Re: crashme panic

[Sascha Wildner <saw@xxxxxxxxx>]

Matthew Dillon wrote:
> :dim# crashme +2000 666 100 1:00:00 5
> :
> :Regards,
> :Sascha
> :
> :-- 
> :http://yoyodyne.ath.cx
>
>     That did it. 
>
>     I think I've figured it out.  The floating point exception is installed
>     as a trap-gate, which leaves interrupts enabled.  If an interrupt occurs
>     just as the FP exception occurs it can change the state of the FPU
>     and confuse npx_intr().
>
>     Try this patch out and tell me if you still get the panic.  It isn't 
>     the 'real' fix, but it will tell us if that is the problem.  The
>     crash does not seem to occur with the patch.
>
>     The real fix is going to be simply to make npx_intr() and npxdna()
>     handle each other's cases as well as their own, and then get rid of
>     the assertion.  I think I also need to have them go into a critical 
>     section.
>
> 					-Matt
> 					Matthew Dillon 
> 					<dillon@xxxxxxxxxxxxx>

Yea,

it seems to no longer panic here either. I have it running for ~15 
minutes now.

Sascha

--
http://yoyodyne.ath.cx