From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756926Ab1GKAcv (ORCPT ); Sun, 10 Jul 2011 20:32:51 -0400 Received: from mga02.intel.com ([134.134.136.20]:50019 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756799Ab1GKAcv (ORCPT ); Sun, 10 Jul 2011 20:32:51 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.65,510,1304319600"; d="scan'208";a="24198659" Subject: Re: i915_gem_inactive_shrink fault From: Lin Ming To: "maciej.rutecki@gmail.com" Cc: Keith Packard , lkml In-Reply-To: <201107101710.23262.maciej.rutecki@gmail.com> References: <1309856364.18875.110.camel@minggr.sh.intel.com> <201107101710.23262.maciej.rutecki@gmail.com> Content-Type: text/plain; charset="UTF-8" Date: Mon, 11 Jul 2011 08:39:22 +0800 Message-ID: <1310344762.18875.194.camel@minggr.sh.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2011-07-10 at 23:10 +0800, Maciej Rutecki wrote: > On wtorek, 5 lipca 2011 o 10:59:24 Lin Ming wrote: > > It seems i915 driver loads fail. > > > > mlin@wsm:~$ dmesg |grep -i i915 > > i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > > i915 0000:00:02.0: setting latency timer to 64 > > i915 0000:00:02.0: irq 47 for MSI/MSI-X > > WARNING: at /linux-2.6/drivers/gpu/drm/i915/intel_display.c:826 > > assert_fdi_tx+0xcc/0xd8() [] > > i915_driver_load+0xb12/0x10e9 > > [] i915_pci_probe+0x1b/0x1d > > [] i915_init+0x8b/0x8d > > WARNING: at /linux-2.6/drivers/gpu/drm/i915/intel_display.c:826 > > assert_fdi_tx+0xcc/0xd8() [] > > i915_driver_load+0xb12/0x10e9 > > [] i915_pci_probe+0x1b/0x1d > > [] i915_init+0x8b/0x8d > > [drm:i915_driver_load] *ERROR* failed to init modeset > > i915 0000:00:02.0: PCI INT A disabled > > i915: probe of 0000:00:02.0 failed with error -5 > > [] i915_gem_inactive_shrink+0x2b/0x18d > > > > > > The fault message as below. > > See the attachments for full dmesg, kernel config and lspci output. > > > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000060 > > IP: [] mutex_trylock+0x61/0x131 > > PGD 133cd5067 PUD 134301067 PMD 0 > > Oops: 0002 [#1] SMP > > CPU 3 > > Modules linked in: > > > > Pid: 2322, comm: bash Tainted: G W 3.0.0-rc6-tip-mlin+ #571 Intel > > Older kernels work fine? No, 2.6.39 faults also. Forgot to mention that what I run was "echo 3 > /proc/sys/vm/drop_caches". > > Regards