Segmentation fault in pyuv.fs.write() about pyuv HOT 11 CLOSED

(gdb) frame 2
#2  FS_func_write (obj=<optimized out>, args=<optimized out>, kwargs=<optimized out>) at src/fs.c:2247
2247        memcpy(buf, pbuf, length);
(gdb) p buf
$1 = 0x6ce450 "\250\027\333R6"
(gdb) p pbuf
$2 = 0x7fff00000000 <Address 0x7fff00000000 out of bounds>
(gdb) p length
$3 = <optimized out>

$ sh build_inplace 
running build_ext
No need to build libuv.
building 'pyuv' extension
creating build
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/src
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -DMODULE_VERSION=0.9.4.dev -DLIBUV_REVISION=ba83510 -I/usr/include/python2.7 -Ideps/libuv/include -c src/pyuv.c -o build/temp.linux-x86_64-2.7/src/pyuv.o -O0 -g
In file included from /usr/include/limits.h:26:0,
                 from /usr/lib/gcc/x86_64-redhat-linux/4.7.2/include/limits.h:169,
                 from /usr/lib/gcc/x86_64-redhat-linux/4.7.2/include/syslimits.h:7,
                 from /usr/lib/gcc/x86_64-redhat-linux/4.7.2/include/limits.h:34,
                 from /usr/include/python2.7/Python.h:19,
                 from src/pyuv.h:7,
                 from src/pyuv.c:2:
/usr/include/features.h:330:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
gcc -pthread -shared -Wl,-z,relro build/temp.linux-x86_64-2.7/src/pyuv.o deps/libuv/libuv.a -L/usr/lib64 -lpython2.7 -lrt -o /home/geertj/Source/pyuv/pyuv.so
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.7.2/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --disable-build-with-cxx --disable-build-poststage1-with-cxx --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.7.2 20121109 (Red Hat 4.7.2-8) (GCC)