It appears that when accessing a mounted NTFS filesystem (via mount_ntfs) with a non-default (default is 4096) cluster size, FreeBSD has problems listing directories on said filesystem. /bin/ls errors with "Argument list too long" while listing directories containing any amount of files (from what I can tell). I experienced this problem on a filesystem with 16k clusters. Booted into WinXP and used PartitionMagic to resize to 4096 (from the 8192 I was using previously on that particular filesystem), and was able to once again list files in FreeBSD without any problem. I was unable to find any related bugs in the database. Fix: Resize NTFS clusters to 4096. How-To-Repeat: Resize an NTFS partition to 8192, 16384, etc.; boot into FreeBSD 6.x; issue "ls" in any dir which contains any number of "normal" files and/or subdirs. You should see "<filename/directory>: Argument list too long" repeated several times.
Responsible Changed From-To: freebsd-bugs->freebsd-fs Over to maintainer(s).
6.1 is so far past EOL as this pr is now meaningless. And ntfs has been removed from 10.0 base see http://svnweb.freebsd.org/base/head/sbin/Makefile?view=log&pathrev=247665
NTFS support has been removed from the base system.