Hey.
First of all: Thanks for the feedback and your great work on calibre in general.
Two things: I guess you helped me track down the startup issue - it's probably (still investigating) related to /var/run being cleaned after a reboot. So .. thanks and sorry for the noise..
Regarding the core dump: The machine works fine. The only thing I can think of as worth mentioning is that this is a Arch Linux box, running python3 by default (not sure if that might cause trouble). As far as I understood the installation procedure though everything related to calibre should be below /opt now, independent of my system's state of affair?
The coredump/backtrace is probably useless?
Code:
(gdb) bt
#0 0x00007f329afa83d9 in raise () from /usr/lib/libc.so.6
#1 0x00007f329afa97d8 in abort () from /usr/lib/libc.so.6
#2 0x00007f32996cb3d3 in ffi_closure_free () from /opt/calibre/lib/libffi.so.4
#3 0x00007f32998df99f in ?? () from /opt/calibre/lib/python2.7/lib-dynload/_ctypes.so
#4 0x00007f329ac36ddb in ?? () from /opt/calibre/lib/libpython2.7.so.1.0
#5 0x00007f32998d88b7 in ?? () from /opt/calibre/lib/python2.7/lib-dynload/_ctypes.so
#6 0x00007f32998d8aa9 in ?? () from /opt/calibre/lib/python2.7/lib-dynload/_ctypes.so
#7 0x00007f329ac5997d in ?? () from /opt/calibre/lib/libpython2.7.so.1.0
#8 0x00007f329ac35183 in ?? () from /opt/calibre/lib/libpython2.7.so.1.0
#9 0x00007f329ac37b30 in ?? () from /opt/calibre/lib/libpython2.7.so.1.0
#10 0x00007f329ac3aaad in _PyModule_Clear () from /opt/calibre/lib/libpython2.7.so.1.0
#11 0x00007f329acadbf1 in PyImport_Cleanup () from /opt/calibre/lib/libpython2.7.so.1.0
#12 0x00007f329acb73db in Py_Finalize () from /opt/calibre/lib/libpython2.7.so.1.0
#13 0x00007f329b3203f5 in execute_python_entrypoint ()
from /opt/calibre/lib/libcalibre-launcher.so
#14 0x00000000004006ff in main ()