linux-kernel - Re: [PATCH] sched: tg_set_cfs_bandwidth() causes rq->lock deadlock

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Message-Id: <107621400596463@webcorp2h.yandex-team.ru>
Date:	Tue, 20 May 2014 18:34:23 +0400
From:	Roman Gushchin <klamm@...dex-team.ru>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	"bsegall@...gle.com" <bsegall@...gle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"pjt@...gle.com" <pjt@...gle.com>,
	"chris.j.arges@...onical.com" <chris.j.arges@...onical.com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] sched: tg_set_cfs_bandwidth() causes rq->lock deadlock

> Do you have an easy to reproduce setup and workload so I might be able
> to test as well? Or are you simply dumping it in 'production' to see
> what happens?

No. I have only a "production" setup, where I can nicely reproduce all these lockups.
It takes ~1 day. I also tried to reproduce them locally but without any success.

Thanks,
Roman
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