svn commit: r205444 - head/sys/i386/i386

Paul B Mahol onemda at
Tue Mar 23 20:35:11 UTC 2010

On 3/23/10, Kostik Belousov <kostikbel at> wrote:
> On Tue, Mar 23, 2010 at 08:21:31PM +0100, Ed Schouten wrote:
>> * Ed Maste <emaste at> wrote:
>> > I was just about to follow up with a comment to that effect.  We do want
>> > it to become a panic, but I would prefer to hold off until we address
>> > the known issue with padlock(4).
>> I have seen this message appear when using the ndisulator as well. How
>> are we going to solve it in this case? Could the ndisulator be extended
>> to prepare a FPU context using kib's new API?
> I looked at
> after someone mentioned ndisulator. It seems that windows requires
> that i386 drivers carefully use braces for use of FPU, while amd64
> code allowed to use it freely. That suggests that windows clears
> TS on kernel mode entry or driver calls, that seems to be too
> wastefull.
> I would very much appreciate the help with changing both ndis and
> padlock to use fpu_kern_enter/leave KPI, since I do not use them.
> I need some time to polish the patch before.

I saw fpudna only on amd64, but I never managed to get ndisulator
fully working on amd64 (at least with broadcom card/driver).

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