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Fix memcontrol03 testcase failure on powerpc. #1297

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Fix memcontrol03 testcase failure on powerpc. #1297

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10 changes: 10 additions & 0 deletions testcases/kernel/controllers/memcg/memcontrol03.c
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Original file line number Diff line number Diff line change
Expand Up @@ -212,7 +212,17 @@ static void test_memcg_min(void)
sleep(1);
}

/*
* On ppc64le with 64KB page size, the 148MB allocation triggers OOM
* due to memory accounting overhead and slower pagecache eviction.
* Use 140MB to provide safety margin while creating sufficient pressure
* to test memory.min protection effectively.
*/
#ifdef __powerpc64__
alloc_anon_in_child(trunk_cg[G], MB(140), 0);
#else
alloc_anon_in_child(trunk_cg[G], MB(148), 0);
#endif

SAFE_CG_SCANF(trunk_cg[B], "memory.current", "%ld", c);
TST_EXP_EXPR(values_close(c[0], MB(50), 5),
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