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IDProjectCategoryView StatusDate SubmittedLast Update
0001724graphvizDotpublic2009-09-30 08:442011-05-24 17:11
ReporterPhilipp Thomas 
Assigned Togviz 
PrioritynormalSeveritymajorReproducibilityalways
StatusacknowledgedResolutionopen 
PlatformOSx86-Linux-openSUSE 11.2 MilestonOS Version
Summary0001724: dot aborts in pgram.dot
Description


As you can see in https://bugzilla.novell.com/show_bug.cgi?id=542703 [^]



dot from graphviz 2.20 chokes on pgram.dot supplied with the package:



dot -v -Tps /usr/share/graphviz/graphs/directed/pgram.dot
<CD>
Activated plugin library: libgvplugin_pango.so.5
Using textlayout: textlayout:cairo
Activated plugin library: libgvplugin_dot_layout.so.5
Using layout: dot:dot_layout
Activated plugin library: libgvplugin_core.so.5
Using render: ps:core
Using device: ps:ps:core
The plugin configuration file:
        /usr/lib64/graphviz/config
                was successfully loaded.
    render : cairo dot fig gd map ps svg tk vml vrml xdot
    layout : circo dot fdp neato nop nop1 nop2 twopi
    textlayout : textlayout
    device : bmp canon cmap cmapx cmapx_np dia dot eps fig gd gd2 gif
    gtk hpgl ico imap imap_np ismap jpe jpeg jpg mif mp pcl pdf pic plain
    plain-ext png ps ps2 svg svgz tif tiff tk vml vmlz vrml vtx wbmp xdot
    xlib
    loadimage : (lib) gd gd2 gif jpe jpeg jpg png ps svg xbm
fontname: "Times-Roman" resolved to: (ps) "Arial 14"
network simplex: 3 nodes 2 edges 0 iter 0.00 sec
mincross: pass 0 iter 0 trying 0 cur_cross 0 best_cross 0
mincross: pass 0 iter 0 trying 0 cur_cross 0 best_cross 0
mincross: pass 0 iter 0 trying 0 cur_cross 0 best_cross 0
mincross: pass 0 iter 0 trying 0 cur_cross 0 best_cross 0
mincross: pass 0 iter 0 trying 0 cur_cross 0 best_cross 0
mincross: pass 0 iter 0 trying 0 cur_cross 0 best_cross 0
mincross test: 0 crossings, 0.00 secs.
network simplex: 111 nodes 160 edges 19 iter 0.00 sec
Aborted
</CD>



When checking with gdb I get:



<CD>
Program received signal SIGABRT, Aborted.
0x00007ffff76284e5 in raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
64 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
        in ../nptl/sysdeps/unix/sysv/linux/raise.c
(gdb) where
#0 0x00007ffff76284e5 in raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
0000001 0x00007ffff76299b0 in abort () at abort.c:88
0000002 0x00007ffff71ebc6e in growdq (newdqn=<value optimized out>) at shortest.c:559
0000003 Pshortestpath (newdqn=<value optimized out>) at shortest.c:124
0000004 0x00007ffff7b92369 in _routesplines (pp=0x8, npoints=<value optimized out>, polyline=<value optimized out>) at routespl.c:466
0000005 0x00007ffff31fd6d5 in make_flat_edge (sp=<value optimized out>, P=0x69fd10, edges=<value optimized out>, ind=<value optimized out>, cnt=<value optimized out>,
    et=<value optimized out>) at dotsplines.c:1242
0000006 0x00007ffff31fc664 in _dot_splines (g=<value optimized out>, normalize=<value optimized out>) at dotsplines.c:393
0000007 0x00007ffff31f1cee in t (g=0x617de0) at dotinit.c:212
0000008 0x00007ffff7b81310 in gvLayoutJobs (gvc=<value optimized out>, g=0x617de0) at gvlayout.c:69
0000009 0x0000000000400ddc in main (argc=<value optimized out>, argv=0x7fffffffdfe8) at dot.c:180
</CD>



So the abort is in shortest.c(growdq) when malloc fails. What irritates me
is that the message from perror doesn't seem to be printed.



Question now is if this is a bug in dot or is there just not enough memory
available (x86-64 aka AMD64 with 3 GiB Memory).



As told in the report, it's pgram.dot from the graphviz examples.
Additional Information
[erg] I am unable to reproduce this on our Linux server with version 2.25. Maybe John can get it
to fail.

In any case, the bug is very strange, in that the input graph is small and the call to malloc
only occurs on the first call of growdq, in which case, it asks for 96 bytes. So memory
should not be an issue.

I'm wary of all of those values optimized out in the traceback.
TagsNo tags attached.
AUXILLARY-FILES
DATE-FIXED
FIX-COMMENT
FORMER-ID1778
INPUT-FILEhttp://www.graphviz.org/bugs/b1778.dot [^]
OUTPUT-FILE
STATUS-COMMENT*
VERSION     2.20
Attached Files

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-  Notes
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- Issue History
Date Modified Username Field Change
2011-04-28 04:03 user1 New Issue
2011-04-28 04:03 user1 Assigned To => user1
2011-05-24 17:11 dperry INPUT-FILE b1778.dot => b1778.dot
2011-05-24 17:11 dperry Description Updated View Revisions
2011-05-24 17:11 dperry Additional Information Updated View Revisions


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