linux-kernel - Re: Panic on 8-node system in memblock_virt_alloc_try

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Message-ID: <52E285DA.1090107@intel.com>
Date:	Fri, 24 Jan 2014 07:25:14 -0800
From:	Dave Hansen <dave.hansen@...el.com>
To:	Yinghai Lu <yinghai@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
	Ingo Molnar <mingo@...e.hu>
CC:	Grygorii Strashko <grygorii.strashko@...com>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Panic on 8-node system in memblock_virt_alloc_try_nid()

On 01/24/2014 07:01 AM, Dave Hansen wrote:
> There are two failure modes I'm seeing: one when (failing to) allocate
> the first node's mem_map[], and a second where it oopses accessing the
> numa_distance[] table.  This is the numa_distance[] one, and it happens
> even with the patch you suggested applied.

And with my second (lots of debugging enabled) config, I get the
mem_map[] oops.  In other words, none of the reverts or patches are
helping either of the conditions that I'm able to trigger.

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