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Message-ID: <20180721234550.GB1691@dastard>
Date: Sun, 22 Jul 2018 09:45:50 +1000
From: Dave Chinner <david@...morbit.com>
To: Matthew Wilcox <willy@...radead.org>
Cc: Ross Zwisler <ross.zwisler@...ux.intel.com>,
kbuild test robot <lkp@...el.com>, kbuild-all@...org,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org, Christoph Hellwig <hch@....de>,
Dan Williams <dan.j.williams@...el.com>,
Jan Kara <jack@...e.cz>, linux-nvdimm@...ts.01.org
Subject: Re: [PATCH 1/5] radix tree test suite: fix mapshift build target
On Mon, Jul 16, 2018 at 07:41:32PM -0700, Matthew Wilcox wrote:
> On Mon, Jul 16, 2018 at 03:08:20PM -0600, Ross Zwisler wrote:
> > On Mon, Jul 16, 2018 at 12:52:49PM -0700, Matthew Wilcox wrote:
> > > On Mon, Jul 16, 2018 at 10:07:10AM -0600, Ross Zwisler wrote:
> > <>
> > > OK ... what version of make are you using? Because this works fine for me:
> > >
> > > $ git clone linux clean
> > > $ cd clean
> > > $ git checkout v4.17
> > > $ cd tools/testing/radix-tree/
> > > $ git revert 8d9fa88edd5e360b71765feeadb915d4066c9684
> > > $ make
> > >
> > > $ make --version
> > > GNU Make 4.1
> > > Built for x86_64-pc-linux-gnu
> > >
> > > It's Debian's Version: 4.1-9.1
> >
> > $ make --version
> > GNU Make 4.2.1
> > Built for x86_64-redhat-linux-gnu
> >
> > The one from Fedora 27.
>
> Huh. I just tried 4.2.1-1.1 from Debian unstable and that doesn't
> produce the problem either. I'm not sure how to proceed at this point.
> I'm really not a makefile expert.
This smells like a problem we just hit with make 4.2.1 in fedora 28
in fstests - the regex expanstion has been screwed up such that
things like [a-z] will match [A-Z] and other things as well. Debian
is unaffected, apparently fedora has a backport of stuff from the
as-yet-unreleased next version of make/glibc. See this thread:
https://www.spinics.net/lists/fstests/msg10200.html
Try setting LANG=C and seeing if the problem goes away....
Cheers,
Dave.
--
Dave Chinner
david@...morbit.com
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