From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergey Senozhatsky Subject: RPM wakelock ref not held during HW access Date: Wed, 13 Jan 2016 00:06:07 +0900 Message-ID: <20160112150607.GB670@swordfish> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Imre Deak Cc: David Airlie , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter List-Id: dri-devel@lists.freedesktop.org SGVsbG8sCgotbW1vdHMgNC40LjAtbW0xLWRiZy0wMDYwMi1nNzc2YmQwOQoKClsgNTMzMS41MDkw ODddIFdBUk5JTkc6IENQVTogMCBQSUQ6IDM1OSBhdCBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRl bF9kcnYuaDoxNDQ2IGdlbjZfcmVhZDMyKzB4N2IvMHgyNTMgW2k5MTVdKCkKWyA1MzMxLjUwOTA5 MV0gUlBNIHdha2Vsb2NrIHJlZiBub3QgaGVsZCBkdXJpbmcgSFcgYWNjZXNzClsgNTMzMS41MDkw OTNdIE1vZHVsZXMgbGlua2VkIGluOgpbIDUzMzEuNTA5MTgyXSBDUFU6IDAgUElEOiAzNTkgQ29t bTogWG9yZyBOb3QgdGFpbnRlZCA0LjQuMC1tbTEtZGJnLTAwNjAyLWc3NzZiZDA5LWRpcnR5ICMz NApbIDUzMzEuNTA5MTg2XSAgMDAwMDAwMDAwMDAwMDAwMCBmZmZmODgwNDFiZGRmYWMwIGZmZmZm ZmZmODExZWI4NjAgZmZmZjg4MDQxYmRkZmIwOApbIDUzMzEuNTA5MTk0XSAgZmZmZjg4MDQxYmRk ZmFmOCBmZmZmZmZmZjgxMDQwZmMyIGZmZmZmZmZmYTA1NDQyYTkgZmZmZjg4MDQxYWFiMDAwMApb IDUzMzEuNTA5MjAwXSAgMDAwMDAwMDAwMDA2NDAwMCBmZmZmODgwNDFhZmNiMDAxIDAwMDAwMDAw MDAwMDAwMDEgZmZmZjg4MDQxYmRkZmI2MApbIDUzMzEuNTA5MjA3XSBDYWxsIFRyYWNlOgpbIDUz MzEuNTA5MjE4XSAgWzxmZmZmZmZmZjgxMWViODYwPl0gZHVtcF9zdGFjaysweDRiLzB4NjMKWyA1 MzMxLjUwOTIyN10gIFs8ZmZmZmZmZmY4MTA0MGZjMj5dIHdhcm5fc2xvd3BhdGhfY29tbW9uKzB4 OTkvMHhiMgpbIDUzMzEuNTA5Mjc3XSAgWzxmZmZmZmZmZmEwNTQ0MmE5Pl0gPyBnZW42X3JlYWQz MisweDdiLzB4MjUzIFtpOTE1XQpbIDUzMzEuNTA5MjgzXSAgWzxmZmZmZmZmZjgxMDQxMDIzPl0g d2Fybl9zbG93cGF0aF9mbXQrMHg0OC8weDUwClsgNTMzMS41MDkzMzFdICBbPGZmZmZmZmZmYTA1 NDQyYTk+XSBnZW42X3JlYWQzMisweDdiLzB4MjUzIFtpOTE1XQpbIDUzMzEuNTA5MzM4XSAgWzxm ZmZmZmZmZjgxM2I4ZmY2Pl0gPyBtdXRleF91bmxvY2srMHhlLzB4MTAKWyA1MzMxLjUwOTM5MV0g IFs8ZmZmZmZmZmZhMDU3YWUwND5dIGludGVsX2RkaV9nZXRfaHdfc3RhdGUrMHg1ZS8weDE1OSBb aTkxNV0KWyA1MzMxLjUwOTQ0M10gIFs8ZmZmZmZmZmZhMDU3Y2RkOD5dIGludGVsX2RkaV9jb25u ZWN0b3JfZ2V0X2h3X3N0YXRlKzB4NWMvMHhkZiBbaTkxNV0KWyA1MzMxLjUwOTQ5NF0gIFs8ZmZm ZmZmZmZhMDU2MTM0Yj5dIGludGVsX2F0b21pY19jb21taXQrMHg4ZTAvMHgxMjUwIFtpOTE1XQpb IDUzMzEuNTA5NTI4XSAgWzxmZmZmZmZmZmEwM2Y3YWNiPl0gPyBkcm1fYXRvbWljX2NoZWNrX29u