Public bug reported: When processing some source files with a number of duplicated edges (that is, there exist some nodes A and B such that several edges A->B are declared with various properties), dot fails to produce an output. Usual source files are processed correctly.
Bug exists upstream with detailed steps to reproduce on http://www.graphviz.org/mantisbt/view.php?id=2456 but I could not create an account there (or even login anonymously). This bug report on LaunchPad may be useful to confirm it affects multiple users. I suspect the reason is duplicated edges because the only Google answer on the assertion failure message is on that Mantis page, and the graphs I was working on do have a number of duplicated edges. 1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu LC_ALL=C lsb_release -rd Description: Ubuntu 14.04.2 LTS Release: 14.04 2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center apt-cache policy graphviz graphviz: Installé : 2.36.0-0ubuntu3.1 Candidat : 2.36.0-0ubuntu3.1 Table de version : *** 2.36.0-0ubuntu3.1 0 500 http://fr.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages 100 /var/lib/dpkg/status 2.36.0-0ubuntu3 0 500 http://fr.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 3) What you expected to happen A graphic file is generated. 4) What happened instead Graphviz stops with message: dot: class2.c:149: merge_chain: Assertion `(((Agedgeinfo_t*)(((Agobj_t*)(e))->data))->to_virt) == ((void *)0)' failed. # Additional information Also observed with graphviz-2.38 on Ubuntu 14.10. Bug exists upstream with detailed steps to reproduce on http://www.graphviz.org/mantisbt/view.php?id=2456 but I could not create an account there (or even login anonymously). This bug report on LaunchPad may be useful to confirm it affects multiple users. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: graphviz 2.36.0-0ubuntu3.1 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.7 Architecture: amd64 Date: Wed Mar 18 12:01:27 2015 InstallationDate: Installed on 2014-05-15 (306 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash SourcePackage: graphviz UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: graphviz (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1433541 Title: dot crashes with assertion failed on graph with some combinations of duplicated edges To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/graphviz/+bug/1433541/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
