Seems several of your Hobbit programs are dumping core. These three cores are probably not from the same program, since they are so different in size:
-rw------- 1 hobbit hobbit 5210112 Mar 19 00:23 tmp/core.21600 -rw------- 1 hobbit hobbit 4038656 Mar 19 00:27 tmp/core.21602 -rw------- 1 hobbit hobbit 49213440 Mar 19 00:31 tmp/core.21520
I'd suspect that .21520 core was from hobbitd, the timestamp matches the log-file entry indicating that hobbitd has crashed.
Before doing anything else, please re-build Hobbit - and run a "make clean" before doing the "make; make install". If the problem persists after that, I would like to see the gdb backtrace from the different programs that crash.
I am not sure I should post my gdb back trace here, but it has been dumping core for at least a week perhaps longer with different daily snapshots. We use the same configs on a much older snapshot with no problems. I am not sure of the date of the stable snapshot
The best way is to extract the version-numbers from each of the source files like this:
$ strings ~hobbit/server/bin/hobbitd|grep \$Id: $Id: hobbitd.c,v 1.279 2008/03/02 12:49:40 henrik Exp henrik $ $Id: hobbitd_buffer.c,v 1.10 2008/01/03 10:08:13 henrik Exp $ ...lots more lines...
Regards, Henrik