bHkrMHgyOTMvMHg1NjQgW2RybV0KWyA1MzMxLjUwOTU1OF0gIFs8ZmZmZmZmZmZhMDNmN2RlOT5d IGRybV9hdG9taWNfY29tbWl0KzB4NGQvMHg1MiBbZHJtXQpbIDUzMzEuNTA5NTcyXSAgWzxmZmZm ZmZmZmEwNGUxOTNlPl0gZHJtX2F0b21pY19oZWxwZXJfY29ubmVjdG9yX2RwbXMrMHgxMTYvMHgx N2UgW2RybV9rbXNfaGVscGVyXQpbIDUzMzEuNTA5NTk5XSAgWzxmZmZmZmZmZmEwM2VlNTZjPl0g ZHJtX21vZGVfb2JqX3NldF9wcm9wZXJ0eV9pb2N0bCsweGVmLzB4MTdhIFtkcm1dClsgNTMzMS41 MDk2MjZdICBbPGZmZmZmZmZmYTAzZWU2Mjc+XSBkcm1fbW9kZV9jb25uZWN0b3JfcHJvcGVydHlf c2V0X2lvY3RsKzB4MzAvMHgzMiBbZHJtXQpbIDUzMzEuNTA5NjQyXSAgWzxmZmZmZmZmZmEwM2Ux MGNiPl0gZHJtX2lvY3RsKzB4MjZkLzB4M2E4IFtkcm1dClsgNTMzMS41MDk2NjhdICBbPGZmZmZm ZmZmYTAzZWU1Zjc+XSA/IGRybV9tb2RlX29ial9zZXRfcHJvcGVydHlfaW9jdGwrMHgxN2EvMHgx N2EgW2RybV0KWyA1MzMxLjUwOTY3NV0gIFs8ZmZmZmZmZmY4MTA4MWM0Mj5dID8gbG9ja19hY3F1 aXJlKzB4MTAxLzB4MTg4ClsgNTMzMS41MDk2ODFdICBbPGZmZmZmZmZmODExNjU1NDM+XSA/IF9f ZmdldCsweDUvMHgxOWQKWyA1MzMxLjUwOTY4NV0gIFs8ZmZmZmZmZmY4MTA3ZDU5YT5dID8gX19s b2NrX2lzX2hlbGQrMHgzYy8weDU3ClsgNTMzMS41MDk2OTFdICBbPGZmZmZmZmZmODExNWFlNjA+ XSB2ZnNfaW9jdGwrMHgxOC8weDM0ClsgNTMzMS41MDk2OTVdICBbPGZmZmZmZmZmODExNWI0ODk+ XSBkb192ZnNfaW9jdGwrMHg1NzIvMHg1ZjEKWyA1MzMxLjUwOTY5OV0gIFs8ZmZmZmZmZmY4MTE2 NTc2ND5dID8gX19mZ2V0X2xpZ2h0KzB4NjIvMHg3MQpbIDUzMzEuNTA5NzA0XSAgWzxmZmZmZmZm ZjgxMTViNTRiPl0gU3lTX2lvY3RsKzB4NDMvMHg2MQpbIDUzMzEuNTA5NzExXSAgWzxmZmZmZmZm ZjgxM2JiMDE3Pl0gZW50cnlfU1lTQ0FMTF82NF9mYXN0cGF0aCsweDEyLzB4NmYKWyA1MzMxLjUw OTcxNV0gLS0tWyBlbmQgdHJhY2UgNzBkNGZkODZhMDM5NWQ5MiBdLS0tCgoJLXNzCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5n IGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762711AbcALPHw (ORCPT ); Tue, 12 Jan 2016 10:07:52 -0500 Received: from mail-pa0-f41.google.com ([209.85.220.41]:33350 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762697AbcALPHu (ORCPT ); Tue, 12 Jan 2016 10:07:50 -0500 Date: Wed, 13 Jan 2016 00:06:07 +0900 From: Sergey Senozhatsky To: Imre Deak Cc: Daniel Vetter , David Airlie , Chris Wilson , Joonas Lahtinen , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: RPM wakelock ref not held during HW access Message-ID: <20160112150607.GB670@swordfish> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 Hello, -mmots 4.4.0-mm1-dbg-00602-g776bd09 [ 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