Re: sunffb
Marc Aurele La France <[email protected]>
| Newsgroups | gmane.comp.xfree86.devel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 31 May 2005, Martin Husemann wrote:
> On Tue, May 31, 2005 at 08:23:39AM -0600, Marc Aurele La France wrote:
>> What does NetBSD do with the trap?
> Re-enable the FPU, restore old FPU state, and retry. No signal to userland
> is generated.
> This is the standard lazy fpu saving game - it just did not occur to us
> that userland code would try the trick played here. We are now investigating
> and might special case this too. The current trap handling for this case
> in NetBSD definitively is suboptimal.
>> Another option would be to export something like xf86{En,Dis}ableFPU() from
>> os-support/ and have OS-specific implementations there.
> I'm not sure this is worth it.
So you're suggesting this should/will be fixed in NetBSD's kernel?
Marc.
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