linux-kernel - Re: [PATCH tip/core/rcu 0/55] Torture-test changes for 3.15

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Date:	Mon, 17 Feb 2014 16:41:46 -0800
From:	Josh Triplett <josh@...htriplett.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org,
	laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	darren@...art.com, fweisbec@...il.com, oleg@...hat.com, sbw@....edu
Subject: Re: [PATCH tip/core/rcu 0/55] Torture-test changes for 3.15

On Mon, Feb 17, 2014 at 02:12:31PM -0800, Paul E. McKenney wrote:
> Hello!
> 
> This series contains rcutorture changes, including adding a simple
> locktorture.  Creating this locktorture while sharing the rcutorture
> infrastructure was the main point of this patch, but this effort
> uncovered a number of shortcomings in rcutorture, which this series
> also fixes.
> 
> 1-6.	Usability improvements in rcutorture scripting.
> 
> 7-13.	Enable concurrent rcutorture runs on systems with sufficient
> 	numbers of CPUs.
> 
> 14.	Print the results directory at the end of the test.
> 
> 15,17-25,27-28,30,32,37-41,46-48.
> 	Abstract facilities from rcutorture module and scripting for later
> 	use by locktorture.
> 
> 16.	Don't create a results directory for dryruns.
> 
> 26.	Print date and time of each phase of torturing.
> 
> 29.	Issue a diagnostic if something does a system shutdown while
> 	rcutorture is running.
> 
> 31.	Apply ACCESS_ONCE() to racy fullstop accesses.
> 
> 33.	Clean up rcu_torture_init() error handling.
> 
> 34.	Announce kthread creation.
> 
> 35.	Clean up a number of rcutorture shutdown races, unifying the
> 	required shutdown actions into a new torture_kthread_stopping()
> 	function.
> 
> 36.	Add a missing return statement in rcu_torture_barrier_init().
> 
> 42.	Create a minimal locktorture module.
> 
> 43-44.	Add an on-purpose buggy RCU implementation to rcutorture to help
> 	test the tests.
> 
> 45.	Create a file for Kconfig parameters that are commmon across all
> 	rcutorture tests.
> 
> 49.	Add beginning set of config files for locktorture.
> 
> 50.	Avoid SEGV when cleanup-hooks function pointer is NULL.
> 
> 51.	Add locktorture plugin for kvm_recheck.sh.
> 
> 52.	Rename TREE_RCU-Kconfig.txt to avoid confusing scripts that
> 	look for Kconfig files, courtesy of Paul Bolle.
> 
> 53.	Retain output from kvm-test-1-run.sh script.
> 
> 54.	Add an on-purpose buggy lock implementation to locktorture to
> 	help test the tests.
> 
> 55.	Save kvm.sh progress messages to log so that they can be used
> 	for later timing analysis.

I replied with comments on 15, 17, 19, 21, 35, and 37.

This series also appears to be missing patches numbered 12, 16, 18, 26,
38, 39, 43, and 53.  (In some cases those patch numbers appear above but
the corresponding patches don't appear in subsequent mails; in other
cases those numbers appear missing above as well.)

For the remaining patches:
Reviewed-by: Josh Triplett <josh@...htriplett.org>
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