From: Arnd Bergmann <arnd@arndb.de>
To: Kees Cook <keescook@chromium.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Andrew Morton <akpm@linux-foundation.org>,
Linux-Next Mailing List <linux-next@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: linux-next: build failure after merge of the akpm tree
Date: Tue, 1 Aug 2017 22:44:26 +0200 [thread overview]
Message-ID: <CAK8P3a1LtRf0MzoKJOsZ8Py5isQHFKQEMCC4kN=hvpDMpc4bhw@mail.gmail.com> (raw)
In-Reply-To: <CAGXu5jK4wv2exKT3HnKG8TuHOWuDjKJx214y_q1QErg8djTQ9Q@mail.gmail.com>
On Tue, Aug 1, 2017 at 8:40 PM, Kees Cook <keescook@chromium.org> wrote:
>>
>> I don't know why this has turned up now. I have just left it broken
>> for now and would appreciate any fix.
>
> Thanks for the heads-up! I'm not sure why this suddenly appeared
> either, but Arnd has sent a patch for this now.
The main difference I see that can impact gcc's optimization steps is the
unreachable() that was there in BUG() but is absent in WARN().
It's possible that the compiler decided that the entire code path leading
up to the unreachable() couldn't happen, so it dropped the
__read_overflow2() call as well.
Arnd
next prev parent reply other threads:[~2017-08-01 20:44 UTC|newest]
Thread overview: 259+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-01 6:25 linux-next: build failure after merge of the akpm tree Stephen Rothwell
2017-08-01 18:40 ` Kees Cook
2017-08-01 20:44 ` Arnd Bergmann [this message]
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2022-03-07 10:55 Stephen Rothwell
2022-03-07 16:43 ` Johannes Weiner
2022-03-07 21:27 ` Stephen Rothwell
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2021-12-20 12:44 ` Muchun Song
2021-12-01 5:06 Stephen Rothwell
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2021-06-17 12:15 ` Muneendra Kumar M
2021-06-16 13:07 Stephen Rothwell
2021-06-18 8:24 ` Stephen Rothwell
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2020-12-03 12:48 ` Andrey Konovalov
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2020-11-14 1:14 ` Andrew Morton
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2020-09-28 11:29 ` Christoph Hellwig
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2020-04-22 18:33 ` Haren Myneni
2020-03-02 4:23 Stephen Rothwell
2020-02-27 4:11 Stephen Rothwell
2020-02-27 5:20 ` Arjun Roy
2020-02-27 9:02 ` Geert Uytterhoeven
2020-02-27 17:13 ` Arjun Roy
2020-02-27 17:44 ` Arjun Roy
2020-02-27 17:57 ` Geert Uytterhoeven
2020-02-27 18:50 ` Arjun Roy
2020-02-27 21:28 ` Stephen Rothwell
2020-02-28 0:34 ` Arjun Roy
2020-02-28 0:59 ` Stephen Rothwell
2020-02-27 21:27 ` Stephen Rothwell
2020-02-17 3:57 Stephen Rothwell
2020-02-17 4:12 ` Arjun Roy
2020-02-17 6:45 ` Arjun Roy
2020-02-20 23:18 ` Stephen Rothwell
2020-02-20 23:22 ` Arjun Roy
2020-02-20 23:43 ` Stephen Rothwell
2020-02-20 23:44 ` Arjun Roy
2020-02-20 23:59 ` Stephen Rothwell
2020-02-21 21:29 ` Arjun Roy
2020-02-26 4:02 ` Stephen Rothwell
2020-02-26 4:25 ` Arjun Roy
2020-01-22 7:05 Stephen Rothwell
2019-02-26 7:39 Stephen Rothwell
2019-02-26 8:16 ` Mike Rapoport
2018-12-03 7:00 Stephen Rothwell
2018-12-03 10:37 ` Anshuman Khandual
2018-12-12 17:05 ` Anshuman Khandual
2018-12-12 20:44 ` Stephen Rothwell
2018-11-30 5:30 Stephen Rothwell
