From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 92005] Linux 4.2 DisplayPort MST deadlock? Date: Sun, 27 Sep 2015 03:19:15 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1658284957==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id E98946E944 for ; Sat, 26 Sep 2015 20:19:14 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1658284957== Content-Type: multipart/alternative; boundary="1443323954.18b6dA0.7045"; charset="UTF-8" --1443323954.18b6dA0.7045 Date: Sun, 27 Sep 2015 03:19:14 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=92005 --- Comment #4 from Adam J. Richter --- Hi, Dave. I have tried the patch you attached to this bug report on 2015-09-16 on a couple of different systems with Linux 4.3-rc2, and confirm that I have so far not seen any DP-MST related kernel null pointer dereferences. I do see such oopses on Linux-4.3-rc2 without your patch. So, I would encourage you to send it or something similar upstream if you have not done so already. By the way, just to warn you that not everything is perfect, I still see apparently invalid video from one of two DP-MST hubs that I have been using with 4.3-rc2 + your patch, but that is outside the scope of this freedesktop.org bug report. So, I expect to test a little more and close this bug as "resolved" once your patch or the equivalent appears in a mainline Linux release candidate. Thank you very much for your help! -- You are receiving this mail because: You are the assignee for the bug. --1443323954.18b6dA0.7045 Date: Sun, 27 Sep 2015 03:19:14 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 4 on bug 92005 from 
Hi, Dave.

I have tried the patch you attached to this bug report on 2015-09-16 on a
couple of different systems with Linux 4.3-rc2, and confirm that I have so far
not seen any DP-MST related kernel null pointer dereferences.  I do see such
oopses on Linux-4.3-rc2 without your patch.  So, I would encourage you to send
it or something similar upstream if you have not done so already.

By the way, just to warn you that not everything is perfect, I still see
apparently invalid video from one of two DP-MST hubs that I have been using
with 4.3-rc2 + your patch, but that is outside the scope of this
freedesktop.org bug report.  So, I expect to test a little more and close this
bug as "resolved" once your patch or the equivalent appears in a mainline Linux
release candidate.

Thank you very much for your help!

You are receiving this mail because:
  • You are the assignee for the bug.
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