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From: Felipe Contreras <felipe.contreras@gmail.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 3.11-rc4
Date: Mon, 5 Aug 2013 13:08:17 -0500	[thread overview]
Message-ID: <CAMP44s2wj645tssgffN5QfBB3YPyAWUQ2tBiX=LWLYwX=Nb_QA@mail.gmail.com> (raw)
In-Reply-To: <CAMP44s3UGH8Aq-L3CsJ6BFFjZPBG18Gob6_avHMsz8rnrse51g@mail.gmail.com>

On Mon, Aug 5, 2013 at 12:43 PM, Felipe Contreras
<felipe.contreras@gmail.com> wrote:
> On Mon, Aug 5, 2013 at 12:39 PM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
>
>> That said, Felipe, can you double-check that it's not timing-related
>> in some subtle way, and test multiple times with just that commit
>> reverted (and not reverted) to make sure that it's 100% that one
>> single line by that particular commit? Because it does seem very
>> benign..
>
> I tested perhaps dozens of times with the patch, and every one of them
> failed. I tested at least 6 times with the patch reverted, every one
> of them worked.
>
> I'm fairly certain that it's 100% reproducible, so it doesn't seem to be a race.
>
> But I'll double-check.

Yeah, I just tested 5 times; with the patch all 5 times failed,
without the patch all 5 times worked.

-- 
Felipe Contreras

  reply	other threads:[~2013-08-05 18:08 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-04 21:09 Linux 3.11-rc4 Linus Torvalds
2013-08-05  2:34 ` O_TMPFILE fs corruption (Re: Linux 3.11-rc4) Andy Lutomirski
2013-08-05  3:45   ` Linus Torvalds
2013-08-05  4:45     ` Andrew Lutomirski
2013-08-05  8:26     ` Christoph Hellwig
2013-08-05 16:04       ` Jörn Engel
2013-08-05 14:31     ` Al Viro
2013-08-05  4:20 ` Linux 3.11-rc4 Felipe Contreras
2013-08-05 13:29   ` Oleg Nesterov
2013-08-05 14:27     ` Felipe Contreras
2013-08-05 14:39       ` Oleg Nesterov
2013-08-05 17:02         ` Felipe Contreras
2013-08-05 17:11           ` Oleg Nesterov
2013-08-05 17:40             ` Felipe Contreras
2013-08-05 17:56               ` Oleg Nesterov
2013-08-05 17:39     ` Linus Torvalds
2013-08-05 17:43       ` Felipe Contreras
2013-08-05 18:08         ` Felipe Contreras [this message]
2013-08-05 17:47       ` Oleg Nesterov
2013-08-05 18:46   ` Oleg Nesterov
2013-08-05 18:54     ` Linus Torvalds
2013-08-05 18:57       ` Oleg Nesterov
2013-08-05 19:06         ` Linus Torvalds
2013-08-06 15:43   ` [PATCH 0/1] (Was: Linux 3.11-rc4) Oleg Nesterov
2013-08-06 15:43     ` [PATCH 1/1] Revert "ptrace: PTRACE_DETACH should do flush_ptrace_hw_breakpoint(child)" Oleg Nesterov
2013-08-07 12:05     ` [PATCH 0/1] (Was: Linux 3.11-rc4) Grazvydas Ignotas
2013-08-07 17:22       ` Oleg Nesterov
2013-08-07 19:26       ` Linus Torvalds
2013-08-07 19:27         ` Oleg Nesterov
2013-08-07 19:47           ` Linus Torvalds
2013-08-08 15:41             ` Oleg Nesterov
2013-08-08 16:25               ` Linus Torvalds
2013-08-08 16:54               ` Frederic Weisbecker
2013-08-08 18:15                 ` Oleg Nesterov
2013-08-09 16:45                   ` Frederic Weisbecker
2013-08-09 17:12                     ` Oleg Nesterov

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