From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Johannes Weiner <hannes@cmpxchg.org>,
linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, guro@fb.com,
kirill.shutemov@linux.intel.com, linux-kernel@vger.kernel.org,
rientjes@google.com, yang.s@alibaba-inc.com,
Andrew Morton <akpm@linux-foundation.org>,
Petr Mladek <pmladek@suse.com>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
syzbot <syzbot+77e6b28a7a7106ad0def@syzkaller.appspotmail.com>
Subject: Re: [PATCH v3] mm: memcontrol: Don't flood OOM messages with no eligible task.
Date: Thu, 18 Oct 2018 17:13:52 +0900 [thread overview]
Message-ID: <20181018081352.GA438@jagdpanzerIV> (raw)
In-Reply-To: <20181018075611.GY18839@dhcp22.suse.cz>
On (10/18/18 09:56), Michal Hocko wrote:
> On Thu 18-10-18 15:10:18, Sergey Senozhatsky wrote:
> [...]
> > and let's hear from MM people what they can suggest.
> >
> > Michal, Andrew, Johannes, any thoughts?
>
> I have already stated my position. Let's not reinvent the wheel and use
> the standard printk throttling. If there are cases where oom reports
> cause more harm than good I am open to add a knob to allow disabling it
> altogether (it can be even fine grained one to control whether to dump
> show_mem, task_list etc.).
A knob might do.
As well as /proc/sys/kernel/printk tweaks, probably. One can even add
echo "a b c d" > /proc/sys/kernel/printk to .bashrc and adjust printk
console levels on login and rollback to old values in .bash_logout
May be.
> But please let's stop this dubious one-off approaches.
OK. Well, I'm not proposing anything actually. I didn't even
realize until recently that Tetsuo was talking about "user
interaction" problem; I thought that his problem was stalled
RCU.
-ss
next prev parent reply other threads:[~2018-10-18 8:13 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-17 10:06 [PATCH v3] mm: memcontrol: Don't flood OOM messages with no eligible task Tetsuo Handa
2018-10-17 10:28 ` Michal Hocko
2018-10-17 11:17 ` Sergey Senozhatsky
2018-10-17 11:29 ` Michal Hocko
2018-10-18 2:46 ` Tetsuo Handa
2018-10-18 4:27 ` Sergey Senozhatsky
2018-10-18 5:26 ` Tetsuo Handa
2018-10-18 6:10 ` Sergey Senozhatsky
2018-10-18 7:56 ` Michal Hocko
2018-10-18 8:13 ` Sergey Senozhatsky [this message]
2018-10-18 11:58 ` Tetsuo Handa
2018-10-18 23:54 ` Sergey Senozhatsky
2018-10-19 10:35 ` Tetsuo Handa
2018-10-23 0:47 ` Sergey Senozhatsky
2018-10-23 8:37 ` Petr Mladek
2018-10-23 8:54 ` Michal Hocko
2018-10-18 14:30 ` Petr Mladek
2018-10-19 0:18 ` Tetsuo Handa
2018-10-23 8:21 ` Petr Mladek
2018-10-23 10:23 ` Tetsuo Handa
2018-10-18 6:55 ` Michal Hocko
2018-10-18 10:37 ` Tetsuo Handa
2018-10-18 11:23 ` Michal Hocko
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