Ok, btsync is not running well at all on that box. The i386 version exits after about 10 seconds with this dump: https://dl.dropboxusercontent.com/u/4343030/4380f07d-14dc-c68e-47b5b7b7-70802820.dmp https://dl.dropboxusercontent.com/u/4343030/core The glibc 2.3 version (although it shouldn't fit my system), runs up a bit longer, about 2 minutes, syncing seems to be working, then it exits just like that, no dump, no nothing. I have no idea where to go from here :-( A bit about my system (debian wheezy on a fit-pc): atte@vodskov:~$ ulimit -c unlimited atte@vodskov:~$ uname -a Linux vodskov 3.2.0-4-486 #1 Debian 3.2.41-2+deb7u2 i586 GNU/Linux atte@vodskov:~$ ll /lib/i386-linux-gnu/libc.so.6 lrwxrwxrwx 1 root root 12 May 26 15:33 /lib/i386-linux-gnu/libc.so.6 -> libc-2.13.so atte@vodskov:~$ /lib/i386-linux-gnu/libc.so.6 GNU C Library (Debian EGLIBC 2.13-38) stable release version 2.13, by Roland McGrath et al. Copyright (C) 2011 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Compiled by GNU CC version 4.4.7. Compiled on a Linux 3.2.35 system on 2012-12-30. Available extensions: crypt add-on version 2.1 by Michael Glad and others GNU Libidn by Simon Josefsson Native POSIX Threads Library by Ulrich Drepper et al BIND-8.2.3-T5B libc ABIs: UNIQUE IFUNC For bug reporting instructions, please see: <http://www.debian.org/Bugs/>. Btsync is running just fine on my laptop running crunchbang linux. Needles to say, I'd really appreciate any pointers, and would be more than happy to supply any info that could help track this down.