From: Mel Gorman <mgorman@suse.de>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>, Hugh Dickins <hughd@google.com>,
Dave Jones <davej@redhat.com>, Rik van Riel <riel@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Kirill Shutemov <kirill.shutemov@linux.intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [RFC PATCH 0/7] Replace _PAGE_NUMA with PAGE_NONE protections
Date: Wed, 19 Nov 2014 13:14:06 +0000 [thread overview]
Message-ID: <20141119131406.GH2725@suse.de> (raw)
In-Reply-To: <546B7F73.6090805@oracle.com>
On Tue, Nov 18, 2014 at 12:18:43PM -0500, Sasha Levin wrote:
> On 11/18/2014 11:56 AM, Aneesh Kumar K.V wrote:
> >>> 4. Similarly, does the kernel boot properly without without patches?
> >> >
> >> > Yes, the kernel works fine without the patches both with and without fake
> >> > numa.
> >
> > Hmm that is interesting. I am not sure how writeback_fid can be
> > related. We use writeback fid to enable client side caching with 9p
> > (cache=loose). We use this fid to write back dirty pages later. Can you
> > share the qemu command line used, 9p mount options and the test details ?
>
> I'm using kvmtool rather than qemu. rootfs is created via kernel parameters:
>
> root=/dev/root rw rootflags=rw,trans=virtio,version=9p2000.L rootfstype=9p
>
> The test is just running trinity, there's no 9p or mm specific test going on.
>
> I've attached my .config.
>
Ok, based on that I was able to reproduce the problem. I hope to have a
V2 before the end of the week. Thanks.
--
Mel Gorman
SUSE Labs
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WARNING: multiple messages have this Message-ID (diff)
From: Mel Gorman <mgorman@suse.de>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>, Hugh Dickins <hughd@google.com>,
Dave Jones <davej@redhat.com>, Rik van Riel <riel@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Kirill Shutemov <kirill.shutemov@linux.intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [RFC PATCH 0/7] Replace _PAGE_NUMA with PAGE_NONE protections
Date: Wed, 19 Nov 2014 13:14:06 +0000 [thread overview]
Message-ID: <20141119131406.GH2725@suse.de> (raw)
In-Reply-To: <546B7F73.6090805@oracle.com>
On Tue, Nov 18, 2014 at 12:18:43PM -0500, Sasha Levin wrote:
> On 11/18/2014 11:56 AM, Aneesh Kumar K.V wrote:
> >>> 4. Similarly, does the kernel boot properly without without patches?
> >> >
> >> > Yes, the kernel works fine without the patches both with and without fake
> >> > numa.
> >
> > Hmm that is interesting. I am not sure how writeback_fid can be
> > related. We use writeback fid to enable client side caching with 9p
> > (cache=loose). We use this fid to write back dirty pages later. Can you
> > share the qemu command line used, 9p mount options and the test details ?
>
> I'm using kvmtool rather than qemu. rootfs is created via kernel parameters:
>
> root=/dev/root rw rootflags=rw,trans=virtio,version=9p2000.L rootfstype=9p
>
> The test is just running trinity, there's no 9p or mm specific test going on.
>
> I've attached my .config.
>
Ok, based on that I was able to reproduce the problem. I hope to have a
V2 before the end of the week. Thanks.
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2014-11-19 13:14 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 13:32 [RFC PATCH 0/7] Replace _PAGE_NUMA with PAGE_NONE protections Mel Gorman
2014-11-14 13:32 ` Mel Gorman
2014-11-14 13:33 ` [PATCH 1/7] mm: Add p[te|md] protnone helpers for use by NUMA balancing Mel Gorman
2014-11-14 13:33 ` Mel Gorman
2014-11-14 13:33 ` [PATCH 2/7] mm: Convert p[te|md]_numa users to p[te|md]_protnone_numa Mel Gorman
2014-11-14 13:33 ` Mel Gorman
2014-11-14 13:33 ` [PATCH 3/7] mm: Convert p[te|md]_mknonnuma and remaining page table manipulations Mel Gorman
2014-11-14 13:33 ` Mel Gorman
2014-11-14 13:33 ` [PATCH 4/7] mm: Remove remaining references to NUMA hinting bits and helpers Mel Gorman
2014-11-14 13:33 ` Mel Gorman
2014-11-14 13:33 ` [PATCH 5/7] mm: numa: Do not trap faults on the huge zero page Mel Gorman
2014-11-14 13:33 ` Mel Gorman
2014-11-14 13:33 ` [PATCH 6/7] x86: mm: Restore original pte_special check Mel Gorman
2014-11-14 13:33 ` Mel Gorman
2014-11-14 13:33 ` [PATCH 7/7] mm: numa: Add paranoid check around pte_protnone_numa Mel Gorman
2014-11-14 13:33 ` Mel Gorman
2014-11-15 1:41 ` [RFC PATCH 0/7] Replace _PAGE_NUMA with PAGE_NONE protections Linus Torvalds
2014-11-15 1:41 ` Linus Torvalds
2014-11-15 3:29 ` Sasha Levin
2014-11-15 3:29 ` Sasha Levin
2014-11-18 15:42 ` Mel Gorman
2014-11-18 15:42 ` Mel Gorman
2014-11-18 16:33 ` Sasha Levin
2014-11-18 16:33 ` Sasha Levin
2014-11-18 16:56 ` Aneesh Kumar K.V
2014-11-18 16:56 ` Aneesh Kumar K.V
2014-11-18 17:14 ` Mel Gorman
2014-11-18 17:14 ` Mel Gorman
2014-11-18 17:18 ` Sasha Levin
2014-11-19 13:14 ` Mel Gorman [this message]
2014-11-19 13:14 ` Mel Gorman
2014-11-17 8:26 ` Aneesh Kumar K.V
2014-11-17 8:26 ` Aneesh Kumar K.V
2014-11-17 8:26 ` Aneesh Kumar K.V
2014-11-18 16:01 ` Mel Gorman
2014-11-18 16:01 ` Mel Gorman
2014-11-18 16:01 ` Mel Gorman
2014-11-18 16:33 ` Aneesh Kumar K.V
2014-11-18 16:33 ` Aneesh Kumar K.V
2014-11-18 16:33 ` Aneesh Kumar K.V
2014-11-18 17:08 ` Mel Gorman
2014-11-18 17:08 ` Mel Gorman
2014-11-18 17:08 ` Mel Gorman
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