On Mon, 2008-07-07 at 17:19 +1000, David Gibson wrote: > Until very recently (in fact, even now in mainline) powerpc kernels > had a bug in huge_ptep_set_wrprotect() which meant the 'huge' flag was > not passed down to pte_update() and hpte_need_flush(). This meant the > hash ptes for hugepages would not be correctly flushed on fork(), > allowing the parent to pollute the child's mapping after the fork(). > > This patch adds a testcase to libhugetlbfs for this behaviour, also > doing some other checking of the COW semantics over a fork(). > > Signed-off-by: David Gibson <[EMAIL PROTECTED]> Good test David, thanks... Acked-by: Adam Litke <[EMAIL PROTECTED]>
-- Adam Litke - (agl at us.ibm.com) IBM Linux Technology Center _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
