From: Hezekiah M. C. <hez...@us...> - 2009-09-04 17:18:40
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On Fri, Sep 4, 2009 at 11:49 AM, Hazen Babcock<hba...@ma...> wrote: > Alan W. Irwin wrote: >> (1) The above command-line parsing issue. The valgrind investigations I >> suggested for this case may allow you to find the reason for this error and >> fix it in a relatively small amount of time. Do you have time to work on >> this before the weekend of September 12th/13th? > > I can try, but since I am the only one who seems to run into this > problem and I have a pretty vintage OS-X box (32bit PowerPC, OS-X 10.4) > at this point, I don't attach much importance to it. Also, remember that > this only effects the xcairo and aqt drivers. I guess if I could figure > out how to pass command line arguments using gdb I'd be willing to try > that and see what happens. To pass command line arguments in gdb, add them to the "run" command. For example: $ gdb ./x01c <gdb copyright and other output> (gdb) run -dev xcairo That should be equivalent to running "./x01c -dev xcairo" >> (3) plend/xcairo segfaults on all (?) platforms. Certainly, I see this >> issue on my platform. Hez, are you working on this one? > > I thought that all the cairo drivers had this issue? I'd be really > surprised if we could solve this one in a week though given how long it > has been with us. My recollection is that problem goes away if we don't > use dynamic drivers or if we don't render any text, suggesting some > mixture of Pango, dynamics drivers and loading/unloading libltdl resources. These points are all true, from what I have seen and remember. If one avoids text then there is no segmentation fault on any platform I have tested. Also, last I checked, this does not occur on Fedora. It has been a while since I have tested this particular issue there though. I agree with Hazen that it is not currently worth delaying the release for this. It is a bad problem, but I don't think an extra week will make much of a difference in this case. Hez -- Hezekiah M. Carty Graduate Research Assistant University of Maryland Department of Atmospheric and Oceanic Science |