Messages in this thread | | | Date | Tue, 06 Aug 2002 06:56:52 -0700 (PDT) | Subject | Re: [TRIVIAL] Warn users about machines with non-working WP bit | From | "David S. Miller" <> |
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From: Kasper Dupont <kasperd@daimi.au.dk> Date: Tue, 06 Aug 2002 16:03:34 +0200
"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?
What if we have to sleep and page in some memory from disk?
Your idea could lead to deadlock in a multi-threaded app. - 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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