On Tue, Aug 17, 2010 at 12:12:31PM -0400, Paul Koning wrote: > If the goal is to allow older GDB binaries to continue to run, that's > a different matter. But in fact such binaries don't function in a > useful way except with single-threaded applications, so keeping them > running doesn't seem like a particularly interesting goal.
I would think it is useful enough to be able to chroot(8) into a netbsd-5 userland and expect it to work. I am also not sure if there are other users of ptrace(2) that have the same issue. A huge lot of programs is still single threaded, so it shouldn't be broken without good reason. Joerg