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From: Oleg Nesterov <oleg@redhat.com>
To: Kirill Tkhai <tkhai@yandex.ru>
Cc: Kirill Tkhai <ktkhai@parallels.com>,
	linux-kernel@vger.kernel.org,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Vladimir Davydov <vdavydov@parallels.com>
Subject: Re: [PATCH v3] sched/numa: fix unsafe get_task_struct() in task_numa_assign()
Date: Mon, 20 Oct 2014 23:34:29 +0200	[thread overview]
Message-ID: <20141020213429.GA5245@redhat.com> (raw)
In-Reply-To: <54457918.8090006@yandex.ru>

Kirill,

You should be as rude as you can if you send an email to lkml! You
are breaking the well-known rules, and now I have to mimic your wrong
behaviour.

On 10/21, Kirill Tkhai wrote:
>
> No, I won't send. Please do this. Your idea and your patch is almost
> ready. Thanks :)

Come on. You have found the nontrivial problem. This is much more
important than a simple fix.

And if we prefer a less-trivial fix which plays with ->curr recheck,
then it will be based on your idea, not mine.

So please make a patch after we know what Peter thinks.

Oleg.


  reply	other threads:[~2014-10-20 21:38 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-20 10:15 Kirill Tkhai
2014-10-20 14:47 ` Oleg Nesterov
2014-10-20 16:56   ` Oleg Nesterov
2014-10-20 18:27     ` Oleg Nesterov
2014-10-20 20:18       ` Kirill Tkhai
2014-10-20 20:50         ` Oleg Nesterov
2014-10-20 21:05           ` Kirill Tkhai
2014-10-20 21:34             ` Oleg Nesterov [this message]
2014-10-20 22:57               ` Peter Zijlstra
2014-10-21  9:45           ` Peter Zijlstra
2014-10-21 19:03             ` Oleg Nesterov
2014-10-21 20:03               ` Kirill Tkhai
2014-10-21 20:10                 ` Kirill Tkhai
2014-10-22  9:09               ` Peter Zijlstra
2014-10-22 16:14                 ` Oleg Nesterov
2014-10-22 16:37                   ` Peter Zijlstra
2014-10-22 18:14                     ` introduce probe_slab_address? (Was: sched/numa: fix unsafe get_task_struct() in task_numa_assign()) Oleg Nesterov
2014-10-22 18:59                       ` introduce probe_slab_address? David Miller
2014-10-22 19:42                         ` Oleg Nesterov
2014-10-22 20:08                           ` David Miller
2014-10-22 20:20                             ` Oleg Nesterov
2014-10-24  9:44                         ` Peter Zijlstra

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