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From: Gratian Crisan <gratian.crisan@ni.com>
To: Julia Cartwright <julia@ni.com>
Cc: Gratian Crisan <gratian.crisan@ni.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org, Darren Hart <dvhart@infradead.org>,
	Ingo Molnar <mingo@redhat.com>
Subject: Re: PI futexes + lock stealing woes
Date: Thu, 07 Dec 2017 17:02:40 -0600	[thread overview]
Message-ID: <87lgieqgz3.fsf@kerf.amer.corp.natinst.com> (raw)
In-Reply-To: <20171207195052.GG18445@jcartwri.amer.corp.natinst.com>


Julia Cartwright writes:

> On Thu, Dec 07, 2017 at 08:57:59AM -0600, Gratian Crisan wrote:
>>
>> Peter Zijlstra writes:
>> > The below compiles and boots, but is otherwise untested. Could you give
>> > it a spin?
>>
>> Thank you! Yes, I'll start a test now.
>
> I gave it a spin with my minimal reproducing case w/ the strategic
> msleep().  Previously, I could reproduce it in less than a minute in
> that setup; now it's been running for a couple hours.  So ... looks
> good? :)

Yep ... looks good to me. I've been running two targets with the
original reproducer for 8 hours now plus a target running the C test.
All of them are still going.

I'm going to let them run overnight to make sure but I'm going to call
it fixed.

-Gratian

  reply	other threads:[~2017-12-07 23:04 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-29 17:56 PI futexes + lock stealing woes Julia Cartwright
2017-12-01 20:11 ` Darren Hart
2017-12-01 21:49   ` Julia Cartwright
2017-12-02  0:32     ` Darren Hart
2017-12-06 23:46 ` Peter Zijlstra
2017-12-07  2:09   ` Gratian Crisan
2017-12-07 10:45     ` Peter Zijlstra
2017-12-07 14:26       ` Peter Zijlstra
2017-12-07 14:57         ` Gratian Crisan
2017-12-07 19:50           ` Julia Cartwright
2017-12-07 23:02             ` Gratian Crisan [this message]
2017-12-08 12:49               ` [PATCH] futex: Avoid violating the 10th rule of futex Peter Zijlstra
2017-12-08 16:04                 ` Gratian Crisan
2018-01-08 21:09                 ` Julia Cartwright
2018-01-14 18:06                 ` [tip:locking/urgent] " tip-bot for Peter Zijlstra

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