Package: graphviz Version: 2.26.3-12 Severity: important Hi. Here's a graph which makes dot fail with
[1] 32214 abort dot /tmp/crash.dot
Here it is:
// dot crash.dot # crashes
digraph g {
rankdir="LR" // RL is bad too, but TB/BT are fine
// A // insert this line...
B -> C // ... and swap this
C -> B // with this: then the crash goes away
B -> E
E -> F // but only if A -> E below, not if A -> C
A -> D
subgraph {rank="same"; B; C}
subgraph {rank="same"; A -> C} // or A -> E
subgraph {rank="same"; F -> D}
}
It doesn't make neato, fdp, circo or twopi fail.
If you run `dot -v9001', the last line of output is
'network simplex: 11 nodes 12 edges 2 iter 0.00 sec'
As I understand it, `network simplex' is part of the dot-specific graph layout
algorithm, so it makes sense that it crashes *there*, and not e.g. after
'loadimage' (see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=698066)
Possibly related bugs, beyond that one, might be
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=292385
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=383261
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=505436
In revision 9118:7dac23a1c3a9 from http://hg.research.att.com/graphviz the
problem doesn't exist.
Cheerio,
JK
PS. Let me know if I have more information I can usefully add to this.
-- System Information:
Debian Release: 7.0
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages graphviz depends on:
ii libc6 2.13-37
ii libcdt4 2.26.3-12
ii libcgraph5 2.26.3-12
ii libexpat1 2.1.0-1
ii libgd2-xpm 2.0.36~rc1~dfsg-6.1
ii libgraph4 2.26.3-12
ii libgvc5 2.26.3-12
ii libgvpr1 2.26.3-12
ii libx11-6 2:1.5.0-1
ii libxaw7 2:1.0.10-2
ii libxmu6 2:1.1.1-1
ii libxt6 1:1.1.3-1
Versions of packages graphviz recommends:
pn ttf-liberation <none>
Versions of packages graphviz suggests:
pn graphviz-doc <none>
ii gsfonts 1:8.11+urwcyr1.0.7~pre44-4.2
-- no debconf information
--
Med venlig hilsen
Jonas Kölker <j...@intempus.dk> (+45) 30 95 49 40
Software-konstruktør, IT-handyman, data-mekaniker :-)
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