From: Dave Hansen <haveblue@us.ibm.com>
To: Ravikiran G Thirumalai <kiran@scalex86.org>
Cc: Andrew Morton <akpm@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
shai@scalex86.org
Subject: Re: [patch] mm: Ensure proper alignment for node_remap_start_pfn
Date: Thu, 28 Jul 2005 10:20:26 -0700 [thread overview]
Message-ID: <1122571226.23386.44.camel@localhost> (raw)
In-Reply-To: <20050728013134.GB23923@localhost.localdomain>
On Wed, 2005-07-27 at 18:31 -0700, Ravikiran G Thirumalai wrote:
> On Wed, Jul 27, 2005 at 06:17:24PM -0700, Andrew Morton wrote:
> > Ravikiran G Thirumalai <kiran@scalex86.org> wrote:
> > >
> > > While reserving KVA for lmem_maps of node, we have to make sure that
> > > node_remap_start_pfn[] is aligned to a proper pmd boundary.
> > > (node_remap_start_pfn[] gets its value from node_end_pfn[])
> > >
> >
> > What are the effects of not having this patch applied? Does someone's
> > computer crash, or what?
>
> Yes, it does cause a crash.
I don't know of any NUMA x86 sub-arches that have nodes which are
aligned on any less than 2MB. Is this an architecture that's supported
in the tree, today?
-- Dave
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next prev parent reply other threads:[~2005-07-28 17:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-28 0:42 Ravikiran G Thirumalai
2005-07-28 1:17 ` Andrew Morton
2005-07-28 1:31 ` Ravikiran G Thirumalai
2005-07-28 17:20 ` Dave Hansen [this message]
2005-07-28 18:14 ` Ravikiran G Thirumalai
2005-07-28 18:25 ` Dave Hansen
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