAk4oxQiVYvqrM/r70AtCZJA1qYYNHQBCsOIdmBPzesCnatE+F WM0IiWeGSHackIKhVtgMy3FrODMevsZrxSVml+3tMcgr1cjDSufevcaT8mG6ghJrL81t qXng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=oA8R8OTMVP5nqZ/84IF8NfoX9sHi/7YO4Ow7mg9WvCc=; b=BMQAOncuDjXuuy7De4AECjaVwH5vE9Rj9Fc0VnkIR3PnjvjTluR537n4zLn84BPoWv aG9kcxloRlBI30XvIYPYH6Zu9HaNw3lhuTALfotYULcHfzK5YShwHxXniD6+9CXuEymM ivrWaFniretYoBvROYhK4jzLPe5KAMAmwBRF/7nx87cQyxU4olEOyI3fDdCAVrd12d6T gNumqsMmme6s37+rh4QvnYWVILJ3AP+Ifb4x3BBjBISmorTo4l2f47hvVPOYiR2HfHox SU91IwLw8pwXBXwieEmHZoVC9TFoMS7inKZfOSzp02hu4IjER7n/GyXoah9EZZ+otdf/ VxRw== X-Gm-Message-State: AA+aEWbE9LfvJ8iY/67uvP9BfJ9ThOFqvDq+13XYQRpsANy0WdMHr1cg iI0BlTm2By9w19dh0RIo8xSxOsBPlKombKK7wv/cEA== X-Google-Smtp-Source: AFSGD/WamyiZqPddZL65QVX3WFI7IxrVHjb44abOfNyRGwpfDS/3I8ZAXuthlo+BCwyrKz/KzHrqfqNF5k9lgT+qJpA= X-Received: by 2002:a67:5bdc:: with SMTP id w89mr15553112vsg.109.1546280221720; Mon, 31 Dec 2018 10:17:01 -0800 (PST) MIME-Version: 1.0 References: <865A13C8-9749-486E-9F79-5EEDDECBE621@yahoo.com> <0154C3AC-D85B-4FCF-BA63-454BC26BC1A2@yahoo.com> <13f5e4dd-33fb-2170-e31a-1b5d5f155869@freebsd.org> <2E3F6196-4652-40D2-937F-8860B6005A35@yahoo.com> <82478A45-7D15-4995-B333-FC42B39E5345@yahoo.com> In-Reply-To: <82478A45-7D15-4995-B333-FC42B39E5345@yahoo.com> From: Jonathan Chen Date: Tue, 1 Jan 2019 07:16:40 +1300 Message-ID: Subject: Re: A reliable port cross-build failure (hangup) in my context (amd64->armv7 cross build, with native-tool speedup involved) [details of a specific qemu-arm-static source code problem] To: Mark Millard Cc: mmel@freebsd.org, freebsd-emulation@freebsd.org, FreeBSD Current , freebsd-arm , ports-list freebsd , FreeBSD Toolchain Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: B622276937 X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=pass header.d=chen-org-nz.20150623.gappssmtp.com header.s=20150623 header.b=jnCS1RJP X-Spamd-Result: default: False [0.19 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.85)[-0.848,0]; R_DKIM_ALLOW(-0.20)[chen-org-nz.20150623.gappssmtp.com:s=20150623]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_SPAM_SHORT(0.50)[0.502,0]; IP_SCORE(0.09)[ip: (4.03), ipnet: 2607:f8b0::/32(-1.95), asn: 15169(-1.56), country: US(-0.08)]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[chen.org.nz]; NEURAL_HAM_LONG(-0.75)[-0.745,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MX_GOOD(-0.01)[cached: alt1.aspmx.l.google.com]; DKIM_TRACE(0.00)[chen-org-nz.20150623.gappssmtp.com:+]; RCPT_COUNT_SEVEN(0.00)[7]; RCVD_IN_DNSWL_NONE(0.00)[3.4.e.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; R_SPF_NA(0.00)[]; FREEMAIL_TO(0.00)[yahoo.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; SUSPICIOUS_RECIPS(1.50)[] X-Mailman-Approved-At: Mon, 31 Dec 2018 18:36:35 +0000 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Dec 2018 18:17:05 -0000 On Mon, 31 Dec 2018 at 21:05, Mark Millard wrote: [...] > But if you have a form of hang-up that shows no sign of being tied > to kevent or hangs-up only sometimes, I'd be surprised if the __packed > change(s) would fix the issue. With the __packed-modified qemu-user-static, the amd64->armv7 crossbuilds does not hang anymore, but I get build failures instead. Interestingly enough, an unmodified qemu-user-static gets further along in a amd64->armv6 crossbuild, with only one reproducible hang. Cheers. -- Jonathan Chen