Indeterminism in tarlz's test suite

[Florian Schmaus]

Hi,

I maintain tarlz in Gentoo's user-maintained overlay ::guru. Recently 
Gentoo's automatic test mechanism reported that tarlz's test suite 
failed [1]. I was surprised by that, as it worked for me™. Turns out, 
the error occurs only sometimes. But I could easily reproduce it with

   while make check; do :; done

The output of the erroneous testsuite run is

testing tarlz-0.19...
testing --list and --extract...
testing --concatenate...
testing --create...
testing --diff...
testing --delete...
testing --dereference...
testing --append...
testing dirs and links...
testing long names...
testing bad input...tarlz: Exiting with failure status due to previous 
errors.
 1108(5)
testing --keep-damaged...
tests failed.
make: *** [Makefile:88: check] Error 1

As of now, I always observed the same exit condition: 1108(5). So line 
1108 iteration 5 in tarlz's check.sh script. That is

"${TARLZ}" -C dir2 -xf "${testdir}"/t155_fv${i}.tar.lz --permissive ||
        test_failed $LINENO $i

Unfortunately this is as far as I was able to approach the issue. I 
could not (yet) determine the root cause.

Any help would be appreciated. Thanks :)

- Florian

1: https://bugs.gentoo.org/783846

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