Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934266AbbHLHMi (ORCPT ); Wed, 12 Aug 2015 03:12:38 -0400 Received: from mail-oi0-f46.google.com ([209.85.218.46]:36537 "EHLO mail-oi0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934246AbbHLHMf (ORCPT ); Wed, 12 Aug 2015 03:12:35 -0400 MIME-Version: 1.0 In-Reply-To: <20150812060052.GA4242@afzalpc> References: <1439353058-10001-1-git-send-email-acourbot@nvidia.com> <20150812060052.GA4242@afzalpc> From: Alexandre Courbot Date: Wed, 12 Aug 2015 16:12:15 +0900 Message-ID: Subject: Re: [PATCH] Revert "drm/nouveau/fifo/gk104: kick channels when deactivating them" To: Afzal Mohammed Cc: Alexandre Courbot , David Airlie , Ben Skeggs , Eric Biggers , "dri-devel@lists.freedesktop.org" , "nouveau@lists.freedesktop.org" , Linux Kernel Mailing List Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1752 Lines: 47 On Wed, Aug 12, 2015 at 3:00 PM, Afzal Mohammed wrote: > Hi, > > On Wed, Aug 12, 2015 at 01:17:38PM +0900, Alexandre Courbot wrote: >> This reverts commit 1addc1264852 >> >> This commit seems to cause crashes in gk104_fifo_intr_runlist() by >> returning 0xbad0da00 when register 0x2a00 is read. Since this commit was >> intended for GM20B which is not completely supported yet, let's revert >> it for the time being. >> >> Reported-by: Eric Biggers >> Signed-off-by: Alexandre Courbot >> --- >> David, it would be great if this could be merged for 4.2 since lots of >> users could potentially experience this issue. Thanks! > > Tested-by: Afzal Mohammed Thanks! > > Please help $subject reach mainline for 4.2, w/o this revert, the > system here hangs most (>90%) of the time at boot time. > > As an aside, yesterday after a marathon git bisect, came to the same > solution (though I don't understand what that change means). Was > about to report it and saw this one. Thanks Alexandre. All credit goes to Eric for bisecting and reporting this issue. > > W/o the revert, in the rare case where it boots, below is observed in > addition to as compared to w/ revert, > > [ 9.826010] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x122130 [ !ENGINE ] Could you let me know what your card is? It may be useful to know the range of affected cards when trying to fix this. Thanks, Alex. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/