From: Hugh Dickins <hughd@google.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Hugh Dickins <hughd@google.com>,
Paul Mackerras <paulus@ozlabs.org>,
linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org
Subject: Re: Problems with swapping in v4.5-rc on POWER
Date: Wed, 24 Feb 2016 21:43:06 -0800 (PST) [thread overview]
Message-ID: <alpine.LSU.2.11.1602242136270.6876@eggly.anvils> (raw)
In-Reply-To: <877fhttmr1.fsf@linux.vnet.ibm.com>
On Thu, 25 Feb 2016, Aneesh Kumar K.V wrote:
>
> Can you test the impact of the merge listed below ?(ie, revert the merge and see if
> we can reproduce and also verify with merge applied). This will give us a
> set of commits to look closer. We had quiet a lot of page table
> related changes going in this merge window.
>
> f689b742f217b2ffe7 ("Pull powerpc updates from Michael Ellerman:")
>
> That is the merge commit that added _PAGE_PTE.
Another experiment running on it at the moment, I'd like to give that
a few more hours, and then will try the revert you suggest. But does
that merge revert cleanly, did you try? I'm afraid of interactions,
whether obvious or subtle, with the THP refcounting rework. Oh, since
I don't have THP configured on, maybe I can ignore any issues from that.
Hugh
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next prev parent reply other threads:[~2016-02-25 5:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-25 2:10 Hugh Dickins
2016-02-25 4:12 ` Michael Ellerman
2016-02-25 5:36 ` Hugh Dickins
2016-02-25 4:52 ` Aneesh Kumar K.V
2016-02-25 5:43 ` Hugh Dickins [this message]
2016-02-25 21:35 ` Hugh Dickins
2016-02-26 10:04 ` Hugh Dickins
2016-03-02 20:49 ` Hugh Dickins
2016-03-03 5:51 ` Michael Ellerman
2016-03-04 17:58 ` Hugh Dickins
2016-03-07 3:00 ` Michael Ellerman
2016-03-08 11:49 ` Hugh Dickins
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