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Chgrp verbose prints unmapped gid #9929

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@cerdelen cerdelen commented Dec 30, 2025

chgrp with verbosity flag prints an empty string instead of the gid.

fix #9915

@cerdelen cerdelen changed the title Chgrp verbose Chgrp verbose prints unmapped gid Dec 30, 2025
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github-actions bot commented Dec 31, 2025

GNU testsuite comparison:

Skipping an intermittent issue tests/timeout/timeout (passes in this run but fails in the 'main' branch)
Congrats! The gnu test tests/shuf/shuf-reservoir is no longer failing!
Congrats! The gnu test tests/sort/sort-stale-thread-mem is no longer failing!
Note: The gnu test tests/printf/printf-surprise is now being skipped but was previously passing.

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github-actions bot commented Jan 1, 2026

GNU testsuite comparison:

Skip an intermittent issue tests/timeout/timeout (fails in this run but passes in the 'main' branch)

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github-actions bot commented Jan 1, 2026

GNU testsuite comparison:

Skip an intermittent issue tests/timeout/timeout (fails in this run but passes in the 'main' branch)
Note: The gnu test tests/tail/tail-n0f is now being skipped but was previously passing.

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cerdelen commented Jan 9, 2026

The problem is that the operation is not permitted for the user running on the Ubuntu machine/VM.
Can anyone help me how i could set up the test in a better way. I am not sure how to guard against this error. I thought if the gid == 0 this means the user would be root and would have permissions to change the group to 1337?

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chgrp: verbose "retained as" may print an empty group name for unmapped GIDs

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