DRM_EVENT_CONTEXT_VERSION is the latest context version supported by whatever version of libdrm is present. igt was blindly asserting it supported whatever version that may be, even if it actually didn't.
With libdrm 2.4.78, setting a higher context version than 2 will attempt to call the page_flip_handler2 vfunc if it was non-NULL, which being a random chunk of stack memory, it might well have been. Set the version as 2, which should be bumped only with the appropriate version checks. Signed-off-by: Daniel Stone <[email protected]> --- hw/xfree86/drivers/modesetting/vblank.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/xfree86/drivers/modesetting/vblank.c b/hw/xfree86/drivers/modesetting/vblank.c index 04a895269..8682f4d91 100644 --- a/hw/xfree86/drivers/modesetting/vblank.c +++ b/hw/xfree86/drivers/modesetting/vblank.c @@ -402,7 +402,7 @@ ms_vblank_screen_init(ScreenPtr screen) modesettingEntPtr ms_ent = ms_ent_priv(scrn); xorg_list_init(&ms_drm_queue); - ms->event_context.version = DRM_EVENT_CONTEXT_VERSION; + ms->event_context.version = 2; ms->event_context.vblank_handler = ms_drm_handler; ms->event_context.page_flip_handler = ms_drm_handler; -- 2.12.2 _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
