Re: [coLinux-devel] 0.5.4 on old CPU

[Dan A. <da...@gm...>]

On Thu, Feb 26, 2004 at 09:34:21PM +0600, Dmitriy Kazimirow wrote:
> Welcome all
> I tried using 0.5.3 and 0.5.4 on old machine with amd k6-3+ CPU
> 0.5.3 runs ok but 0.5.4 crash my win2k
> (I tried only Debian 1gb imaged,updated to 3.0r1 using Debian CDs)
> After investing this issue I think I found the problem:
> 1.almost all is cross-compiled with i686-pc-cygwin
> 2.context switch code in src\colinux\arch\i386\passage.c use
> fxsave/fxrestor(which just not avaible on old CPUs)(fsave/frestor is
> avaible but not save SSE context but SSE is not exist on k6 anyway)
> 
> here is patch for build 0.5.4 which will work on old CPUs
> (possible problem is that SSE state will not be saved when patched
> version runs on modern CPUs,better use some #define to detect minimal
> target CPU)

Did you actually test it?
The patch below is a reversed one, BTW.

I'll try to see how we can merge it in.

-- 
Dan Aloni
da...@gm...