Enabling hangcheck only takes effect at the start of a new request
queue. Before we re-enable hangcheck after our poking around, we
therefore need to wait until the gpu is idle otherwise the next test
will start without hangcheck and subsequently hang forever.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Petri Latvala <petri.latv...@intel.com>
---
tests/kms_busy.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tests/kms_busy.c b/tests/kms_busy.c
index d821ec711..ed3caae4c 100644
--- a/tests/kms_busy.c
+++ b/tests/kms_busy.c
@@ -138,6 +138,7 @@ static void flip_to_fb(igt_display_t *dpy, int pipe,
igt_assert(poll(&pfd, 1, 0) == 0);
if (modeset) {
+ gem_quiescent_gpu(dpy->drm_fd);
igt_set_module_param_int("enable_hangcheck", 1);
/* Clear old mode blob. */
--
2.19.0
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