Date: Wed, 13 May 2015 17:31:57 +0100
From: Mel Gorman <mgorman@suse.de>
To: nzimmer <nzimmer@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Waiman Long <waiman.long@hp.com>, Dave Hansen <dave.hansen@intel.com>,
        Scott Norton <scott.norton@hp.com>,
        Daniel J Blueman <daniel@numascale.com>, Linux-MM <linux-mm@kvack.org>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm: meminit: Finish initialisation of struct pages
 before basic setup
Message-ID: <20150513163157.GR2462@suse.de>
References: <1430231830-7702-1-git-send-email-mgorman@suse.de>
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 <554415B1.2050702@hp.com>
 <20150504143046.9404c572486caf71bdef0676@linux-foundation.org>
 <20150505104514.GC2462@suse.de>
 <20150505130255.49ff76bbf0a3b32d884ab2ce@linux-foundation.org>
 <20150507072518.GL2462@suse.de>
 <20150507150932.79e038167f70dd467c25d6ee@linux-foundation.org>
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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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