From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 105190] gem_quiescent_gpu assertion fails on distribution kernels Date: Wed, 21 Feb 2018 13:43:11 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1059544481==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 4B0AD6E08E for ; Wed, 21 Feb 2018 13:43:11 +0000 (UTC) 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 --===============1059544481== Content-Type: multipart/alternative; boundary="15192205910.3fcBB.7197" Content-Transfer-Encoding: 7bit --15192205910.3fcBB.7197 Date: Wed, 21 Feb 2018 13:43:11 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D105190 arkadiusz.hiler@intel.com changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |NOTABUG Status|NEW |RESOLVED --- Comment #8 from arkadiusz.hiler@intel.com -= -- Looks like it's caused by Fedora's customization. They picked up kernel lockdown series https://lwn.net/Articles/723653/ If the system is booted using secure boot it puts the kernel in lockdown mo= de, which includes disabling all the DebugFSes. To enable it you have to lift the lockdown: # sysctl kernel.sysrq=3D1 on a physical keyboard; writing to /proc/sysrq-trigger does n= ot work [ 137.276888] sysrq: SysRq : Disabling Secure Boot restrictions [ 137.276963] Lifting lockdown --=20 You are receiving this mail because: You are the assignee for the bug.= --15192205910.3fcBB.7197 Date: Wed, 21 Feb 2018 13:43:11 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated arkadiusz.hiler@intel.com<= /span> changed bug 10519= 0
What Removed Added
Resolution --- NOTABUG
Status NEW RESOLVED

Commen= t # 8 on bug 10519= 0 from arkadiusz.hiler@i= ntel.com 
Looks like it's caused by Fedora's customization. They picked =
up kernel
lockdown series https://lwn.ne=
t/Articles/723653/

If the system is booted using secure boot it puts the kernel in lockdown mo=
de,
which includes disabling all the DebugFSes.

To enable it you have to lift the lockdown:

# sysctl kernel.sysrq=3D1
<Alt-PrtSc-x> on a physical keyboard; writing to /proc/sysrq-trigger =
does not
work
[  137.276888] sysrq: SysRq : Disabling Secure Boot restrictions
[  137.276963] Lifting lockdown

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