linux-kernel - Re: ipc,sem: sysv semaphore scalability

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Message-ID: <20130326192852.GA25899@redhat.com>
Date:	Tue, 26 Mar 2013 15:28:52 -0400
From:	Dave Jones <davej@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Rik van Riel <riel@...riel.com>, torvalds@...ux-foundation.org,
	davidlohr.bueso@...com, linux-kernel@...r.kernel.org,
	hhuang@...hat.com, jason.low2@...com, walken@...gle.com,
	lwoodman@...hat.com, chegu_vinod@...com,
	Peter Hurley <peter@...leysoftware.com>
Subject: Re: ipc,sem: sysv semaphore scalability

On Thu, Mar 21, 2013 at 02:10:58PM -0700, Andrew Morton wrote:

 > Whichever way we go, we should get a wiggle on - this has been hanging
 > around for too long.  Dave, do you have time to determine whether
 > reverting 88b9e456b1649722673ff ("ipc: don't allocate a copy larger
 > than max") fixes things up?

Ok, with that reverted it's been grinding away for a few hours without incident.
Normally I see the oops within a minute or so.

	Dave
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