On 2015-07-10 17:12-0700 Alan W. Irwin wrote: > On 2015-07-10 23:27+0100 Andrew Ross wrote: > >> >> I've built and run the non-interactive octave tests and they complete with >> no errors using octave-3.8.2 on Ubuntu 15.04 (vivid). I did have some >> build errors, but that was just related to the hdf5.h header being in a >> new location. > > Hi Andrew: > > The current status of the Cygwin octave-3.8.2 issue is > Arjen discovered the problem was an assumption in our scripts > concerning the location of the plplot_octave.oct dll for the Windows > case, and I am in the middle of fixing that assumption. > > However, once I get that fix done, if Arjen runs into additional issues > it is good to know that PLplot basically works for octave-3.8.2 > so many thanks for proving that. > > With regard to the hdf5.h location issue you discovered on Ubuntu, > could you please make the required small adjustment to > cmake/modules/octave.cmake using PATH_SUFFIXES on the find_path > command so that it finds hdf5.h preferentially in the traditional > location (/usr/include/hdf5.h), but if it is not found there it looks > in the subdirectory of that location which is appropriate for Ubuntu > (and probably also later versions of Debian than I have at the > moment).
To Andrew, Arjen and Greg: @Andrew: You referred above to an hdf5.h issue on Ubuntu. Please make the suggested upstream build-system fix so no Ubuntu PLplot builder runs into that issue. Also, could you please run scripts/comprehensive_test.sh --do_test_interactive no on your Ubuntu platform and send me the resulting report tarball, ../comprehensive_test_disposeable/comprehensive_test.tar.gz ? Running that script (with --do_test_interactive no) should be essentially painless (except possibly if you are short of disk space), and that test report on one of our most important platforms would be most useful. The current status of octave on Cygwin is Arjen can now build the octave (3.8.2) binding of PLplot without issues, and all the "p" octave examples work, and "x" examples 00 through 19 work as well. However, he did encounter a segfault for the 20th example. Greg's recent report for the same platform confirms that segfault for octave example 20 issue. Your above good Ubuntu results for octave 3.8.2, and some excellent results I have just now (commit 338492f) achieved for the test_noninteractive target of an epa_built plplot_lite that depends on epa_built octave-3.8.2 supports the hypothesis that the segfault issue Arjen has found and which Greg confirmed is likely nothing to do with octave-3.8.2, and is instead some Windows or Cygwin issue with our Octave-related code or with the octave-3.8.2 Cygwin build or packaging. @Arjen and Greg: since it appears to be impossible for Linux users to replicate the segfault issue you guys are encountering, I think the only way forward for you is to debug this issue on Cygwin. To help simplify that debugging process you should locally modify plplot_test/test_octave.sh.in to remove all examples other than x20. After that, "make test_octave_psc" should just execute the 20th octave example. Once you have achieved that, then proceed with old-fashioned debugging, i.e., locally modify examples/octave/x20c.m to output additional results to localize which octave command is generating the segfault, and then to dump all arguments of that command. In off-list discussion with Arjen we have proved to our mutual satisfication via md5sum, that the git checkout of the lena.pgm file (used by example 20) is identical in the two cases. In other words, git is treating this file (as expected) as a binary file rather than a text file (with accompanying bit flips due to line ending issues). We have also looked at the octave fopen command that opens this file in x20c.m. However, if your preliminary analysis to discover which octave command in x20c.m segfaults indicates the problem could be in the lena data that is read in, then it would be good to double check by dumping some parts of that file from within the example. In any case, I would be happy to run any x20c.m you guys have modified to dump out results to give you a Linux versus Cygwin comparison of those dumped results. Good luck with the bug hunt, and let me know how it goes. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
