igt/gem_eio: Use slow spinners to inject hangs

One weird issue we see in bug 104676 is that the hangs are too fast on
HSW! So force the use of the slow spinners that do not try to trigger
a hang by injecting random bytes into the batch.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104676
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/igt_gt.c b/lib/igt_gt.c
index ad6e6205..f70fcb92 100644
--- a/lib/igt_gt.c
+++ b/lib/igt_gt.c
@@ -402,6 +402,7 @@ void igt_force_gpu_reset(int drm_fd)
 	igt_sysfs_scanf(dir, "i915_wedged", "%d", &wedged);
 
 	close(dir);
+	errno = 0;
 
 	igt_assert(!wedged);
 }