Date: Wed, 14 Feb 2007 22:34:22 +0800 From: LI Xin <delphij@delphij.net> To: Rong-En Fan <rafan@FreeBSD.ORG> Cc: ports@FreeBSD.ORG, Thomas Dickey <dickey@radix.net>, Kirill Ponomarew <krion@voodoo.bawue.com>, Xin LI <delphij@FreeBSD.ORG> Subject: Re: Python 2.4.4 and devel/ncurses Message-ID: <45D31DEE.2070303@delphij.net> In-Reply-To: <20070214143011.GA76316@svm.csie.ntu.edu.tw> References: <20070214143011.GA76316@svm.csie.ntu.edu.tw>
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Hi,
Rong-En Fan wrote:
> distinfo pkg-plist ports/lang/python24/files patch-CVE-2006-4980
> patch-setup.py]
> Reply-To:=20
> In-Reply-To: <20070214130732.GA58681@voodoo.bawue.com>
>=20
> [I move to ports@ for discussion. Also CC'ing ncurses author]
>=20
> 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 R=
ELEASE.
>>
>> cc -DNDEBUG -O2 -fno-strict-aliasing -pipe -D__wchar_t=3Dwchar_t -DTHR=
EAD_STACK_SIZE=3D0x20000 -fPIC -fno-strict-aliasing -I. -I/usr/ports/lang=
/python24/work/Python-2.4.4/./Include -I/usr/local/include -I/usr/ports/l=
ang/python24/work/Python-2.4.4/Include -I/usr/ports/lang/python24/work/Py=
thon-2.4.4 -c /usr/ports/lang/python24/work/Python-2.4.4/Modules/_cursesm=
odule.c -o build/temp.freebsd-6.2-PRERELEASE-amd64-2.4/_cursesmodule.o
>> cc -shared -pthread -O2 -fno-strict-aliasing -pipe -D__wchar_t=3Dwchar=
_t -DTHREAD_STACK_SIZE=3D0x20000 build/temp.freebsd-6.2-PRERELEASE-amd64-=
2.4/_cursesmodule.o -L/usr/local/lib -lncurses -o build/lib.freebsd-6.2-P=
RERELEASE-amd64-2.4/_curses.so
>> Segmentation fault (core dumped)
>> *** Error code 139
>=20
> I can reproduce this with both i386/amd64 6.2-RELEASE with devel/ncurse=
s
> installed. ldd ${WRKSRC}/build/.../_curses.so says it is linked against=
> local/lib/libncurses.so.6 (ktrace on python executable also confirms th=
at).
>=20
> gdb shows (I have devel/ncurses-devel installed instead of ncurses 5.6)=
:
>=20
> (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
>=20
> 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/_c=
ursesmodule.c:2605
> #3 0x000000000047215f in _PyImport_LoadDynamicModule (
> name=3D0x7fffffffdf70 "_curses",
> pathname=3D0x7fffffffdac0 "/home/admin/usr/ports/lang/python24/work=
/Python-2.4.4/build/lib.freebsd-6.2-PRERELEASE-amd64-2.4/_curses.so", fp=3D=
0x80142b3b9)
> at ./Python/importdl.c:53
> #4 0x0000000000470255 in load_module (name=3D0x7fffffffdf70 "_curses",=
> fp=3D0x101, buf=3D0x1 <Error reading address 0x1: Bad address>, typ=
e=3D3,
> loader=3D0x101)
> at /home/admin/usr/ports/lang/python24/work/Python-2.4.4/Python/imp=
ort.c:1689
> #5 0x000000000047061d in import_submodule (mod=3D0x5b3ea0,
> subname=3D0x7fffffffdf70 "_curses", fullname=3D0x7fffffffdf70 "_cur=
ses")
> at /home/admin/usr/ports/lang/python24/work/Python-2.4.4/Python/imp=
ort.c:2276
> [...]
>=20
> I can build python 2.4.4 without problems on 7.x i386, which has ncurse=
s
> 5.6 in base. Moreover, python 2.5 builds fine on these machines, i.e., =
> with devel/ncurses installed.=20
>=20
> 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
can produce this on my i386 crashbox, thanks for the clue.
Cheers,
--=20
Xin LI <delphij@delphij.net> http://www.delphij.net/
FreeBSD - The Power to Serve!
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