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Re: linux-next: build failure after merge of the tip tree

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On Wed, Dec 07, 2016 at 08:45:14AM +0100, Ingo Molnar wrote:

SNIP

> * Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> 
> > Hi all,
> > 
> > After merging the tip tree, today's linux-next build (powerpc64le perf)
> > failed like this:
> > 
> >   LINK     /home/sfr/next/perf/fixdep
> > /bin/sh: 1: /home/sfr/next/perf//fixdep: Permission denied
> > tools/build/Makefile.build:91: recipe for target '/home/sfr/next/perf/pmu-events/jevents.o' failed
> > 
> > $ ls -l /home/sfr/next/perf/fixdep
> > -rwxr-xr-x 1 sfr users 71104 Dec  7 12:26 /home/sfr/next/perf/fixdep
> > 
> > I am not sure what caused this, but redoing the build succeeded, so I
> > have just filed this report and left it for today.

this seems to be the rare race issue caused by missing fixdep dependency,
caused probably by recompiling of fixdep because of its change in the merge

Arnaldo already carries a fix for this in his latest perf/core, where
we moved the fixdep compilation on top of everything to kill any future
race due to missing fixdep dependency

thanks,
jirka

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linux-next: build failure after merge of the tip tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-12-07 02:40 +0100
  Re: linux-next: build failure after merge of the tip tree Ingo Molnar <mingo@kernel.org> - 2016-12-07 08:50 +0100
    Re: linux-next: build failure after merge of the tip tree Jiri Olsa <jolsa@redhat.com> - 2016-12-07 09:20 +0100
      Re: linux-next: build failure after merge of the tip tree Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-12-07 16:00 +0100
        Re: linux-next: build failure after merge of the tip tree Ingo Molnar <mingo@kernel.org> - 2016-12-07 20:00 +0100
          Re: linux-next: build failure after merge of the tip tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-12-07 21:50 +0100

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