> So it seems that CONFIG_X86_USE_3DNOW is simply used to
> enable access to the routines in mmx.c (the athlon-optimized
> routines on CONFIG_K7 kernels), so then it appears that somehow
> this is corrupting memory / not behaving as it should (very
> technical, right?) :)...
Do you use any unusual (binary only/with source) kernel modules?
mmx.c stores the current contents on the fpu registers into
current->thread.i387.f{,x}save.
If another module modifes the fpu registers and calls memmove it will
cause fpu corruptions.
I checked that a few months ago, and no module in the main kernel tree
does that.
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This archive was generated by hypermail 2b29 : Mon May 07 2001 - 21:00:11 EST