Re: FPU-intensive programs crashing with floating point exception on Cyrix MII

[Ondrej Zary <linux@rainbow-software.org>]

Chuck Ebbert wrote:
> On Wed, 17 Aug 2005 at 18:13:55 +0200, Ondrej Zary wrote:
>
>
> > When I run a program that uses FPU, it sometimes crashes with "flaoting 
> > point exception"
>
>
>
> > +     printk("MATH ERROR %d\n",((~cwd) & swd & 0x3f) | (swd & 0x240));
>
>
>   Could you modify this to print the full values of cwd and swd like this?
>
>         printk("MATH ERROR: cwd = 0x%hx, swd = 0x%hx\n", cwd, swd);
>
> Then post the result.
MATH ERROR: cwd = 0x37f, swd = 0x5020
MATH ERROR: cwd = 0x37f, swd = 0x20
MATH ERROR: cwd = 0x37f, swd = 0x20
MATH ERROR: cwd = 0x37f, swd = 0x2020
MATH ERROR: cwd = 0x37f, swd = 0x20
MATH ERROR: cwd = 0x37f, swd = 0x1820
MATH ERROR: cwd = 0x37f, swd = 0x1820
MATH ERROR: cwd = 0x37f, swd = 0x2020
MATH ERROR: cwd = 0x37f, swd = 0x20
MATH ERROR: cwd = 0x37f, swd = 0x2800
MATH ERROR: cwd = 0x37f, swd = 0x1820
MATH ERROR: cwd = 0x37f, swd = 0x820
MATH ERROR: cwd = 0x37f, swd = 0x2820
MATH ERROR: cwd = 0x37f, swd = 0x2820
MATH ERROR: cwd = 0x37f, swd = 0x1820
MATH ERROR: cwd = 0x37f, swd = 0x820
MATH ERROR: cwd = 0x37f, swd = 0x1a20

Running prime95 for almost 2 hours:
Torture Test ran 1 hours, 54 minutes - 0 errors, 0 warnings.
and playing some mpeg clips.

--
Ondrej Zary
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