When i == 0, condition out[i] == i will be true even if a batch supposed to store i in out[i] fails. Don't use 0. Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@xxxxxxxxxxxxxxx> --- tests/i915/gem_exec_fence.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/tests/i915/gem_exec_fence.c b/tests/i915/gem_exec_fence.c index 048870053a..11d99781b0 100644 --- a/tests/i915/gem_exec_fence.c +++ b/tests/i915/gem_exec_fence.c @@ -334,6 +334,8 @@ static void test_fence_await(int fd, const intel_ctx_t *ctx, if (!gem_class_can_store_dword(fd, e2->class)) continue; + i++; + if (flags & NONBLOCK) { igt_store_word(fd, ahnd, ctx, e2, spin->out_fence, scratch, scratch_offset, i, i); @@ -345,8 +347,6 @@ static void test_fence_await(int fd, const intel_ctx_t *ctx, put_ahnd(ahnd); } } - - i++; } igt_spin_busywait_until_started(spin); @@ -356,7 +356,7 @@ static void test_fence_await(int fd, const intel_ctx_t *ctx, if ((flags & HANG) == 0) { /* Check for invalidly completing the task early */ igt_assert(fence_busy(spin->out_fence)); - for (int n = 0; n < i; n++) + for (int n = 1; n <= i; n++) igt_assert_eq_u32(out[n], 0); igt_spin_end(spin); @@ -366,8 +366,11 @@ static void test_fence_await(int fd, const intel_ctx_t *ctx, gem_set_domain(fd, scratch, I915_GEM_DOMAIN_GTT, 0); igt_assert(!fence_busy(spin->out_fence)); - while ((flags & HANG) == 0 && i--) - igt_assert_eq_u32(out[i], i); + if ((flags & HANG) == 0) { + do + igt_assert_eq_u32(out[i], i); + while (--i); + } munmap(out, 4096); igt_spin_free(fd, spin); -- 2.25.1