Re: 2.2: TaskID's for CLONE_PID? Proper signal handling?

Peeter Joot (peeter@joot.com)
Mon, 29 Dec 1997 22:32:45 -0500

In article <34A841FC.49D7B9B5@ucsd.edu> you write:
>Hi, I've been watching LinuxThreads develope for a while, and it seems
>possible that the KERNEL problems could be fixed in 2.2. Adding TIDs
>seems a major step (though I could be wrong) as does getting the proper
>signal stuff working. Maybe even MT debugging?
> I've actually seen posts on linux-kernel about people working on ALL of
>these, so it should be possible. What's the likelyhood of these
>features getting into 2.2, though?

I have been _slowly_ working on some CLONE_PID changes (tids, proc, sharing
pids,uid,gid,groups, ...) but there are a lot of little details that make
things much more intricate than I thought it would be. Even if I finish this
stuff before 2.2 I don't think it should go in as it needs lots of testing.

It looks like the _NSIG==32 limit is now gone with the new signal handling
code, so we should be able remove the linuxthreads dependence on SIGUSR[12],
providing the libc support is there (glibc).

I think that MT debugging should probably be possible right now with some
user level gdb work but I don't know for sure.

Peeter