From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 84627] (bisected) 32bit corruption with PIPE_USAGE_STREAM reverted Date: Wed, 26 Nov 2014 02:52:41 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0467662894==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id B1E4F6E505 for ; Tue, 25 Nov 2014 18:52:41 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0467662894== Content-Type: multipart/alternative; boundary="1416970361.efc6d53.6272"; charset="UTF-8" --1416970361.efc6d53.6272 Date: Wed, 26 Nov 2014 02:52:41 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable https://bugs.freedesktop.org/show_bug.cgi?id=3D84627 --- Comment #31 from Michel D=C3=A4nzer --- (In reply to Zbigniew Luszpinski from comment #30) > Just apply only one of these solutions. I prefer to add my GPU to exclusi= on > list "drm/radeon: Ignore RADEON_GEM_GTT_WC on Kabini" patch instead of > patching mesa. While that patch works around the problem, it doesn't make much sense conceptually: Since everything is working fine with 64-bit kernels, there doesn't seem to be anything wrong with any particular GPUs. Also, disabling write-combining decreases performance. For those reasons, until someone figures out the root cause of this problem, IMHO the preferred workaround is to run a 64-bit kernel. Any particular rea= son why you can't do that? --=20 You are receiving this mail because: You are the assignee for the bug. --1416970361.efc6d53.6272 Date: Wed, 26 Nov 2014 02:52:41 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Commen= t # 31 on bug 84627<= /a> from Michel D=C3=A4nzer 
(In reply to Zbigniew Luszpinski from comment #30)
> Just apply only one of these solutions. I prefer=
 to add my GPU to exclusion
> list "drm/radeon: Ignore RADEON_GEM_GTT_WC on Kabini" patch =
instead of
> patching mesa.

While that patch works around the problem, it doesn't make much sense
conceptually: Since everything is working fine with 64-bit kernels, there
doesn't seem to be anything wrong with any particular GPUs.

Also, disabling write-combining decreases performance.

For those reasons, until someone figures out the root cause of this problem,
IMHO the preferred workaround is to run a 64-bit kernel. Any particular rea=
son
why you can't do that?

You are receiving this mail because: =20=20=20=20=20=20
  • You are the assignee for the bug.
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