From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755425AbdEOEUJ (ORCPT ); Mon, 15 May 2017 00:20:09 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:59292 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750838AbdEOEUI (ORCPT ); Mon, 15 May 2017 00:20:08 -0400 From: Gabriel Krisman Bertazi To: Mike Galbraith Cc: LKML , Dave Airlie , Gerd Hoffmann , dri-devel@lists.freedesktop.org Subject: Re: [drm:qxl] BUG: sleeping function called from invalid context - qxl_bo_kmap_atomic_page()...splat Organization: Collabora References: <1494239599.11523.21.camel@gmx.de> <87mvan9ljx.fsf@dilma.collabora.co.uk> <1494297462.20252.9.camel@gmx.de> <1494523443.25131.12.camel@gmx.de> Date: Mon, 15 May 2017 01:20:01 -0300 In-Reply-To: <1494523443.25131.12.camel@gmx.de> (Mike Galbraith's message of "Thu, 11 May 2017 19:24:03 +0200") Message-ID: <87shk6da4u.fsf@dilma.collabora.co.uk> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Mike Galbraith writes: > On Tue, 2017-05-09 at 04:37 +0200, Mike Galbraith wrote: >> On Mon, 2017-05-08 at 16:48 -0300, Gabriel Krisman Bertazi wrote: >> >> > Thanks for reporting this. Can you confirm the following patch prevents >> > the issue? >> >> Nope, it still gripes. > > The reason for this gripe is that we find that we don't have memory > reserved.. a tad too late. > Thanks for the info. Sorry I wasn't able to get back to this last week. I'll try to get another patch for -rc2. > Xorg-2252 [000] .... 135.409756: qxl_release_map <-qxl_cursor_atomic_update > Xorg-2252 [000] .... 135.409756: qxl_bo_kmap_atomic_page <-qxl_release_map > Xorg-2252 [000] .... 135.409757: qxl_bo_kmap_atomic_page: ENTER > Xorg-2252 [000] .... 135.409757: ttm_mem_io_lock <-qxl_bo_kmap_atomic_page > Xorg-2252 [000] .... 135.409757: ttm_mem_io_reserve <-qxl_bo_kmap_atomic_page > Xorg-2252 [000] .... 135.409757: qxl_ttm_io_mem_reserve <-ttm_mem_io_reserve > Xorg-2252 [000] .... 135.409757: ttm_mem_io_unlock <-qxl_bo_kmap_atomic_page > Xorg-2252 [000] .... 135.409757: qxl_bo_kmap_atomic_page: PREEMPTION DISABLED > Xorg-2252 [000] ...1 135.409758: qxl_bo_kmap <-qxl_cursor_atomic_update > Xorg-2252 [000] ...1 135.409758: ttm_bo_kmap <-qxl_bo_kmap <== too late > Xorg-2252 [000] ...1 135.409758: ttm_mem_io_reserve <-ttm_bo_kmap > Xorg-2252 [000] ...1 135.409758: qxl_ttm_io_mem_reserve <-ttm_mem_io_reserve > Xorg-2252 [000] ...1 135.409759: ioremap_nocache <-ttm_bo_kmap <== game over > Xorg-2252 [000] ...1 135.409759: __ioremap_caller <-ioremap_nocache > Xorg-2252 [000] ...1 135.409759: walk_system_ram_range <-__ioremap_caller > Xorg-2252 [000] ...1 135.409759: find_next_iomem_res <-walk_system_ram_range > Xorg-2252 [000] ...1 135.409759: _raw_read_lock <-find_next_iomem_res > Xorg-2252 [000] ...1 135.409760: reserve_memtype <-__ioremap_caller > Xorg-2252 [000] ...1 135.409760: pat_pagerange_is_ram <-reserve_memtype > Xorg-2252 [000] ...1 135.409761: walk_system_ram_range <-pat_pagerange_is_ram > Xorg-2252 [000] ...1 135.409761: find_next_iomem_res <-walk_system_ram_range > Xorg-2252 [000] ...1 135.409761: _raw_read_lock <-find_next_iomem_res > Xorg-2252 [000] ...1 135.409761: kmem_cache_alloc_trace <-reserve_memtype > Xorg-2252 [000] ...1 135.409761: __might_sleep <-kmem_cache_alloc_trace > Xorg-2252 [000] ...1 135.409762: ___might_sleep <-__might_sleep -- Gabriel Krisman Bertazi