linux-kernel - Re: [PATCH] mm: meminit: Finish initialisation of struct pages before basic setup

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Message-ID: <20150513163157.GR2462@suse.de>
Date:	Wed, 13 May 2015 17:31:57 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	nzimmer <nzimmer@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Waiman Long <waiman.long@...com>,
	Dave Hansen <dave.hansen@...el.com>,
	Scott Norton <scott.norton@...com>,
	Daniel J Blueman <daniel@...ascale.com>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: meminit: Finish initialisation of struct pages
 before basic setup

On Wed, May 13, 2015 at 10:53:33AM -0500, nzimmer wrote:
> I am just noticed a hang on my largest box.
> I can only reproduce with large core counts, if I turn down the
> number of cpus it doesn't have an issue.
> 

Odd. The number of core counts should make little a difference as only
one CPU per node should be in use. Does sysrq+t give any indication how
or where it is hanging?

-- 
Mel Gorman
SUSE Labs
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