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Re: Multiple as-installed test suite failures under different circumstances with 5.1-test-1

Hi Peter,

On Wed, Sep 09, 2015 at 03:39:02PM +0100, Peter Stephenson wrote:
> > ../../Test/E01options.ztst: test failed.
> > + fn:echo:2: write error: broken pipe
> > + fn:2: write error: inappropriate ioctl for device
> >...
> > I wonder if that's another case of a missing "2>/dev/null" like we
> > fixed a few before 5.1?
> OK, I suppose
>   echo hello | >foo
> in the case of SH_NULLCMD, which is equivalent to
>   echo hello | : >foo
> is indeed liable to the race in question, which is entirely benign for
> this test.  It shouldn't fail for the case where this is doing a cat,
> but the stdout test output already checks we picked that up, so
> suppressing the error looks reasonable.
> How about changing it to
>   { echo hello | >foo } 2>/dev/null
> ?  Is that good enough?

Looks fine and the two builds I did since then worked fine, too. Then
again, I can't really say since we saw this only once so far and
couldn't reproduce since then.

I'm keeping this now in the Debian package as a patch for while unless
you think it's good enough to be committed upstream anyways.

		Kind regards, Axel
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