[Bug 65953] [GM45]igt/module_reload cause <3>[ 159.350832] [drm:drm_mm_takedown] *ERROR* Memory manager not clean. Delaying takedown

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65953

lu hua <huax.lu at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW

--- Comment #9 from lu hua <huax.lu at intel.com> ---
(In reply to comment #8)
> (In reply to comment #7)
> > (In reply to comment #6)
> > > Created attachment 81590 [details] [review] [review] [review]
> > > don't tear down un-initiaizled stolen drm_mm
> > > 
> > > Please test the attached patch, thanks.
> > 
> > It still exists.
> 
> Can you please double-check the patch with the following debug diff applied
> on top (and then attach dmesg afterwards)?
> 
> diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
> index f9d4873..d303e31 100644
> --- a/drivers/gpu/drm/drm_mm.c
> +++ b/drivers/gpu/drm/drm_mm.c
> @@ -699,8 +699,8 @@ void drm_mm_takedown(struct drm_mm * mm)
>  {
>         struct drm_mm_node *entry, *next;
>  
> -       if (!list_empty(&mm->head_node.node_list)) {
> -               DRM_ERROR("Memory manager not clean. Delaying takedown\n");
> +       if (WARN(!list_empty(&mm->head_node.node_list),
> +                "Memory manager not clean. Delaying takedown\n")) {
>                 return;
>         }


Test it. It has <3>[  270.095214] [drm:intel_pipe_config_compare] *ERROR*
mismatch in clock (expected 66285, found 0.
dmesg -r | egrep "<[1-3]>" |grep drm
<3>[  270.095214] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock
(expected 66285, found 0
<3>[  270.173051] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock
(expected 66285, found 0
<3>[  270.182479] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock
(expected 108000, found 0
<3>[  270.281188] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock
(expected 66285, found 0
<3>[  271.283053] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock
(expected 69300, found 0

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