From: Dave Jones <davej@redhat.com>
To: Hugh Dickins <hughd@google.com>
Cc: Sasha Levin <sasha.levin@oracle.com>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Bob Liu <bob.liu@oracle.com>,
Konstantin Khlebnikov <koct9i@gmail.com>
Subject: Re: bad rss-counter message in 3.14rc5
Date: Thu, 20 Mar 2014 09:51:37 -0400 [thread overview]
Message-ID: <20140320135137.GA2263@redhat.com> (raw)
In-Reply-To: <alpine.LSU.2.11.1403192147470.971@eggly.anvils>
On Wed, Mar 19, 2014 at 10:00:29PM -0700, Hugh Dickins wrote:
> > This might be collateral damage from the swapops thing, I guess we won't know until
> > that gets fixed, but I thought I'd mention that we might still have a problem here.
>
> Yes, those Bad rss-counters could well be collateral damage from the
> swapops BUG. To which I believe I now have the answer: again untested,
> but please give this a try...
This survived an overnight run. No swapops bug, and no bad RSS. Good job :)
> (It's worth saying, by the way, that these bugs are not a consequence
> of recent changes at all, they've been there for ages; but trinity has
> just got better at taunting remap_file_pages and the rest of mm...)
Indeed. I hope to lift the covers on more stuff like this (and hopefully
get it done in a more reproducable manner). A lot of the stuff trinity
is doing with VM syscalls is still very naive.
Dave
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Jones <davej@redhat.com>
To: Hugh Dickins <hughd@google.com>
Cc: Sasha Levin <sasha.levin@oracle.com>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Bob Liu <bob.liu@oracle.com>,
Konstantin Khlebnikov <koct9i@gmail.com>
Subject: Re: bad rss-counter message in 3.14rc5
Date: Thu, 20 Mar 2014 09:51:37 -0400 [thread overview]
Message-ID: <20140320135137.GA2263@redhat.com> (raw)
In-Reply-To: <alpine.LSU.2.11.1403192147470.971@eggly.anvils>
On Wed, Mar 19, 2014 at 10:00:29PM -0700, Hugh Dickins wrote:
> > This might be collateral damage from the swapops thing, I guess we won't know until
> > that gets fixed, but I thought I'd mention that we might still have a problem here.
>
> Yes, those Bad rss-counters could well be collateral damage from the
> swapops BUG. To which I believe I now have the answer: again untested,
> but please give this a try...
This survived an overnight run. No swapops bug, and no bad RSS. Good job :)
> (It's worth saying, by the way, that these bugs are not a consequence
> of recent changes at all, they've been there for ages; but trinity has
> just got better at taunting remap_file_pages and the rest of mm...)
Indeed. I hope to lift the covers on more stuff like this (and hopefully
get it done in a more reproducable manner). A lot of the stuff trinity
is doing with VM syscalls is still very naive.
Dave
next prev parent reply other threads:[~2014-03-20 13:51 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-05 17:45 bad rss-counter message in 3.14rc5 Dave Jones
2014-03-05 17:45 ` Dave Jones
2014-03-05 17:57 ` Dave Jones
2014-03-05 17:57 ` Dave Jones
2014-03-07 0:22 ` Dave Jones
2014-03-07 0:22 ` Dave Jones
2014-03-11 2:49 ` Dave Jones
2014-03-11 2:49 ` Dave Jones
2014-03-11 3:13 ` Andrew Morton
2014-03-11 3:13 ` Andrew Morton
2014-03-11 4:46 ` Andrew Morton
2014-03-11 4:46 ` Andrew Morton
2014-03-11 4:50 ` Dave Jones
2014-03-11 4:50 ` Dave Jones
2014-03-11 4:51 ` Dave Jones
2014-03-11 4:51 ` Dave Jones
2014-03-11 5:01 ` Andrew Morton
2014-03-11 5:01 ` Andrew Morton
2014-03-11 5:07 ` Dave Jones
2014-03-11 5:07 ` Dave Jones
2014-03-11 5:30 ` Dave Jones
2014-03-11 5:30 ` Dave Jones
2014-03-11 12:55 ` Sasha Levin
2014-03-11 12:55 ` Sasha Levin
2014-03-11 13:20 ` Cyrill Gorcunov
2014-03-11 13:20 ` Cyrill Gorcunov
2014-03-11 13:23 ` Sasha Levin
2014-03-11 13:23 ` Sasha Levin
2014-03-11 13:41 ` Cyrill Gorcunov
2014-03-11 13:41 ` Cyrill Gorcunov
2014-03-11 14:28 ` Dave Jones
2014-03-11 14:28 ` Dave Jones
2014-03-11 14:37 ` Cyrill Gorcunov
2014-03-11 14:37 ` Cyrill Gorcunov
2014-03-11 14:58 ` Sasha Levin
2014-03-11 14:58 ` Sasha Levin
2014-03-11 17:10 ` Dave Jones
2014-03-11 17:10 ` Dave Jones
2014-03-11 17:36 ` Cyrill Gorcunov
2014-03-11 17:36 ` Cyrill Gorcunov
2014-03-11 17:39 ` Dave Jones
2014-03-11 17:39 ` Dave Jones
2014-03-14 12:27 ` Cyrill Gorcunov
2014-03-14 12:27 ` Cyrill Gorcunov
2014-03-19 0:38 ` Hugh Dickins
2014-03-19 0:38 ` Hugh Dickins
2014-03-19 1:10 ` Linus Torvalds
2014-03-19 1:10 ` Linus Torvalds
2014-03-19 2:06 ` Hugh Dickins
2014-03-19 2:06 ` Hugh Dickins
2014-03-19 2:24 ` Linus Torvalds
2014-03-19 2:24 ` Linus Torvalds
2014-03-19 2:37 ` Hugh Dickins
2014-03-19 2:37 ` Hugh Dickins
2014-03-19 2:57 ` Linus Torvalds
2014-03-19 2:57 ` Linus Torvalds
2014-03-19 11:04 ` Jan Kara
2014-03-19 11:04 ` Jan Kara
2014-03-19 1:32 ` Sasha Levin
2014-03-19 1:32 ` Sasha Levin
2014-03-19 2:06 ` Dave Jones
2014-03-19 2:06 ` Dave Jones
2014-03-19 2:11 ` Dave Jones
2014-03-19 2:11 ` Dave Jones
2014-03-19 2:19 ` Hugh Dickins
2014-03-19 2:19 ` Hugh Dickins
2014-03-19 14:52 ` Dave Jones
2014-03-19 14:52 ` Dave Jones
2014-03-20 5:00 ` Hugh Dickins
2014-03-20 5:00 ` Hugh Dickins
2014-03-20 13:51 ` Dave Jones [this message]
2014-03-20 13:51 ` Dave Jones
2014-03-20 14:19 ` Sasha Levin
2014-03-20 14:19 ` Sasha Levin
2014-03-21 4:46 ` Hugh Dickins
2014-03-21 4:46 ` Hugh Dickins
2014-03-19 2:12 ` Hugh Dickins
2014-03-19 2:12 ` Hugh Dickins
2014-03-19 2:42 ` Sasha Levin
2014-03-19 2:42 ` Sasha Levin
2014-03-19 12:04 ` Cyrill Gorcunov
2014-03-19 12:04 ` Cyrill Gorcunov
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