From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 62541] Kernel oops/panic during system boot with systemd - "Unable to handle kernel NULL pointer dereference" Date: Sat, 05 Oct 2013 08:14:45 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by gabe.freedesktop.org (Postfix) with ESMTP id CDF94E5C78 for ; Sat, 5 Oct 2013 01:14:47 -0700 (PDT) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4C06F20270 for ; Sat, 5 Oct 2013 08:14:46 +0000 (UTC) Received: from bugzilla2.web.kernel.org (bugzilla2.web.kernel.org [172.20.200.52]) by mail.kernel.org (Postfix) with ESMTP id 635F020253 for ; Sat, 5 Oct 2013 08:14:45 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org https://bugzilla.kernel.org/show_bug.cgi?id=62541 --- Comment #1 from Adrian Byszuk --- OK, I was able to track down the problem more precisely. In my rc.local I have: echo OFF > /sys/kernel/debug/vgaswitcheroo/switch for switching discrete graphics after boot. With this line booting fails. But when I change it to: sleep 5 echo OFF > /sys/kernel/debug/vgaswitcheroo/switch kernel is booting just fine. So I think the problem is that systemd is, unlike the old init, executing rc.local just in the beginning which switches discrete graphics just in the beginning of system startup. -- You are receiving this mail because: You are watching the assignee of the bug.