[issue931] FXRSTR: illegal FP MXCSR ffff002f didinit = 0

[ejc]

On Jan 28, 2008 9:59 AM, Matthew Dillon <bugs at lists.dragonflybsd.org> wrote:
>
> Matthew Dillon <dillon at apollo.backplane.com> added the comment:
>
>
> :..
> :commenting out the FPE which would cause a panic.  I'll put that back
> :in so I can debug, though
> :it wasn't very helpful last time.  I don't see how that could bring in
> :any old stuff, unless the build
> :process is messed up.
> :
> :Eric
>
>     Maybe you did something to your /etc/make.conf that is blowing up the
>     build.   High bits of ffff can only happen when userland overwrites
>     the signal stack fp save area with a fnsave instruction, and only the
>     old threaded libc_r did that.

I resync'd my cvs repo and rebuilt world and kernel with the /etc/make.conf from
a recent snapshot image.  Same problem.  This morning I downloaded
2CSNAP-20080128-2330-Devel.iso  Booting from it results in the same error.  This
can't be a problem with my build env if a snapshot CD exhibits the error.

Eric