linux-kernel - Re: ipc/testmsg GPF.

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Message-ID: <20130309003248.GA6743@redhat.com>
Date:	Fri, 8 Mar 2013 19:32:48 -0500
From:	Dave Jones <davej@...hat.com>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: ipc/testmsg GPF.

On Fri, Mar 08, 2013 at 07:27:01PM -0500, Peter Hurley wrote:
 > [ +Andrew Morton ]
 > 
 > On Thu, 2013-03-07 at 16:38 -0500, Dave Jones wrote:
 > > Trying to reproduce that nd_jump_link trace, but I keep hitting other bugs
 > > instead.  It's like whackamole. Except these are even more annoying
 > > than moles.
 > 
 > Dave,
 > I thought I copied you on the 'ipc MSG_COPY fixes' patchset that fixes
 > this. Or is this gp fault happening with that patchset?

I hadn't gotten around to applying them to my testing tree. 
Worth noting that of the dozens of oopses I've seen the last few days
I think I only saw this one once.

(Though I've narrowed my testing scope right now to try and tickle
 those fs/namei.c bugs, so it could just be that I'm not exercising
 the codepaths that caused the ipc bug)

	Dave

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