Re: [PATCH] vm_page_prot value

From: David S. Miller (davem@redhat.com)
Date: Thu Jan 17 2002 - 16:16:35 EST


   From: David Engebretsen <engebret@vnet.ibm.com>
   Date: Thu, 17 Jan 2002 12:47:45 -0600

   Following is a patch against 2.4.18-pre3 which fixes a problem where the
   protection on user stack pages are not marked executable even though
   the flags indicate the page is executable. Some more aggressive cache
   flush optimizations may rely on the execution marking to indicate if a page
   needs to be flushed as it might be present in an icache which is not
   coherent with the dcache.

Actually, PAGE_COPY happens to be executable on many platforms.
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