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On Wed, Oct 01, 2003 at 08:31:32AM +0100, Jamie Lokier wrote: > doesn't that fix the problem and while also being an improvement in > lots of other ways? The only reason it wouldn't work is if the VMA > list can contain regions >= TASK_SIZE, but I don't think that is done. vsyscalls has at least one vma > TASK_SIZE for ptrace, but it is afaik not included in the vma tree. > search_exception_table doesn't take any locks for non-module entries, > so it can fixup the __get_user in __is_prefetch when that occurs > inside locked regions of the kernel. Hmm. Good point. Yes, I agree the check could be removed now. -Andi - 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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