i386 cache flush from user space exception

From: Jan Beulich
Date: Wed Aug 11 2004 - 09:28:23 EST


arch/i386/kernel/traps.c, in function do_simd_coprocessor_error, refers
to such an undocumented thing. I haven't been successful in finding any
references elsewhere to such behavior, and hence I found the only choice
would be to ask here whether anyone can provide some background and/or
pointers to what functionality is being dealt with here.

Thanks a lot, Jan
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