RE: A small window for a race condition in mm/rmap.c:page_lock_anon_vma_read

From	Dashi DS1 Cao <caods1@lenovo.com>
Newsgroups	linux.kernel
Subject	RE: A small window for a race condition in mm/rmap.c:page_lock_anon_vma_read
Date	2016-12-25 03:30 +0100
Message-ID	<sS6Jr-6Jc-1@gated-at.bofh.it> (permalink)
References	(1 earlier) <sQQno-4FS-23@gated-at.bofh.it> <sRc4y-1Kl-15@gated-at.bofh.it> <sRk26-6Qu-17@gated-at.bofh.it> <sRnt0-FD-5@gated-at.bofh.it> <sRz17-7ZC-1@gated-at.bofh.it>
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It's a CentOS 7.2, so there is point in asking RHT. I'll try to persuade the customer to have a try with kernel version 4.9, if only I can get it work with CentOS 7.2.

Dashi Cao

-----Original Message-----
From: Peter Zijlstra [mailto:peterz@infradead.org] 
Sent: Friday, December 23, 2016 10:20 PM
To: Dashi DS1 Cao <caods1@lenovo.com>
Cc: Hugh Dickins <hughd@google.com>; Michal Hocko <mhocko@kernel.org>; linux-mm@kvack.org; linux-kernel@vger.kernel.org
Subject: Re: A small window for a race condition in mm/rmap.c:page_lock_anon_vma_read

On Fri, Dec 23, 2016 at 02:02:14AM +0000, Dashi DS1 Cao wrote:
> The kernel version is "RELEASE: 3.10.0-327.36.3.el7.x86_64". It was the latest kernel release of CentOS 7.2 at that time, or maybe still now.

This would be the point where we ask you to run a recent upstream kernel and try and reproduce the problem with that, or contact RHT for support on their franken-kernel ;-)

Thread

A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Dashi DS1 Cao <caods1@lenovo.com> - 2016-12-20 10:50 +0100
  Re: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Michal Hocko <mhocko@kernel.org> - 2016-12-21 15:50 +0100
    Re: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Michal Hocko <mhocko@kernel.org> - 2016-12-22 13:10 +0100
    RE: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Dashi DS1 Cao <caods1@lenovo.com> - 2016-12-22 13:10 +0100
      RE: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Dashi DS1 Cao <caods1@lenovo.com> - 2016-12-22 13:50 +0100
    Re: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Peter Zijlstra <peterz@infradead.org> - 2016-12-22 15:00 +0100
      Re: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Hugh Dickins <hughd@google.com> - 2016-12-22 23:30 +0100
        RE: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Dashi DS1 Cao <caods1@lenovo.com> - 2016-12-23 03:10 +0100
          RE: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Hugh Dickins <hughd@google.com> - 2016-12-23 04:40 +0100
          Re: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Peter Zijlstra <peterz@infradead.org> - 2016-12-23 15:30 +0100
            RE: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Dashi DS1 Cao <caods1@lenovo.com> - 2016-12-25 03:30 +0100
        RE: A small window for a race condition in  mm/rmap.c:page_lock_anon_vma_read Dashi DS1 Cao <caods1@lenovo.com> - 2016-12-23 03:50 +0100

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