AVR32 segfault

root@OpenWrt:/# lsmod
Module                  Size  Used by    Not tainted
gadgetfs                8176  1
atmel_usba_udc          7744  1 gadgetfs
nf_nat_tftp              480  0
nf_conntrack_tftp       2216  1 nf_nat_tftp
nf_nat_irc               736  0
nf_conntrack_irc        2220  1 nf_nat_irc
nf_nat_ftp              1056  0
nf_conntrack_ftp        3680  1 nf_nat_ftp
ppp_async               4704  0
ppp_generic            13300  1 ppp_async
slhc                    2848  1 ppp_generic
crc_ccitt                992  1 ppp_async
root@OpenWrt:/# rmmod foo
rmmod[609]: segfault at 00073ed4 pc 00073ed4 sp 7fab6d94 ecr 6
Segmentation fault
root@OpenWrt:/# insmod gadgetfs
insmod[610]: segfault at 00073ed4 pc 00073ed4 sp 7fdc89fc ecr 6
Segmentation fault
root@OpenWrt:/#