From: Christoph Lameter <cl@linux.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Hugh Dickins <hughd@google.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org
Subject: Re: 4.12-rc ppc64 4k-page needs costly allocations
Date: Wed, 31 May 2017 09:09:04 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.20.1705310906570.14920@east.gentwo.org> (raw)
In-Reply-To: <87h9014j7t.fsf@concordia.ellerman.id.au>
On Wed, 31 May 2017, Michael Ellerman wrote:
> > SLUB: Unable to allocate memory on node -1, gfp=0x14000c0(GFP_KERNEL)
> > cache: pgtable-2^12, object size: 32768, buffer size: 65536, default order: 4, min order: 4
> > pgtable-2^12 debugging increased min order, use slub_debug=O to disable.
Ahh. Ok debugging increased the object size to an order 4. This should be
order 3 without debugging.
> > I did try booting with slub_debug=O as the message suggested, but that
> > made no difference: it still hoped for but failed on order:4 allocations.
I am curious as to what is going on there. Do you have the output from
these failed allocations?
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next prev parent reply other threads:[~2017-05-31 14:09 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-30 19:43 Hugh Dickins
2017-05-31 6:46 ` Michael Ellerman
2017-05-31 14:09 ` Christoph Lameter [this message]
2017-05-31 18:44 ` Hugh Dickins
2017-05-31 19:02 ` Mathieu Malaterre
2017-06-01 15:31 ` Christoph Lameter
2017-06-01 17:22 ` Hugh Dickins
2017-06-01 18:16 ` Christoph Lameter
2017-06-01 18:37 ` Hugh Dickins
2017-06-02 3:09 ` Michael Ellerman
2017-06-02 4:00 ` Hugh Dickins
2017-06-02 14:33 ` Christoph Lameter
2017-06-08 5:44 ` Michael Ellerman
2017-06-02 14:32 ` Christoph Lameter
2017-06-08 5:52 ` Michael Ellerman
2017-05-31 14:06 ` Christoph Lameter
2017-06-01 4:19 ` Aneesh Kumar K.V
2017-06-01 16:57 ` Hugh Dickins
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