#Can't use an undefined value as a symbol reference at /usr/share/perl/5.10/Net/FTP/dataconn.pm line 54.

Binary package hint: debmirror

During a mirror operation, fetching of the packages is stagnating and after a while this error message is thrown:

[ 22%] Getting: pool/updates/main/l/linux-2.6/linux-headers-2.6.26-1-vserver-686_2.6.26-13lenny2_i386.deb ####
[ 22%] Getting: pool/updates/main/l/linux-2.6/linux-headers-2.6.26-1-vserver-amd64_2.6.26-13lenny2_amd64.deb ####
[ 22%] Getting: pool/updates/main/l/linux-2.6/linux-headers-2.6.26-1-xen-686_2.6.26-13lenny2_i386.deb ####
[ 22%] Getting: pool/updates/main/l/linux-2.6/linux-headers-2.6.26-1-xen-amd64_2.6.26-13lenny2_amd64.deb ####
[ 22%] Getting: pool/updates/main/l/linux-2.6/linux-headers-2.6.26-2-486_2.6.26-26lenny2_i386.deb #####
[ 22%] Getting: pool/updates/main/l/linux-2.6/linux-headers-2.6.26-2-686-bigmem_2.6.26-26lenny2_i386.deb #Can't use an undefined value as a symbol reference at /usr/share/perl/5.10/Net/FTP/dataconn.pm line 54.
WARNING: releasing 1 pending lock...

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: debmirror 1:2.4.4ubuntu2
ProcVersionSignature: Ubuntu 2.6.35-27.48-server 2.6.35.11
Uname: Linux 2.6.35-27-server x86_64
Architecture: amd64
Date: Wed Mar 30 13:18:04 2011
InstallationMedia: Ubuntu-Server 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: debmirror