linux-kernel - Re: audit: rcu_read_lock() used illegally while idle

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Message-ID: <20141203201947.GA4931@redhat.com>
Date:	Wed, 3 Dec 2014 15:19:47 -0500
From:	Dave Jones <davej@...hat.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	paulmck@...ux.vnet.ibm.com,
	Linux Kernel <linux-kernel@...r.kernel.org>, rgb@...hat.com,
	eparis@...hat.com, fweisbec@...il.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: audit: rcu_read_lock() used illegally while idle

On Wed, Dec 03, 2014 at 12:06:56PM -0800, Andy Lutomirski wrote:
 
 > >> Did something in RCU change recently ?
 > > 
 > > Not since -rc1, as far as I know, anyway.
 > 
 > I have patches to delete this whole fscking sysret fast but not really
 > fast path.  I'll resend them for 3.19.  In the mean time, can you test
 > this patch by itself:
 > 
 > https://git.kernel.org/cgit/linux/kernel/git/luto/linux.git/commit/?h=x86/entry&id=1072a16a8d4ad1b11b8062f76e3236b9771b0fb6

With that applied, I no longer see the trace.

thanks,

	Dave

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