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* Jeremy Fitzhardinge <jeremy@goop.org> wrote: > [...] The basic inner loop is: > > push %segreg > mov %selectorreg, %segreg > add $1,%segreg:offset # use the segment register > pop %segreg well, the most important thing i believe you didnt test: the effect of mixing two descriptors on the _same_ selector: one %gs selector value loaded and used by glibc, and another %gs selector value loaded and used by the kernel, intermixed. It's the mixing that causes the descriptor cache reload. (unless i missed some detail about your testcase) Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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