Source: python-fitsio Version: 0.9.11+dfsg-4 Severity: important User: debian-...@lists.debian.org Usertags: alignment
Hi! I've been doing a full rebuild of the Debian archive, building all source packages targeting armel and armhf using arm64 hardware. We are planning in future to move all of our 32-bit armel/armhf builds to using arm64 machines, so this rebuild is to identify packages that might have problems with this configuration. A feature of the arm64 kernel is that it does *not* support fixing up code with broken alignment, so code that might have built and run OK on our older armel/armhf build machines due to kernel fixups will now fail. When building your package, I've found a bus error (aka alignment fault). The full log is online at https://www.einval.com/debian/arm/rebuild-logs/armel/FAIL/python-fitsio_0.9.11+dfsg-4_armel.log for reference I've done a quick bit of debugging to find the source of the bug. Here's a gdb stacktrace to demonstrate the problem. I'm not sure if the likely culprit is the test code here, or the underlying library. (sid-armel)steve@maul:~/debian/build/python-fitsio/python-fitsio-0.9.11+dfsg$ gdb /usr/bin/python2.7 ./.pybuild/cpython2_2.7_fitsio/build/core ... warning: Could not load shared library symbols for fitsio/_fitsio_wrap.so. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/arm-linux-gnueabi/libthread_db.so.1". Core was generated by `python2.7 -m unittest discover -v'. Program terminated with signal SIGBUS, Bus error. #0 ffi8fi8 (input=input@entry=0x7, ntodo=ntodo@entry=1, scale=<optimized out>, zero=0, output=output@entry=0xff861368, status=status@entry=0xff868554) at putcolj.c:1900 1900 putcolj.c: No such file or directory. (gdb) bt #0 ffi8fi8 (input=input@entry=0x7, ntodo=ntodo@entry=1, scale=<optimized out>, zero=0, output=output@entry=0xff861368, status=status@entry=0xff868554) at putcolj.c:1900 #1 0xf5074ae4 in ffpcljj (fptr=0x1, colnum=-149821080, firstrow=<optimized out>, firstelem=<optimized out>, nelem=1, array=0x2303cef, status=0xff868554) at putcolj.c:1442 #2 0xf5074ce4 in ffpcljj (fptr=<optimized out>, colnum=<optimized out>, firstrow=<optimized out>, firstelem=1, nelem=1, array=0x2303cef, array@entry=0x1, status=status@entry=0xff868554) at putcolj.c:1371 #3 0xf50669c4 in ffpcl (status=0xff868554, array=0x1, nelem=1, firstelem=1, firstrow=-768257499031892296, colnum=<optimized out>, datatype=<optimized out>, fptr=<optimized out>) at putcol.c:739 #4 ffpcl (fptr=<optimized out>, datatype=<optimized out>, colnum=<optimized out>, firstrow=1, firstelem=1, nelem=1, array=0x2303cef, status=0xff868554) at putcol.c:668 #5 0xf55699e0 in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?) -- System Information: Debian Release: 9.6 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable-debug'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-8-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)
