Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756952Ab1EUB5O (ORCPT ); Fri, 20 May 2011 21:57:14 -0400 Received: from ironport2-out.teksavvy.com ([206.248.154.183]:17489 "EHLO ironport2-out.pppoe.ca" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755850Ab1EUB5M (ORCPT ); Fri, 20 May 2011 21:57:12 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApIBAOAa101Ld/sX/2dsb2JhbAAMhFDVFpB5gSuDZ4EHBJ8i X-IronPort-AV: E=Sophos;i="4.65,245,1304308800"; d="scan'208";a="114381760" Message-ID: <4DD71BF3.5030906@teksavvy.com> Date: Fri, 20 May 2011 21:57:07 -0400 From: Mark Lord User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10 MIME-Version: 1.0 To: Linus Torvalds CC: Linux Kernel Mailing List , Chris Wilson Subject: Re: Linux 2.6.39 -- *ERROR* Attempting to mmap a purgeable buffer References: <4DD5369B.1010601@teksavvy.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2048 Lines: 39 On 11-05-20 06:00 PM, Linus Torvalds wrote: > On Thu, May 19, 2011 at 8:26 AM, Mark Lord wrote: >> >> Just got weird stuff in the syslog this morning from rc7-git12: >> >> [43190.824700] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.827426] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.827506] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.827568] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.828685] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.830498] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.830603] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.831055] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.832580] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer >> [43190.832788] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a purgeable buffer > > Quoting from an earlier mail about this issue from the DRM people: > > "Userspace is attempting to write to/read from a buffer it has > marked as being no longer required, so some rendering is going amiss. > And it does not rule out the possibility that at some point it will > catch the error later and result in a SIGBUS being sent to the > application (probably X). > > However since it is not a kernel error nor is it fatal, that and a > lot of similar messages can be demoted to debug." > > So it's basically user space trying to access something stale, but it > should be harmless. Peachy. I suspect the messages get generated when I run gmplayer or vlc (not sure which, don't really care much either). Thanks. -- 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/