From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/88026 Path: news.gmane.org!not-for-mail From: Sanjoy Mahajan Newsgroups: gmane.comp.tex.context Subject: Re: underbraces get progressively more misaligned (w/ minimal example) Date: Sun, 06 Jul 2014 22:16:56 -0400 Message-ID: <87tx6tj4kn.fsf@approx.mit.edu> References: <87d2dsnhui.fsf@approx.mit.edu> <877g40nhcl.fsf@approx.mit.edu> <87k37u7m4e.fsf@approx.mit.edu> <66D45391-7643-4952-BF98-7439FCEC856B@gmail.com> <87a98q40ks.fsf@approx.mit.edu> <53B5D497.1040108@wxs.nl> <871tu23w7e.fsf@approx.mit.edu> <53B5DE6B.8040104@wxs.nl> <87simh31s7.fsf@approx.mit.edu> <53B7472C.90607@wxs.nl> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1404699460 2430 80.91.229.3 (7 Jul 2014 02:17:40 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 7 Jul 2014 02:17:40 +0000 (UTC) To: Hans Hagen , mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Mon Jul 07 04:17:33 2014 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([5.39.185.229]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1X3yUn-0001O9-DE for gctc-ntg-context-518@m.gmane.org; Mon, 07 Jul 2014 04:17:33 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id A5E9A10222 for ; Mon, 7 Jul 2014 04:17:32 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id y6ifvwo9D1lP for ; Mon, 7 Jul 2014 04:17:32 +0200 (CEST) Original-Received: from balder.ntg.nl (localhost [IPv6:::1]) by balder.ntg.nl (Postfix) with ESMTP id EEB8310224 for ; Mon, 7 Jul 2014 04:17:23 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 7A688101E8 for ; Mon, 7 Jul 2014 04:17:19 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id qLFK4TkiMTRv for ; Mon, 7 Jul 2014 04:17:14 +0200 (CEST) Original-Received: from filter4-ams.mf.surf.net (filter4-ams.mf.surf.net [192.87.102.72]) by balder.ntg.nl (Postfix) with ESMTP id B0100101E3 for ; Mon, 7 Jul 2014 04:17:09 +0200 (CEST) Original-Received: from dmz-mailsec-scanner-3.mit.edu (dmz-mailsec-scanner-3.mit.edu [18.9.25.14]) by filter4-ams.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id s672hVwm027439 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Mon, 7 Jul 2014 04:43:32 +0200 X-AuditID: 1209190e-f79946d000007db1-47-53ba0320e562 Original-Received: from mailhub-auth-4.mit.edu ( [18.7.62.39]) (using TLS with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by dmz-mailsec-scanner-3.mit.edu (Symantec Messaging Gateway) with SMTP id 02.3B.32177.0230AB35; Sun, 6 Jul 2014 22:17:04 -0400 (EDT) Original-Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by mailhub-auth-4.mit.edu (8.13.8/8.9.2) with ESMTP id s672H2gQ000420; Sun, 6 Jul 2014 22:17:03 -0400 Original-Received: from approx.mit.edu (pool-71-126-238-231.bstnma.east.verizon.net [71.126.238.231]) (authenticated bits=0) (User authenticated as sanjoy@ATHENA.MIT.EDU) by outgoing.mit.edu (8.13.8/8.12.4) with ESMTP id s672H0p0025719 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Sun, 6 Jul 2014 22:17:02 -0400 Original-Received: from sanjoy by approx.mit.edu with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1X3yUC-00017z-7c; Sun, 06 Jul 2014 22:16:56 -0400 In-Reply-To: <53B7472C.90607@wxs.nl> User-Agent: Notmuch/0.18.1 (http://notmuchmail.org) Emacs/24.3.1 (i486-pc-linux-gnu) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrLIsWRmVeSWpSXmKPExsUixG6nrqvAvCvY4O9iCYu18xcxWew6s5zJ gcnj2KrFjB6nrzkHMEVx2aSk5mSWpRbp2yVwZUw5/5exoIm7oqHpKGsD40GOLkYODgkBE4nl f4y7GDmBTDGJC/fWs4HYQgKzmST2rc7vYuQCsjcwSjxc+ZwRwjnPJHHt+28oZymjxLWLC9lB JrEJqEr8/R8IYooIxEj0PGAFGSQsECux41kfK0iYU0BF4sH6UojOn0wSncd3s4PUiAqESPyc 2cMEYrMATdmyaDnYEbwC2hKNj+4yQdiCEidnPmEBsZkFJCQOvnjBPIFRYBaS1CwkqQWMTKsY ZVNyq3RzEzNzilOTdYuTE/PyUot0jfVyM0v0UlNKNzGCQpFTkm8H49eDSocYBTgYlXh4D6za GSzEmlhWXJl7iFGSg0lJlFeScVewEF9SfkplRmJxRnxRaU5q8SFGCQ5mJRHeM25A5bwpiZVV qUX5MClpDhYlcd631lbBQgLpiSWp2ampBalFMFkZDg4lCd4qJqChgkWp6akVaZk5JQhpJg5O kOE8QMM1QWp4iwsSc4sz0yHypxgVpcR5mUASAiCJjNI8uF5YqnjFKA70ijDvcpAqHmCaget+ BTSYCWjw5/c7QAaXJCKkpBoY/ZMcCu4/L+v60Fwfc3jJXfEzbX/j5v3Yf7za5oQ/6+ezGccK Zih22P+o3iC6c+rWh7X7Ly/lyF7q+MJ/mmly7PWTuh+nBItJvOL7FbUyb2/3lF61/VfyzB2O Vve9+Hsy3NajmW/KpPLf5w5uZdu0oCj0qeKG9t63F85WsL0/Mu+9xY+n93SKTyqx X-Bayes-Prob: 0.0001 (Score 0, tokens from: ntg-context@ntg.nl, base:default, @@RPTN) X-CanIt-Geo: ip=18.9.25.14; country=US; region=Massachusetts; city=Cambridge; latitude=42.3931; longitude=-71.1345; http://maps.google.com/maps?q=42.3931,-71.1345&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 01MneHwsH - 13e70958043f - 20140707 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) on 192.87.102.72 X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.14 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ntg-context-bounces@ntg.nl Original-Sender: ntg-context-bounces@ntg.nl Xref: news.gmane.org gmane.comp.tex.context:88026 Archived-At: Hans Hagen writes: > After a day of testing, tracing, wondering etc Luigi and I figured out > what was the problem it tooks us lots of debug prints -). Indeed there > is a bug in luatex. Great detective work! > So, some random value (not entirely random as it depends on what mem > area the glue node is allocated from and that is kind of stable in a > run) was added which results in the effects you noticed. Ah, so running it 30000 times would allocate the glue node from higher and higher mem, and thereby making the not-so-random value larger and larger. > So, once this fix moves upstream you can check your suspicious cases. > Luigi will push it in our experimental branch and I suppose that Taco > will then push it into trunk and after that you can compile Once it in the luatex trunk, I will check it right away. I am also happy to test the experimental branch if you give me a pointer to it. > or wait till the garden carries it. Do you mean in the minimals? > Thanks for noticing! For sure. I am very happy that it is fixed, and fixed before I have to give in my absolute final PDF file. My only worry is that the carefully tuned page breaks, some of which are sensitive to 1pt insertions of vertical space, might change once the underbraces return to their homes. But I'll tweak it with a bit of vertical space. -Sanjoy ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________