This appears to be similar to the following bug report: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=587702
rmt got rewritten from scratch in tar 1.23, which could well have caused the problem. However, we don't have a recipe for reproducing the problem. (The command shown in http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=587702 works for me.) Can you do an "strace" or "truss" on the processes that are hanging? That might help figure out what's going on. Thanks.
