Python 2.4.4 and devel/ncurses

[Rong-En Fan]

On Wed, Feb 14, 2007 at 10:34:22PM +0800, LI Xin wrote:
> Hi,
> 
> Rong-En Fan wrote:
> > [I move to ports@ for discussion. Also CC'ing ncurses author]
> > 
> > On Wed, Feb 14, 2007 at 02:07:32PM +0100, Kirill Ponomarew wrote:
> [...]
> >> Upgrading from python24-2.4.3_3 to python24-2.4.4 fails on AMD64 6.2 RELEASE.
> >>
> >> cc -DNDEBUG -O2 -fno-strict-aliasing -pipe -D__wchar_t=wchar_t -DTHREAD_STACK_SIZE=0x20000 -fPIC -fno-strict-aliasing -I. -I/usr/ports/lang/python24/work/Python-2.4.4/./Include -I/usr/local/include -I/usr/ports/lang/python24/work/Python-2.4.4/Include -I/usr/ports/lang/python24/work/Python-2.4.4 -c /usr/ports/lang/python24/work/Python-2.4.4/Modules/_cursesmodule.c -o build/temp.freebsd-6.2-PRERELEASE-amd64-2.4/_cursesmodule.o
> >> cc -shared -pthread -O2 -fno-strict-aliasing -pipe -D__wchar_t=wchar_t -DTHREAD_STACK_SIZE=0x20000 build/temp.freebsd-6.2-PRERELEASE-amd64-2.4/_cursesmodule.o -L/usr/local/lib -lncurses -o build/lib.freebsd-6.2-PRERELEASE-amd64-2.4/_curses.so
> >> Segmentation fault (core dumped)
> >> *** Error code 139
> > 
> > I can reproduce this with both i386/amd64 6.2-RELEASE with devel/ncurses
> > installed. ldd ${WRKSRC}/build/.../_curses.so says it is linked against
> > local/lib/libncurses.so.6 (ktrace on python executable also confirms that).
> > 
> > gdb shows (I have devel/ncurses-devel installed instead of ncurses 5.6):
> > 
> > (gdb) run
> > Starting program:
> > /home/admin/usr/ports/lang/python24/work/Python-2.4.4/python
> > warning: Unable to get location for thread creation breakpoint: generic
> > error
> > [New LWP 100158]
> > Python 2.4.4 (#1, Feb 14 2007, 21:57:09)
> > [GCC 3.4.6 [FreeBSD] 20060305] on freebsd6
> > Type "help", "copyright", "credits" or "license" for more information.
> > [New Thread 0x604000 (LWP 100158)]
> >>>> import _curses
> > 
> > Program received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread 0x604000 (LWP 100437)]
> > 0x00000008011ad7d4 in keybound () from /lib/libncurses.so.6
> > (gdb) bt
> > #0  0x00000008011ad7d4 in keybound () from /lib/libncurses.so.6
> > #1  0x00000008012fe281 in keyname () from /usr/local/lib/libtinfo.so.5.6
> > #2  0x000000080142c1be in init_curses ()
> >     at /home/admin/usr/ports/lang/python24/work/Python-2.4.4/Modules/_cursesmodule.c:2605
> > #3  0x000000000047215f in _PyImport_LoadDynamicModule (
> >     name=0x7fffffffdf70 "_curses",
> >     pathname=0x7fffffffdac0 "/home/admin/usr/ports/lang/python24/work/Python-2.4.4/build/lib.freebsd-6.2-PRERELEASE-amd64-2.4/_curses.so", fp=0x80142b3b9)
> >     at ./Python/importdl.c:53
> > #4  0x0000000000470255 in load_module (name=0x7fffffffdf70 "_curses",
> >     fp=0x101, buf=0x1 <Error reading address 0x1: Bad address>, type=3,
> >     loader=0x101)
> >     at /home/admin/usr/ports/lang/python24/work/Python-2.4.4/Python/import.c:1689
> > #5  0x000000000047061d in import_submodule (mod=0x5b3ea0,
> >     subname=0x7fffffffdf70 "_curses", fullname=0x7fffffffdf70 "_curses")
> >     at /home/admin/usr/ports/lang/python24/work/Python-2.4.4/Python/import.c:2276
> > [...]
> > 
> > I can build python 2.4.4 without problems on 7.x i386, which has ncurses
> > 5.6 in base. Moreover, python 2.5 builds fine on these machines, i.e., 
> > with devel/ncurses installed. 
> > 
> > So, my guess is that devel/ncurses + base ncurses confuses python 2.4.4
> > build in someway...
> 
> Hmm...  So I guess this is machine independent?  I'll try to see if I

Yes. And, python 2.4.3 fails, too.


Regards,
Rong-En Fan

> can produce this on my i386 crashbox, thanks for the clue.
> 
> Cheers,
> -- 
> Xin LI <delphij at delphij.net>	http://www.delphij.net/
> FreeBSD - The Power to Serve!
> 


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