From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
To: "Daniel Vetter" <daniel@ffwll.ch>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>,
dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH] drm/core: Do not call drm_framebuffer_remove internally during teardown.
Date: Wed, 9 Sep 2015 16:33:33 +0200 [thread overview]
Message-ID: <55F0433D.4050007@linux.intel.com> (raw)
In-Reply-To: <CAKMK7uHSgQsOfURFTq0kv2k3+rMPPSDjxk03MLRrR230Lwuk0Q@mail.gmail.com>
Op 09-09-15 om 13:59 schreef Daniel Vetter:
> On Wed, Sep 9, 2015 at 1:51 PM, Ville Syrjälä
> <ville.syrjala@linux.intel.com> wrote:
>> On Wed, Sep 09, 2015 at 01:46:21PM +0200, Maarten Lankhorst wrote:
>>> This may cause issues because encoders are already destroyed so removing
>>> active primaries may use freed memory. Instead free the fb directly,
>>> ignoring refcount.
>> So what about fixing the cause, not the symptom? That is remove
>> framebuffers before nuking crtc/encoders/etc.
> Also by that point we shouldn't have any framebuffers left (the
> WARN_ON is for that), so not sure what's the point of this patch.
> -Daniel
Yes, but the current way would crash on atomic because encoders are already done. This removes a caller of drm_framebuffer_remove and uses the correct destroy function regardless even when refcounts are leaked. :)
~Maarten
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next prev parent reply other threads:[~2015-09-09 14:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-09 11:46 [PATCH] drm/core: Do not call drm_framebuffer_remove internally during teardown Maarten Lankhorst
2015-09-09 11:51 ` [Intel-gfx] " Ville Syrjälä
2015-09-09 11:59 ` Daniel Vetter
2015-09-09 14:33 ` Maarten Lankhorst [this message]
2015-09-09 14:48 ` [Intel-gfx] " Daniel Vetter
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