From: Anirban Sinha <ani@anirban.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, Darren Hart <dvhltc@us.ibm.com>,
Kaz Kylheku <kaz@zeugmasystems.com>,
Anirban Sinha <asinha@zeugmasystems.com>
Subject: Re: futex question
Date: Mon, 05 Oct 2009 07:03:18 -0700 [thread overview]
Message-ID: <4AC9FCA6.8060203@anirban.org> (raw)
In-Reply-To: <alpine.LFD.2.00.0910051525560.2646@localhost.localdomain>
Once upon a time, like on 09-10-05 6:28 AM, Thomas Gleixner wrote:
> Can you please fix your mail client to do proper line breaks at around
> 78 chars ?
Hmm. I made that change deliberately according to instructions in
Documentation/email-clients.txt so that it does not break my patches :) Anyway,
back to previous setting.
>>
>> We need to clear those pointers regardless. After the exceve(), the
>> address values are meaningless under the new mm context.
>
> That's out of question. We just need to come to a decision whether we
> silently clean up callers dumbness or not.
Correct me if I am wrong, but according to Ingo:
> So i think exec() should release all existing state, unless told
> otherwise. Making it behave differently for robust futexes sounds
> assymetric to me.
I thought clearing the head pointers was a part of the stale existing state?
next prev parent reply other threads:[~2009-10-05 14:03 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-30 1:10 futex question Anirban Sinha
2009-10-01 9:22 ` Ingo Molnar
2009-10-01 16:54 ` Anirban Sinha
2009-10-01 23:46 ` Anirban Sinha
2009-10-02 23:38 ` Darren Hart
2009-10-03 0:36 ` Anirban Sinha
2009-10-03 4:14 ` Eric Dumazet
2009-10-04 8:44 ` Thomas Gleixner
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C501F457C5@exchange.ZeugmaSystems.local>
2009-10-04 16:37 ` Anirban Sinha
2009-10-04 16:59 ` Thomas Gleixner
2009-10-05 10:36 ` Peter Zijlstra
2009-10-05 10:56 ` Thomas Gleixner
2009-10-05 11:16 ` Peter Zijlstra
2009-10-05 11:19 ` Ingo Molnar
2009-10-05 11:50 ` Thomas Gleixner
2009-10-05 11:47 ` Thomas Gleixner
2009-10-05 13:11 ` Anirban Sinha
2009-10-05 13:28 ` Thomas Gleixner
2009-10-05 14:03 ` Anirban Sinha [this message]
2009-10-05 18:36 ` Anirban Sinha
2009-10-05 11:58 ` Peter Zijlstra
2009-10-05 11:59 ` Thomas Gleixner
2009-10-05 12:18 ` Peter Zijlstra
2009-10-05 12:24 ` Ingo Molnar
2009-10-05 14:09 ` Darren Hart
2009-10-05 18:11 ` Anirban Sinha
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