On Sat, Jan 19, 2002 at 01:35:38AM +0100, Kevin D. Kissell wrote:
> Thank you for posting this to linux-mips, since I'm not sure
> that anyone at MIPS is on the GNU_libc_hacker list.
> It would, in principle, be possible to save/restore k0
> or k1 (but not both) if no other clever solution can be found.
> There are other VM OSes that manage to do so for MIPS,
> for other outside-the-old-ABI reasons. It does, of course,
> add some instructions and some memory traffic to the
> low-level exception handling , and we would have to look
> at whether we would want to make such a feature standard
> or specific to a "thread-ready" kernel build.
Changing the kernel for the small number of threaded applications that
exists and taking a performance impact for the kernel itself and anything
that's using threads is an exquisite example for a bad tradeoff.