I am seeing what looks like the identical problem, also on 10.4. My USB parallel port adapter reports the same model number; perhaps that's a clue.
[ 192.635352] usb[1946]: segfault at 0 ip 00007f1b79fd5b44 sp 00007ffffa6e1b68 error 4 in libc-2.11.1.so[7f1b79f4f000+17a000] Bus 005 Device 002: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port -- CUPS usb-subsystem(?) crashes while trying to touch printer https://bugs.launchpad.net/bugs/555097 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs