From: Johannes Weiner <hannes@cmpxchg.org>
To: Yang Yingliang <yangyingliang@huawei.com>
Cc: tj@kernel.org, lizefan@huawei.com, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org, wangkefeng.wang@huawei.com,
linux-mm@kvack.org, guro@cmpxchg.org
Subject: Re: memleak in cgroup
Date: Mon, 27 Apr 2020 13:13:04 -0400 [thread overview]
Message-ID: <20200427171304.GC29022@cmpxchg.org> (raw)
In-Reply-To: <34dfdb52-6efd-7b11-07c8-9461a13b3aa4@huawei.com>
+cc Roman who has been looking the most at this area
On Mon, Apr 27, 2020 at 03:48:13PM +0800, Yang Yingliang wrote:
> +cc linux-mm@kvack.org <mailto:linux-mm@kvack.org>
>
> On 2020/4/26 19:21, Yang Yingliang wrote:
> > Hi,
> >
> > When I doing the follow test in kernel-5.7-rc2, I found mem-free is
> > decreased
> >
> > #!/bin/sh
> > cd /sys/fs/cgroup/memory/
> >
> > for((i=0;i<45;i++))
> > do
> > for((j=0;j<60000;j++))
> > do
> > mkdir /sys/fs/cgroup/memory/yyl-cg$j
> > done
> > sleep 1
> > ls /sys/fs/cgroup/memory/ | grep yyl | xargs rmdir
> > done
Should be easy enough to reproduce, thanks for the report. I'll try to
take a look later this week, unless Roman beats me to it.
Is this a new observation in 5.7-rc2?
Can you provide /sys/fs/cgroup/unified/cgroup.stat after the test?
next prev parent reply other threads:[~2020-04-27 17:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-26 11:21 memleak in cgroup Yang Yingliang
[not found] ` <34dfdb52-6efd-7b11-07c8-9461a13b3aa4@huawei.com>
2020-04-27 17:13 ` Johannes Weiner [this message]
2020-04-27 17:24 ` Roman Gushchin
2020-04-28 9:10 ` Yang Yingliang
2020-04-28 17:45 ` Roman Gushchin
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