| To: | Alexey Kuznetsov <kuznet@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: ping bug |
| From: | Chris Wedgwood <cw@xxxxxxxx> |
| Date: | Mon, 30 Jul 2001 22:33:41 +1200 |
| Cc: | Ralf Baechle <ralf@xxxxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <200107282351.DAA00187@mops.inr.ac.ru> |
| References: | <200107282351.DAA00187@mops.inr.ac.ru> |
| Sender: | owner-netdev@xxxxxxxxxxx |
| User-agent: | Mutt/1.3.18i |
On Sun, Jul 29, 2001 at 03:51:10AM +0400, Alexey Kuznetsov wrote:
Are you about kernel? Well, if such thoughts visit you, then help
me to answer simpler question: what is the simplest method to use
FPU from irqs?
Run away, run away!!!!
Alas, softmodem drivers need this. That which have this part of
code open just saves fpu context at each irq. Even not doing
clts. :-) But what to change in core to make this correctly (and
faster)?
How else can you do this? You can think of various lazy save/restore
schemes but I can't see how to make any of them work on SMP systems
cleanly.
--cw
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