On Wed, 9 Feb 2011 00:27:52 +0000, Pedro Ribeiro <[email protected]> wrote: > Hi, > > I've been having unreliable operation when hibernating ever since 2.6.37-rc5 > (the first 2.6.37 I tried). > With 2.6.36 I never had a problem.
Wrong, you just never saw it. commit 9334ef755f060e251f3f395caeda1a58b6834ea3 Author: Chris Wilson <[email protected]> Date: Fri Jan 28 11:53:03 2011 +0000 drm: Don't switch fb when disabling an output In drm_crtc_helper_set_config, we call drm_crtc_helper_set_mode which may return early and do no operation if the crtc is to be disabled. In this case we merrily swap to the new fb, discarding the old_fb believing that it has been cleaned up. However, due to the early return, the old_fb was not presented to the backend for correct reaping, and nor was the new one - which is about to be reaped via the drm_helper_disable_unused_functions(), leading to incorrect refcounting of the pinned objects. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=27722 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29857 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29230 Tested-by: Takashi Iwai <[email protected]> Signed-off-by: Chris Wilson <[email protected]> -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
