[Intel-gfx] [PATCH i-g-t] tests/gem_render_linear_blits: Increase min swap required

[Derek Morton]

The swap-thrash subtest had a requirement that swap memory be
present but no minimum amount was specified. The subtest allowed
for half the total swap memory for overhead. Some android systems
have a only a small amount of swap space and half this was not
enough resulting in OOM errors. It was not possible to determine
the exact amount of memory the test would require in all
configurations to guarentee swap memory would be used but not
trigger an OOM error.
As a minimum reccomended swap partition on Linux is 256Mb the
subtest was updated to require this.

Also fixed a couple of small memory leaks.

Signed-off-by: Derek Morton <derek.j.morton at intel.com>
---
 tests/gem_render_linear_blits.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tests/gem_render_linear_blits.c b/tests/gem_render_linear_blits.c
index f83c6d4..5dd210d 100644
--- a/tests/gem_render_linear_blits.c
+++ b/tests/gem_render_linear_blits.c
@@ -184,6 +184,9 @@ static void run_test (int fd, int count)
 	}
 	intel_batchbuffer_free(batch);
 	drm_intel_bufmgr_destroy(bufmgr);
+
+	free(bo);
+	free(start_val);
 }
 
 igt_main
@@ -210,7 +213,12 @@ igt_main
 
 	igt_subtest("swap-thrash") {
 		uint64_t swap_mb = intel_get_total_swap_mb();
-		igt_require(swap_mb > 0);
+		/* The calculation of count allows 1/2 the swap memory as
+		   overhead. However on Android systems with a very small swap
+		   partition this is not enough resulting in OOM errors.
+		   As 256Mb is a minimum recomended size for a swap partition
+		   on Linux, skip the subtest if less than this. */
+		igt_require(swap_mb > 255);
 		count = ((intel_get_avail_ram_mb() + (swap_mb / 2)) * 1024*1024) / SIZE;
 		intel_require_memory(count, SIZE, CHECK_RAM | CHECK_SWAP);
 		run_test(fd, count);
-- 
1.9.1