radius crashes sometimes on arm architecture.

Version is:
radiusd: FreeRADIUS Version 2.1.10, for host armv5tel-unknown-linux-gnu, built on Nov 20 2011 at 17:41:56

>From gdb output: Maybe this is the reason?(around line 550)

#1  0x00034428 in radius_do_cmp (request=0x14b9b98, modreturn=<value optimized out>, depth=<value optimized out>, ptr=<value optimized out>,
    evaluate_it=Cannot access memory at address 0x630
) at evaluate.c:528

The complete gdb output is a bit longer and can be found at:
http://www.wegener-net.de/freeradius/radius-crash-gdb.txt