Only the 'offsets' array was initialized to zero. Since bo_create only sets the handles which are necessary, were we passing garbage data to the kernel when calling drmModeAddFB2 later.
The issue only seems to appear when passing e.g. NV12 data to the kernel, a case where not only handles[0] is used. I therefore also removed the corresponding comment.
Signed-off-by: Tobias Jakobi tjakobi@math.uni-bielefeld.de --- tests/modetest/modetest.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c index 53dfe05..34d86d0 100644 --- a/tests/modetest/modetest.c +++ b/tests/modetest/modetest.c @@ -969,7 +969,7 @@ page_flip_handler(int fd, unsigned int frame, static int set_plane(struct device *dev, struct plane_arg *p) { drmModePlane *ovr; - uint32_t handles[4], pitches[4], offsets[4] = {0}; /* we only use [0] */ + uint32_t handles[4] = {0}, pitches[4] = {0}, offsets[4] = {0}; uint32_t plane_id = 0; struct bo *plane_bo; uint32_t plane_flags = 0;