I debug a multithreaded process (evolution-2.4). When I enable an IMAP provider in the application and this action spawns some child process, gdb puts out these messages: [New Thread 81926 (LWP 20588)] Detaching after fork from child process 20589. After that, it stops reacting to keyboard input, including Ctrl-C.
The problem should gone with update to gdb-6.6-alt1. Please reopen if not.