With KIO master, now we should be able to catch a kio-slave in gdb when slaves are forked (the current default), just like we were able to do with kdeinit (when io-slaves aren't forked).
Regards, Ahmad Samir
The wiki has been updated recently
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/Debugging_IOSlaves#If_KDE_FORK_SLAVES_is_set
