From: xunlei <xlpang@linux.alibaba.com>
To: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
Vladimir Davydov <vdavydov.dev@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: memcg: Fix memcg reclaim soft lockup
Date: Wed, 26 Aug 2020 21:48:06 +0800 [thread overview]
Message-ID: <cbf64fdf-65a5-bda3-7a60-9b3ca70a16c9@linux.alibaba.com> (raw)
In-Reply-To: <20200826132620.GR22869@dhcp22.suse.cz>
On 2020/8/26 下午9:26, Michal Hocko wrote:
> On Wed 26-08-20 21:16:28, xunlei wrote:
> [...]
>> oom_reaper also can't get scheduled because of 1-cpu, and the mutex
>> uses might_sleep() which is noop in case of "CONFIG_PREEMPT_VOLUNTARY is
>> not set" I mentioned in the commit log.
>
> OK, I see. I have clearly missed the 1cpu configuration. Sorry about
> that.
>
> Thanks for bearing with me.
>
Thanks for the confirmation, has sent v2.
prev parent reply other threads:[~2020-08-26 13:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-26 7:27 [PATCH] mm: memcg: Fix memcg reclaim soft lockup Xunlei Pang
2020-08-26 8:11 ` Michal Hocko
2020-08-26 10:41 ` xunlei
2020-08-26 11:00 ` Michal Hocko
2020-08-26 11:45 ` xunlei
2020-08-26 11:54 ` Xunlei Pang
2020-08-26 12:00 ` xunlei
2020-08-26 12:07 ` Michal Hocko
2020-08-26 12:21 ` xunlei
2020-08-26 12:48 ` Michal Hocko
2020-08-26 13:16 ` xunlei
2020-08-26 13:26 ` Michal Hocko
2020-08-26 13:48 ` xunlei [this message]
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