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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 105190] gem_quiescent_gpu assertion fails on distribution kernels
Date: Wed, 21 Feb 2018 13:43:11 +0000	[thread overview]
Message-ID: <bug-105190-502-0ZWiC9oxGA@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-105190-502@http.bugs.freedesktop.org/>


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https://bugs.freedesktop.org/show_bug.cgi?id=105190

arkadiusz.hiler@intel.com <arkadiusz.hiler@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |NOTABUG
             Status|NEW                         |RESOLVED

--- Comment #8 from arkadiusz.hiler@intel.com <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 mode,
which includes disabling all the DebugFSes.

To enable it you have to lift the lockdown:

# sysctl kernel.sysrq=1
<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

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  parent reply	other threads:[~2018-02-21 13:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-21 12:23 [Bug 105190] gem_quiescent_gpu assertion fails on distribution kernels bugzilla-daemon
2018-02-21 12:27 ` bugzilla-daemon
2018-02-21 12:36 ` bugzilla-daemon
2018-02-21 12:42 ` bugzilla-daemon
2018-02-21 12:44 ` bugzilla-daemon
2018-02-21 12:46 ` bugzilla-daemon
2018-02-21 12:53 ` bugzilla-daemon
2018-02-21 13:08 ` bugzilla-daemon
2018-02-21 13:43 ` bugzilla-daemon [this message]
2018-10-11 19:44 ` bugzilla-daemon
2019-07-04  7:47 ` bugzilla-daemon

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