Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933717AbbHLGBF (ORCPT ); Wed, 12 Aug 2015 02:01:05 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:33133 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933504AbbHLGBD (ORCPT ); Wed, 12 Aug 2015 02:01:03 -0400 Date: Wed, 12 Aug 2015 11:30:52 +0530 From: Afzal Mohammed To: Alexandre Courbot Cc: David Airlie , Ben Skeggs , Eric Biggers , dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, gnurou@gmail.com Subject: Re: [PATCH] Revert "drm/nouveau/fifo/gk104: kick channels when deactivating them" Message-ID: <20150812060052.GA4242@afzalpc> References: <1439353058-10001-1-git-send-email-acourbot@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1439353058-10001-1-git-send-email-acourbot@nvidia.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1437 Lines: 37 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 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. 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 ] Regards Afzal -- 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/