| Subject: | Non-terminating v0.57 |
| Date: | Tue, 28 Aug 2007 15:58:31 -0400 |
| To: | bug-Graph-Easy [...] rt.cpan.org |
| From: | Mitchell Perilstein <mperilstein [...] trueposition.com> |
Greets,
This input will hang v0.57 under perl v5.8.8 built for
i486-linux-gnu-thread-multi:
graph {
flow: south;
}
[0]
-> [2]
-> [3]
-> [6]
-> [10]
[0] -> [3]
[2] -> [10]
[3] -> {start:west; end:west;} [10]
[0] -> { end:east; } [6]
[0] -> [10]
Taking out the end:east; in 0->6 will let it terminate with a warning.
I ran it like this: PERLDB_OPTS="NonStop frame=1 AutoTrace
LineInfo=tperl.out" perl -d /usr/local/bin/graph-easy --verbose hangs.graph
Breaking after about 10s gave stacktrace as below, with full trace attached.
. = Graph::Easy::_straighten_path(ref(Graph::Easy), ref(ARRAY),
ref(ARRAY), ref(Graph::Easy::Edge)) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy/Layout/Scout.pm' line 1353
$ = Graph::Easy::_astar(ref(Graph::Easy), ref(ARRAY), ref(ARRAY),
ref(Graph::Easy::Edge), 3) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy/Layout/Scout.pm' line 1025
$ = Graph::Easy::_find_path_astar(ref(Graph::Easy),
ref(Graph::Easy::Edge)) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy/Layout/Scout.pm' line 125
$ = Graph::Easy::_find_path(ref(Graph::Easy), ref(Graph::Easy::Node),
ref(Graph::Easy::Node), ref(Graph::Easy::Edge)) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy/Layout/Path.pm' line 732
$ = Graph::Easy::_trace_path(ref(Graph::Easy), ref(Graph::Easy::Node),
ref(Graph::Easy::Node), ref(Graph::Easy::Edge)) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy/Layout.pm' line 754
. = Graph::Easy::_layout(ref(Graph::Easy)) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy/Layout.pm' line 485
. = eval {...} called from file
`/usr/local/share/perl/5.8.8/Graph/Easy/Layout.pm' line 472
. = Graph::Easy::layout(ref(Graph::Easy)) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy.pm' line 1536
@ = Graph::Easy::_as_ascii(ref(Graph::Easy)) called from file
`/usr/local/share/perl/5.8.8/Graph/Easy.pm' line 1520
@ = Graph::Easy::as_ascii(ref(Graph::Easy)) called from file
`/usr/local/bin/graph-easy' line 135
--
mitch
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