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bug#7357: csplit: memory exhausted when using stdout / pipe instead of a
From: |
Jim Meyering |
Subject: |
bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file |
Date: |
Thu, 11 Nov 2010 10:36:03 +0100 |
Bob Proulx wrote:
> Jim Meyering wrote:
>> http://git.sv.gnu.org/cgit/coreutils.git/commit/?id=cf0fa2d930de1609
>>
>> Use seq, not `yes' to generate link target.
>> Otherwise, on systems (DJGPP) that emulate pipes using files,
>> this test would never complete, waiting for `yes' to terminate.
>>
>> diff --git a/tests/du/slink b/tests/du/slink
>> - name=`yes|tr '\n' y|head -c$len`
>> + name=`seq 1 $len|tr -c x y |head -c$len`
>>
>> Is DJGPP still relevant?
>> The last update of http://www.delorie.com/djgpp/ was in 2003.
>> Now, I'm tempted to leave your seq|head pipe there,
>> just to see if anyone notices.
>
> Is using files to emulate pipes even a valid operating model? I
> wouldn't have thought so. In which case any system like that is just
> insufficient to the task. Avoiding pipes just for such systems
> doesn't seem very productive to me.
>
> I would be inclined to have a test not for the program but for the
> operating system to ensure that the OS is sufficiently capable.
Precisely. That commit was over 7 years ago (mea culpa ;-).
Our testing practices/policies have evolved since then,
and the approach you and Pádraig suggest is definitely what
I prefer now. There are many examples of skipping tests on
less-capable systems.
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Blinker| David Hofstee, 2010/11/09
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Pádraig Brady, 2010/11/09
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Pádraig Brady, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Jim Meyering, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Pádraig Brady, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Jim Meyering, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Pádraig Brady, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Jim Meyering, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Pádraig Brady, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Bob Proulx, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file,
Jim Meyering <=
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Paul Eggert, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Eric Blake, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Paul Eggert, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Jim Meyering, 2010/11/11
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Voelker, Bernhard, 2010/11/11
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Jim Meyering, 2010/11/11
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Jim Meyering, 2010/11/10
- bug#7357: csplit: memory exhausted when using stdout / pipe instead of a file, Jim Meyering, 2010/11/10