Anand Patil wrote: >> Anand Patil wrote: >> >> >>>>> Matplotlib occasionally crashes Python at the end of a long program on >>>>> my powerbook g4 running OS X 10.4. gdb output follows: >>>>> >>>>> Program received signal EXC_BAD_ACCESS, Could not access memory. >>>>> Reason: KERN_INVALID_ADDRESS at address: 0x0a68fe40 >>>>> 0x002eae50 in visit_decref (op=0x28a1cb0, data=0x0) at >>>>> /Users/ronald/Python/r25/Modules/gcmodule.c:270 >>>>> 270 /Users/ronald/Python/r25/Modules/gcmodule.c: No such file or >>>>> directory. >>>>> in /Users/ronald/Python/r25/Modules/gcmodule.c >>>>> >>>>> or >>>>> >>>>> Program received signal EXC_BAD_ACCESS, Could not access memory. >>>>> Reason: KERN_PROTECTION_FAILURE at address: 0x00000056 >>>>> 0x002eae50 in visit_decref (op=0x28a17e0, data=0x0) at >>>>> /Users/ronald/Python/r25/Modules/gcmodule.c:270 >>>>> 270 in /Users/ronald/Python/r25/Modules/gcmodule.c >>>>> >>>>> It's always something like that, and it always happens after the little >>>>> Python icon starts bouncing around in the dock. I don't know anyone >>>>> named Ronald and no such directory exists on my machine. >>>>> >>>>> >>>>> >>>>> >>>> What version of matplotlib, what version of Python and where did you >>>> them from from (build from source, some binary installer, fink...?) >>>> >>>> -- Russell >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> It's Python 2.5, and the new Matplotlib 0.9 built from source. I saw the >>> same problem with Python 2.4.3 and Matplotlib 0.8.(can't remember), >>> which was part of the reason I upgraded. However, I didn't look at the >>> problem with gdb using the earlier versions. >>> >>> >> This still sounds like a problem in which some component was built with >> a different version of another component than the one you are actually >> running. Are you sure you have only the one version of mpl and one >> version of python, so that the former was compiled against the latter? >> And the same for numpy or Numeric or numarray? >> >> > Totally sure, I erased my old site-packages directory and started over. > I'm using the latest release of numpy. > >> You might want to look back through the mailing list archive; there has >> been a lot of discussion recently about how to get a working combination >> of numpy and mpl on a Mac. >> >> > Will do. > > Come to think of it, could this be a problem with Python itself? > gcmodule.c sounds like the garbage collector. > Yes, but my guess is that gdb is pointing to a problem with garbage collection that is caused by an error or version mismatch elsewhere, most likely in extension code, not in Python itself.
Eric > Thanks, > Anand ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
