Messages in this thread | | | Date | Tue, 06 Aug 2002 16:03:34 +0200 | From | Kasper Dupont <> | Subject | Re: [TRIVIAL] Warn users about machines with non-working WP bit |
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"David S. Miller" wrote: > > verify_area() checks aren't enough, consider a threaded application > calling mprotect() while the copy is in progress.
Couldn't we just freeze all other processes with the same mm while a copy_to_user is in progress?
Of course this should only be done if CONFIG_X86_WP_WORKS_OK is not enabled, so systems with a working wp doesn't have to take a performance hit.
-- Kasper Dupont -- der bruger for meget tid på usenet. For sending spam use mailto:razrep@daimi.au.dk or mailto:mcxumhvenwblvtl@skrammel.yaboo.dk - 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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