From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759996Ab3B1PDD (ORCPT ); Thu, 28 Feb 2013 10:03:03 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:42363 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932490Ab3B1Oto (ORCPT ); Thu, 28 Feb 2013 09:49:44 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Dave Airlie , Luis Henriques Subject: [PATCH 095/139] drm/udl: disable fb_defio by default Date: Thu, 28 Feb 2013 14:44:05 +0000 Message-Id: <1362062689-2567-96-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1362062689-2567-1-git-send-email-luis.henriques@canonical.com> References: <1362062689-2567-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.5.7.7 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Dave Airlie commit 677d23b70bf949f75746c80cbae92c233c6b5e2a upstream. There seems to be a bad interaction between gem/shmem and defio on top, I get list corruption on the page lru in the shmem code. Turn it off for now until we get some more digging done. Signed-off-by: Dave Airlie Signed-off-by: Luis Henriques --- drivers/gpu/drm/udl/udl_fb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index adbf85e..c9df873 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -22,9 +22,9 @@ #include "drm_fb_helper.h" -#define DL_DEFIO_WRITE_DELAY 5 /* fb_deferred_io.delay in jiffies */ +#define DL_DEFIO_WRITE_DELAY (HZ/20) /* fb_deferred_io.delay in jiffies */ -static int fb_defio = 1; /* Optionally enable experimental fb_defio mmap support */ +static int fb_defio = 0; /* Optionally enable experimental fb_defio mmap support */ static int fb_bpp = 16; module_param(fb_bpp, int, S_IWUSR | S_IRUSR | S_IWGRP | S_IRGRP); -- 1.8.1.2