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Add test with two kinds of file creation orders

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Data loss was identified in #7401 when many small files were copied.
This adds a reproducer for this bug and other similar ones: randomly
generate N files. Then, listing M of them by `ls -U` order, produce
those same files in a directory of the same name.

This triggers the bug consistently, provided N and M are large enough.
Here, N=2^16 and M=2^13.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <antonio.e.russo@gmail.com>
Closes #7411
This commit is contained in:
Antonio Russo
2018-04-30 13:45:47 -04:00
committed by Tony Hutter
parent 3f729907c8
commit c38d702330
4 changed files with 55 additions and 2 deletions
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tests/runfiles/linux.run
+1 -1
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@@ -499,7 +499,7 @@ tests = ['umount_001', 'umountall_001']
tags = ['functional', 'mount']
[tests/functional/mv_files]
tests = ['mv_files_001_pos', 'mv_files_002_pos']
tests = ['mv_files_001_pos', 'mv_files_002_pos', 'random_creation']
tags = ['functional', 'mv_files']
[tests/functional/nestedfs]