Hi, I use kill_pid in one of our drivers to signal a user-space daemon to perform a particular action (open-UART for instance), I recently ran into problems with permissions as to when a user with stranger UID started open up a device, which internally calls the kill_pid in that context, could not send the signal and returned with "permission denied".
I started using kill_pid_info_as_uid and sent signals as UID 0 to solve the problem, it did solve the problem, but is this the right approach? Also why is not suggested to use kill_pid and family to communicate with user-space? (namespace issues??- what do they mean?) Note: I get the PID of the process which receives signal from one of the sysfs entries created by driver, but filled up by the daemon... -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecar...@nl.linux.org Please read the FAQ at http://kernelnewbies.org/FAQ
