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From: Sven Van Asbroeck <thesven73@gmail.com>
To: Lucas Stach <l.stach@pengutronix.de>
Cc: Philipp Zabel <pza@pengutronix.de>,
	Nicolas Dufresne <nicolas@ndufresne.ca>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Adrian Ratiu <adrian.ratiu@collabora.com>,
	Fabio Estevam <festevam@gmail.com>,
	linux-media <linux-media@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [BUG REPORT] media: coda: mpeg4 decode corruption on i.MX6qp only
Date: Mon, 15 Feb 2021 10:54:25 -0500	[thread overview]
Message-ID: <CAGngYiWxMsko2+6NUt4N0GyBUq4Axz4TRiUrF2ZjNGvZZkTO8A@mail.gmail.com> (raw)
In-Reply-To: <10bfc6f5aaa02ad5858186ccee1894424fc0dd39.camel@pengutronix.de>

Hi Lucas,

On Mon, Feb 15, 2021 at 5:15 AM Lucas Stach <l.stach@pengutronix.de> wrote:
>
> The straight forward way to fix this would be to just disable the PRE
> when the stride is getting too large, which might not work well with
> all userspace requirements, as it effectively disables the ability to
> scan GPU tiled surfaces when the stride is getting too large.

Thank you for your very knowledgeable input, really appreciate it.

I am wondering why I am the first to notice this particular corner
case. Is this perhaps because X+armada plugin allocate a huge bitmap
that fits all displays, and other software frameworks do not? Are
people on i.MX6 mostly using X or Wayland? If Wayland allocates a
separate bitmap for each display, this PRE bug will of course never
show up...

Sven

  reply	other threads:[~2021-02-15 17:09 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-03 16:33 [BUG REPORT] media: coda: mpeg4 decode corruption on i.MX6qp only Sven Van Asbroeck
2021-02-10 16:11 ` Nicolas Dufresne
2021-02-10 18:11   ` Sven Van Asbroeck
2021-02-10 18:29   ` Sven Van Asbroeck
2021-02-11 14:32     ` Philipp Zabel
2021-02-11 15:15       ` Sven Van Asbroeck
2021-02-12 23:52       ` Sven Van Asbroeck
2021-02-15 10:15         ` Lucas Stach
2021-02-15 15:54           ` Sven Van Asbroeck [this message]
2021-02-15 16:10             ` Lucas Stach

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