2018-11-30 10:27 ` Anshuman Khandual
2018-10-08 8:03 Stephen Rothwell
2018-10-15 7:14 ` Stephen Rothwell
2018-10-16 7:46 ` Ingo Molnar
2018-10-05 6:14 Stephen Rothwell
2018-10-05 12:02 ` Michael Ellerman
2018-10-05 12:46 ` Stephen Rothwell
2018-10-06 12:10 ` Michael Ellerman
2018-10-02 8:53 Stephen Rothwell
2018-03-21 8:17 Stephen Rothwell
2018-03-21 10:02 ` Greg Kroah-Hartman
2018-03-21 10:38 ` Stephen Rothwell
2017-11-06 6:55 Stephen Rothwell
2017-06-30 6:32 Stephen Rothwell
2017-07-03 8:14 ` Stephen Rothwell
2017-07-03 8:57 ` David Miller
2017-06-26 6:53 Stephen Rothwell
2017-06-26 7:13 ` Michal Hocko
2017-06-26 21:48 ` Stephen Rothwell
2017-04-20 6:18 Stephen Rothwell
2017-04-18 8:09 Stephen Rothwell
2017-04-10 7:51 Stephen Rothwell
2017-03-20 5:37 Stephen Rothwell
2017-03-20 13:07 ` Michal Hocko
2017-03-20 13:22 ` Jaegeuk Kim
2017-03-07 3:07 Stephen Rothwell
2017-03-07 3:55 ` Laura Abbott
2017-03-07 2:38 Stephen Rothwell
2017-01-09 4:09 Stephen Rothwell
2015-12-31 12:22 Stephen Rothwell
2016-01-14 4:15 ` Stephen Rothwell
2016-01-15 21:05 ` Andrew Morton
2016-01-15 23:00 ` Stephen Rothwell
2016-01-15 23:14 ` Andrew Morton
2016-01-16 8:51 ` Takashi Iwai
2016-01-20 14:09 ` Takashi Iwai
2016-01-20 20:38 ` Stephen Rothwell
2016-01-22 0:24 ` Stephen Rothwell
2016-01-22 2:40 ` Stephen Rothwell
2016-01-25 9:29 ` Takashi Iwai
2016-01-25 9:40 ` Michael Ellerman
2016-01-25 10:19 ` Takashi Iwai
2016-01-25 10:41 ` Vinod Koul
2016-01-25 10:42 ` Takashi Iwai
2016-01-25 10:45 ` Sudip Mukherjee
2016-01-25 11:03 ` Takashi Iwai
2016-01-25 11:18 ` Sudip Mukherjee
2016-01-25 11:41 ` Mark Brown
2016-01-25 13:10 ` Takashi Iwai
2016-01-25 13:45 ` Takashi Iwai
2016-01-25 13:55 ` Mark Brown
2016-01-26 12:47 ` Vinod Koul
2016-01-25 14:02 ` Sudip Mukherjee
2016-01-26 12:26 ` Vinod Koul
2016-01-26 20:51 ` Stephen Rothwell
2016-01-26 21:22 ` Takashi Iwai
2016-01-22 3:03 ` Stephen Rothwell
2015-11-01 16:29 Stephen Rothwell
2015-10-06 7:03 Stephen Rothwell
2015-09-08 4:53 Stephen Rothwell
2015-07-14 5:19 Stephen Rothwell
2015-06-25 8:00 Stephen Rothwell
2015-06-20 14:31 Stephen Rothwell
2014-11-06 8:36 Stephen Rothwell
2014-11-06 11:24 ` Thierry Reding
2014-11-06 11:30 ` Thierry Reding
2014-11-09 23:55 ` Stephen Rothwell
2014-08-26 7:18 Stephen Rothwell
2014-08-26 13:54 ` Don Zickus
2014-08-26 21:37 ` Stephen Rothwell
2014-07-16 8:26 Stephen Rothwell
2014-07-16 8:54 ` Michal Hocko
2014-03-06 8:22 Stephen Rothwell
2014-03-06 21:48 ` Andrew Morton
2014-03-07 0:57 ` Stephen Rothwell
2014-03-07 1:38 ` Andrew Morton
2014-03-07 17:05 ` Christoph Lameter
2014-03-07 21:08 ` Andrew Morton
2014-03-07 17:02 ` Christoph Lameter
2014-03-06 7:54 Stephen Rothwell
2013-09-25 1:06 Stephen Rothwell
2013-09-25 1:21 ` Timur Tabi
2013-09-25 20:26 ` Andrew Morton
2013-09-25 21:32 ` Hugh Dickins
2013-09-25 21:43 ` Andrew Morton
2013-10-02 8:53 ` Frederic Weisbecker
2013-07-16 5:18 Stephen Rothwell
2013-06-07 6:28 Stephen Rothwell
2013-06-07 7:26 ` Peng Tao
2013-06-07 7:52 ` Stephen Rothwell
2013-06-07 8:11 ` Peng Tao
2013-06-04 6:55 Stephen Rothwell
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2013-04-04 6:44 Stephen Rothwell
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2013-02-28 1:15 Stephen Rothwell
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2013-02-11 7:13 Stephen Rothwell
2013-02-11 12:04 ` Amir Vadai
2013-02-06 6:59 Stephen Rothwell
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2012-12-18 2:29 Stephen Rothwell
2012-12-18 10:10 ` Mel Gorman
2012-12-10 8:58 Stephen Rothwell
2012-12-10 8:54 Stephen Rothwell
2012-12-10 10:43 ` Ingo Molnar
2012-11-09 3:39 Stephen Rothwell
2012-10-23 3:42 Stephen Rothwell
2012-10-23 4:21 ` Joe Perches
2012-10-23 19:44 ` Andrew Morton
2012-10-23 19:51 ` Joe Perches
2012-10-23 20:02 ` Andrew Morton
2012-10-24 19:19 ` Joe Perches
2012-10-24 19:38 ` Andrew Morton
2012-10-23 3:35 Stephen Rothwell
2012-09-28 6:30 Stephen Rothwell
2012-09-28 15:19 ` Mikulas Patocka
2012-10-01 19:56 ` Andrew Morton
2012-09-27 7:43 Stephen Rothwell
2012-09-26 6:01 Stephen Rothwell
2012-09-26 20:15 ` Kees Cook
2012-09-26 20:33 ` Andrew Morton
2012-09-26 20:42 ` Kees Cook
2012-09-26 20:47 ` Andrew Morton
2012-09-27 7:26 ` Stephen Rothwell
2012-09-24 14:02 Stephen Rothwell
[not found] ` <20120925000217.947b8cd8dca6979bfedee2ca-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>
2012-09-24 19:36 ` Roland Dreier
2012-09-24 19:46 ` Andrew Morton
2012-09-25 8:27 ` Jack Morgenstein
2012-09-21 6:26 Stephen Rothwell
2012-09-21 9:02 ` Denys Vlasenko
2012-09-21 6:08 Stephen Rothwell
2012-09-13 7:44 Stephen Rothwell
2012-09-13 7:49 ` Sachin Kamat
2012-09-13 8:31 ` Stephen Rothwell
2012-09-13 7:56 ` Andrew Morton
2012-09-13 8:31 ` Stephen Rothwell
2012-09-13 23:07 ` Stephen Rothwell
2012-09-13 8:46 ` Zhang Rui
2012-09-13 12:30 ` Stephen Rothwell
2012-08-06 3:43 Stephen Rothwell
2012-08-06 5:01 ` Michel Lespinasse
2012-08-06 5:04 ` Michel Lespinasse
2012-08-06 9:46 ` Steven Whitehouse
2012-07-31 4:40 Stephen Rothwell
2012-07-31 5:45 ` Michel Lespinasse
2012-07-31 6:31 ` Stephen Rothwell
2012-07-31 10:34 ` Michel Lespinasse
2012-06-25 6:41 Stephen Rothwell
2012-06-25 16:40 ` Kees Cook
2012-06-25 22:59 ` Stephen Rothwell
2012-04-27 5:38 Stephen Rothwell
2012-02-28 5:58 Stephen Rothwell
2012-02-28 12:00 ` Mark Brown
2012-02-28 22:08 ` Andrew Morton
2012-02-29 10:13 ` Mark Brown
2012-02-27 6:21 Stephen Rothwell
2012-02-27 6:31 ` H. Peter Anvin
2012-02-22 5:08 Stephen Rothwell
2012-02-17 5:21 Stephen Rothwell
2012-01-05 7:29 Stephen Rothwell
2012-01-05 23:52 ` Andrew Morton
2012-01-06 5:05 ` Greg KH
2012-01-06 7:22 ` Mike Galbraith
2012-01-05 7:29 Stephen Rothwell
2012-01-05 23:19 ` Greg KH
2012-01-05 23:45 ` Andrew Morton
2012-01-06 5:04 ` Greg KH
2011-12-16 5:39 Stephen Rothwell
2011-12-16 22:00 ` Andrew Morton
2011-12-17 17:49 ` Alexey Dobriyan
2011-12-18 22:43 ` Stephen Rothwell
2011-12-09 5:08 Stephen Rothwell
2011-12-09 5:47 ` Andrew Morton
2011-12-12 4:26 ` Stephen Rothwell
2011-12-12 4:41 ` Stephen Rothwell
2011-11-01 8:57 Stephen Rothwell
2011-10-05 8:07 Stephen Rothwell
2011-09-30 5:32 Stephen Rothwell
2011-09-30 6:02 ` Andrew Morton
2011-10-04 7:44 ` Stephen Rothwell
2011-09-28 9:22 Stephen Rothwell
2011-09-28 15:51 ` Joe Perches
2011-09-28 22:03 ` Andrew Morton
2011-09-16 6:21 Stephen Rothwell
2011-07-01 5:19 Stephen Rothwell
2011-07-01 5:32 ` Cong Wang
2011-07-01 7:08 ` Stephen Rothwell
2011-07-01 10:10 ` Cong Wang
2011-07-01 10:37 ` Stephen Rothwell
2011-07-04 1:30 ` Cong Wang
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