From: Michal Hocko <mhocko@kernel.org>
To: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: akpm@linux-foundation.org, mm-commits@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org, linux-next@vger.kernel.org,
sfr@canb.auug.org.au, broonie@kernel.org
Subject: Re: mmotm 2018-01-04-16-19 uploaded
Date: Fri, 5 Jan 2018 09:46:31 +0100 [thread overview]
Message-ID: <20180105084631.GG2801@dhcp22.suse.cz> (raw)
In-Reply-To: <7e35e16a-d71c-2ec8-03ed-b07c2af562f8@linux.vnet.ibm.com>
On Fri 05-01-18 12:13:17, Anshuman Khandual wrote:
> On 01/05/2018 05:50 AM, akpm@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2018-01-04-16-19 has been uploaded to
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for mm-of-the-moment:
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > This is a snapshot of my -mm patch queue. Uploaded at random hopefully
> > more than once a week.
> >
> > You will need quilt to apply these patches to the latest Linus release (4.x
> > or 4.x-rcY). The series file is in broken-out.tar.gz and is duplicated in
> > http://ozlabs.org/~akpm/mmotm/series
> >
> > The file broken-out.tar.gz contains two datestamp files: .DATE and
> > .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss,
> > followed by the base kernel version against which this patch series is to
> > be applied.
> >
> > This tree is partially included in linux-next. To see which patches are
> > included in linux-next, consult the `series' file. Only the patches
> > within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
> > linux-next.
> >
> > A git tree which contains the memory management portion of this tree is
> > maintained at git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git
>
> Seems like this latest snapshot mmotm-2018-01-04-16-19 has not been
> updated in this git tree. I could not fetch not it shows up in the
> http link below.
>
> https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git
I will update the tree today (WIP). This is not a fully automated
process and Andrew pushed his tree during my night ;) So be patient
please. My tree is non-rebasing which means I cannot just throw the old
tree away and regenerate it from scratch.
> The last one mmotm-2017-12-22-17-55 seems to have some regression on
> powerpc with respect to ELF loading of binaries (see below). Seems to
> be related to recent MAP_FIXED_SAFE (or MAP_FIXED_NOREPLACE as seen
> now in the code). IIUC (have not been following the series last month)
> MAP_FIXED_NOREPLACE will fail an allocation request if the hint address
> cannot be reserve instead of changing existing mappings.
Correct
> Is it possible
> that ELF loading needs to be fixed at a higher level to deal with these
> new possible mmap() failures because of MAP_FIXED_NOREPLACE ?
Could you give us more information about the failure please. Debugging
patch from http://lkml.kernel.org/r/20171218091302.GL16951@dhcp22.suse.cz
should help to see what is the clashing VMA.
Thanks
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2018-01-05 8:46 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-05 0:20 mmotm 2018-01-04-16-19 uploaded akpm
2018-01-05 6:43 ` Anshuman Khandual
2018-01-05 8:46 ` Michal Hocko [this message]
2018-01-07 6:49 ` Anshuman Khandual
2018-01-07 9:02 ` ppc elf_map breakage with MAP_FIXED_NOREPLACE (was: Re: mmotm 2018-01-04-16-19 uploaded) Michal Hocko
2018-01-07 11:26 ` Michael Ellerman
2018-01-08 3:02 ` ppc elf_map breakage with MAP_FIXED_NOREPLACE Anshuman Khandual
2018-01-08 22:12 ` Michael Ellerman
2018-01-09 11:48 ` Anshuman Khandual
2018-01-09 16:13 ` Michal Hocko
2018-01-11 10:08 ` Anshuman Khandual
2018-01-17 8:07 ` Michal Hocko
2018-01-23 11:25 ` Anshuman Khandual
2018-01-23 12:45 ` Michal Hocko
2018-01-23 15:58 ` Anshuman Khandual
2018-01-23 16:06 ` Michal Hocko
2018-01-24 5:09 ` Anshuman Khandual
2018-01-24 9:05 ` Michal Hocko
2018-01-26 12:34 ` Anshuman Khandual
2018-01-26 14:04 ` Michal Hocko
2018-01-29 2:47 ` Anshuman Khandual
2018-01-29 5:32 ` Anshuman Khandual
2018-01-29 13:22 ` Michal Hocko
2018-01-30 3:35 ` Michael Ellerman
2018-01-30 9:42 ` Michal Hocko
2018-01-31 5:05 ` Anshuman Khandual
2018-01-31 13:19 ` Michal Hocko
2018-02-01 3:13 ` Anshuman Khandual
2018-02-01 13:10 ` Michal Hocko
2018-02-01 13:40 ` Michal Hocko
2018-02-01 20:55 ` Kees Cook
2018-02-13 10:04 ` [RFC PATCH] elf: enforce MAP_FIXED on overlaying elf segments (was: Re: ppc elf_map breakage with MAP_FIXED_NOREPLACE) Michal Hocko
2018-02-14 16:30 ` Khalid Aziz
2018-02-01 13:48 ` ppc elf_map breakage with MAP_FIXED_NOREPLACE Michal Hocko
2018-02-01 21:06 ` Kees Cook
2018-02-12 14:48 ` Michal Hocko
2018-02-13 1:02 ` Anshuman Khandual
2018-02-13 6:49 ` Anshuman Khandual
2018-02-13 10:00 ` Michal Hocko
2018-01-05 12:14 ` mmotm 2018-01-04-16-19 uploaded Michal Hocko
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