I uninstalled ClamAV version 90.2 and downloaded and installed ClamAV
version 0.92 and the 'calloc' error went away. Please note that the patch
to clamav provided by Bill Shupp only makes some minor changes the final
clamav and freshclam configuration files - not to any of the source - so
you
My google results say that it may be a clamav error not simscan.
Take a look at the clamav log file. Please note that Fedora 7 and 8 i
don't know for sure if earlier versions do that but these versions are
shipped with a broken package of signature databases that prevents clamav
to function proper