From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753217AbcALPcx (ORCPT ); Tue, 12 Jan 2016 10:32:53 -0500 Received: from mail-wm0-f41.google.com ([74.125.82.41]:35796 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752245AbcALPcv (ORCPT ); Tue, 12 Jan 2016 10:32:51 -0500 Date: Tue, 12 Jan 2016 16:32:52 +0100 From: Daniel Vetter To: Sergey Senozhatsky Cc: Imre Deak , David Airlie , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter Subject: Re: [Intel-gfx] RPM wakelock ref not held during HW access Message-ID: <20160112153252.GC19130@phenom.ffwll.local> Mail-Followup-To: Sergey Senozhatsky , Imre Deak , David Airlie , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter References: <20160112150607.GB670@swordfish> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160112150607.GB670@swordfish> X-Operating-System: Linux phenom 4.3.0-1-amd64 User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 13, 2016 at 12:06:07AM +0900, Sergey Senozhatsky wrote: > Hello, > > -mmots 4.4.0-mm1-dbg-00602-g776bd09 Patch to shut this up (rpm is disabled by default for a reason still) on it's way into 4.5/-next. Thanks anyway for the report. -Daniel > > > [ 5331.509087] WARNING: CPU: 0 PID: 359 at drivers/gpu/drm/i915/intel_drv.h:1446 gen6_read32+0x7b/0x253 [i915]() > [ 5331.509091] RPM wakelock ref not held during HW access > [ 5331.509093] Modules linked in: > [ 5331.509182] CPU: 0 PID: 359 Comm: Xorg Not tainted 4.4.0-mm1-dbg-00602-g776bd09-dirty #34 > [ 5331.509186] 0000000000000000 ffff88041bddfac0 ffffffff811eb860 ffff88041bddfb08 > [ 5331.509194] ffff88041bddfaf8 ffffffff81040fc2 ffffffffa05442a9 ffff88041aab0000 > [ 5331.509200] 0000000000064000 ffff88041afcb001 0000000000000001 ffff88041bddfb60 > [ 5331.509207] Call Trace: > [ 5331.509218] [] dump_stack+0x4b/0x63 > [ 5331.509227] [] warn_slowpath_common+0x99/0xb2 > [ 5331.509277] [] ? gen6_read32+0x7b/0x253 [i915] > [ 5331.509283] [] warn_slowpath_fmt+0x48/0x50 > [ 5331.509331] [] gen6_read32+0x7b/0x253 [i915] > [ 5331.509338] [] ? mutex_unlock+0xe/0x10 > [ 5331.509391] [] intel_ddi_get_hw_state+0x5e/0x159 [i915] > [ 5331.509443] [] intel_ddi_connector_get_hw_state+0x5c/0xdf [i915] > [ 5331.509494] [] intel_atomic_commit+0x8e0/0x1250 [i915] > [ 5331.509528] [] ? drm_atomic_check_only+0x293/0x564 [drm] > [ 5331.509558] [] drm_atomic_commit+0x4d/0x52 [drm] > [ 5331.509572] [] drm_atomic_helper_connector_dpms+0x116/0x17e [drm_kms_helper] > [ 5331.509599] [] drm_mode_obj_set_property_ioctl+0xef/0x17a [drm] > [ 5331.509626] [] drm_mode_connector_property_set_ioctl+0x30/0x32 [drm] > [ 5331.509642] [] drm_ioctl+0x26d/0x3a8 [drm] > [ 5331.509668] [] ? drm_mode_obj_set_property_ioctl+0x17a/0x17a [drm] > [ 5331.509675] [] ? lock_acquire+0x101/0x188 > [ 5331.509681] [] ? __fget+0x5/0x19d > [ 5331.509685] [] ? __lock_is_held+0x3c/0x57 > [ 5331.509691] [] vfs_ioctl+0x18/0x34 > [ 5331.509695] [] do_vfs_ioctl+0x572/0x5f1 > [ 5331.509699] [] ? __fget_light+0x62/0x71 > [ 5331.509704] [] SyS_ioctl+0x43/0x61 > [ 5331.509711] [] entry_SYSCALL_64_fastpath+0x12/0x6f > [ 5331.509715] ---[ end trace 70d4fd86a0395d92 ]--- > > -ss > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch