Re: Linux 2.3.39 has 32bit uid. What about 32bit pid?

[Alan Cox]

> Thus, if we change get_pid() so as to use pids larger than 32000
> we need CONFIG_15BIT_PID (default=n) so that people who cannot or
> do not want to recompile their ipc using stuff can use a new kernel.

/proc/sys/kern/max_pid ?

> (Only very few programs are affected. Making new rpms available
> for people upgrading to 2.4 would suffice.)

Then I think it is worth while, shared cluster folks have been asking about
stuff like node <<8 | pid for a while, and 16bit pid_t is going to be too
small the way big PC kit is going

> Aha, so that was obstacle 1. Obstacle 2 is the inode numbering the kernel
> uses internally for /proc. That would have to change.

True