[Python-Dev] problem with pymalloc on the BeOS port.

[François Revol]

Hi there,
I'm updating the BeOS port of python to include the latest version in 
Zeta, the next incarnation of BeOS.

I'm having some problem when enabling pymalloc:

case $MAKEFLAGS in \
*-s*) LIBRARY_PATH=/boot/home/Python-2.3.4:%A/lib:/boot/home/config/
lib:/boot/beos/system/lib CC='gcc' LDSHARED='./Modules/ld_so_beos 
libpython2.3.so' OPT='-O' ./python -E ./setup.py -q build;; \
*) LIBRARY_PATH=/boot/home/Python-2.3.4:%A/lib:/boot/home/config/lib:/
boot/beos/system/lib CC='gcc' LDSHARED='./Modules/ld_so_beos 
libpython2.3.so' OPT='-O' ./python -E ./setup.py build;; \
esac
running build
running build_ext
building 'struct' extension
gcc -O -fno-strict-aliasing -I. -I/boot/home/Python-2.3.4/./Include -I/
boot/home/config/include -I/boot/home/Python-2.3.4/Include -I/boot/home
/Python-2.3.4 -c /boot/home/Python-2.3.4/Modules/structmodule.c -o 
build/temp.beos-5.1-BePC-2.3/structmodule.o
Debug memory block at address p=0x80010fb8:
    0 bytes originally requested
    The 4 pad bytes at p-4 are FORBIDDENBYTE, as expected.
    The 4 pad bytes at tail=0x80010fb8 are not all FORBIDDENBYTE 
(0xfb):
        at tail+0: 0xdb *** OUCH
        at tail+1: 0xdb *** OUCH
        at tail+2: 0xdb *** OUCH
        at tail+3: 0xdb *** OUCH
    The block was made by call #3688627195 to debug malloc/realloc.
Fatal Python error: bad trailing pad byte


indeed, there seem to be 4 deadblock marks between the forbidden ones, 
while the len is supposed to be null:
python:dm 0x80010fb8-8 32
80010fb0  00000000 fbfbfbfb  dbdbdbdb fbfbdbdb                 
................
80010fc0  0100fbfb 507686ef  04000000 fbfbfbfb                 
......vP........
80010fd0  8013cbc8 fbfbfbfb  44ee0100 ffed0100                 
...........D....

Any clue ?

François.