Re: [ANNOUNCE] Git v2.21.0-rc1 (NonStop Results) - Good News

[Junio C Hamano <gitster@pobox.com>]

"Randall S. Becker" <rsbecker@nexbridge.com> writes:

>> > The current condition of the code is (the generate_zero_bytes delete
>> > was previously removed so can be ignored for the patch):
>> 
>> Just to make sure I do not misunderstand, this result is with Max's patch but
>> without the generate_zero_bytes stuff?
>
> Correct.

Thanks for a quick response.  I've been staring at b46221ff ("Merge
branch 'rb/no-dev-zero-in-test'", 2019-02-13).  IIUC, t5562 wouldn't
have passed if it still fed http-backend from /dev/zero, no?  The
shell redirection would have failed, so we do need to keep that part
of the change---i.e. in order to pass, we do need cc95bc20 ("t5562:
replace /dev/zero with a pipe from generate_zero_bytes", 2019-02-09)
and Max's "t5562: do not reuse output files", right?

I have been wondering about the whole /dev/zero business.  Although
we have b46221ff ("Merge branch 'rb/no-dev-zero-in-test'",
2019-02-13) in 'master', "git grep /dev/zero t" has hits in
t/helper/test-sha1.sh and t/t4152-am-resume-override-opts.sh, so it
must have been somewhat incomplete to help platforms that lack
/dev/zero in the first place.

We haven't heard from Dscho in European timezone, but I'm
inclined to

 - keep b46221ff in 'master', not reverted.
 - apply Max's "t5562: do not reuse output files"

to 'master' and hope that we can declare victory in this part of the
code ;-).  There may be fix-ups for other topics before -rc2 on top
of that, though.

>> Thanks, all.  Hopefully we can get this test failures behind us before -rc2;
>> knock, knock...
>
> Once the fix is integrated and in the usual spots, I can verify
> with haste. The full test cycle is now at 50 hours (argh), which I
> will rerun in full at rc2, but this one is fast.