modprobe problem

[Josh England]

I'm trying busybox-1.8.2 and running into an issue that used to work
just fine (in busybox-1.2.1).  I'm running busybox in an
initrd/initramfs environment and trying to load kernel modules via
modprobe.  A correct modules.dep file is in place, and insmod can load
the module just fine, but modprobe returns:

modprobe: failed to load module

Any ideas?  This is running on a 2.6.18-7 (RedHat-based) kernel.  My
busybox .config has:

# Linux Module Utilities
#
CONFIG_INSMOD=y
CONFIG_FEATURE_INSMOD_VERSION_CHECKING=y
CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS=y
CONFIG_FEATURE_INSMOD_LOADINKMEM=y
# CONFIG_FEATURE_INSMOD_LOAD_MAP is not set
# CONFIG_FEATURE_INSMOD_LOAD_MAP_FULL is not set
CONFIG_RMMOD=y
CONFIG_LSMOD=y
CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT=y
CONFIG_MODPROBE=y
CONFIG_FEATURE_MODPROBE_MULTIPLE_OPTIONS=y
CONFIG_FEATURE_MODPROBE_FANCY_ALIAS=y

#
# Options common to multiple modutils
#
CONFIG_FEATURE_CHECK_TAINTED_MODULE=y
CONFIG_FEATURE_2_4_MODULES=y
CONFIG_FEATURE_2_6_MODULES=y
# CONFIG_FEATURE_QUERY_MODULE_INTERFACE is not set

Any ideas?

-JE