Hi!
> We have a system which only has one NUMA node. When trying to run ksm02
> on it, becase the code calling get_allowed_nodes() with a count 2 as
> below:
>
> 972 /* Warning: *DO NOT* use this function in child */
> 973 unsigned int get_a_numa_node(void (*cleanup_fn) (void))
> 974 {
> 975 unsigned int nd1, nd2;
> 976 int ret;
> 977
> 978 ret = get_allowed_nodes(0, 2, &nd1, &nd2);
> 979 switch (ret) {
> 980 case 0:
> 981 break;
> 982 case -3:
> 983 tst_brkm(TCONF, cleanup_fn, "requires a NUMA system.");
>
> it always failed with "requires a NUMA system.".
>
> I think a NUMA system may have only one node, right? If so, could we
> change the count to 1?
Hmm, are you sure that the testcases are actually applicable to a system
with only one node?
Because what the testcases do in the setup is to write 1 to
/sys/kernel/mm/ksm/merge_across_nodes so I would expect that the test
needs at least two nodes...
--
Cyril Hrubis
chru...@suse.cz
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