From: Greg Kroah-Hartman <greg@kroah.com>
To: Joel Fernandes <agnel.joel@gmail.com>
Cc: linux-rt-users@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
kernelnewbies <kernelnewbies@nl.linux.org>,
Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: RFC on fixing mutex spinning on owner
Date: Wed, 16 Mar 2016 16:35:30 -0700 [thread overview]
Message-ID: <20160316233530.GA8731@kroah.com> (raw)
In-Reply-To: <CAD=GYpbHjcsuQSnNPL4SCv-r=Me6oiH7dJ98a64udbakWLaUjQ@mail.gmail.com>
On Wed, Mar 16, 2016 at 04:22:17PM -0700, Joel Fernandes wrote:
> Hi,
>
> On a fairly recent kernel and android userspace, I am seeing that with
> i915 driver is in a spin loop waiting for mutex owner to release it
> (mutex_spin_on_owner).
Why not provide a backtrace to the drm and i915 developers so that they
can work on this? The mailing lists you sent this to can't do much
about this, sorry...
thanks,
greg k-h
next prev parent reply other threads:[~2016-03-16 23:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-16 23:22 RFC on fixing mutex spinning on owner Joel Fernandes
2016-03-16 23:35 ` Greg Kroah-Hartman [this message]
2016-03-16 23:38 ` Joel Fernandes
2016-03-17 2:17 ` Steven Rostedt
2016-03-17 5:35 ` Joel Fernandes
2016-03-17 12:08 ` Steven Rostedt
2016-03-17 7:36 ` Peter Zijlstra
2016-03-17 8:05 ` Nicholas Mc Guire
2016-03-17 10:18 ` Peter Zijlstra
2016-03-17 11:16 ` Thomas Gleixner
2016-03-17 12:06 ` Steven Rostedt
2016-03-17 12:13 ` Peter Zijlstra
2016-03-17 13:32 ` Thomas Gleixner
2016-03-17 15:36 ` Nicholas Mc Guire
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