Re: bug#52410: "mv -T --backup=numbered hello world/" renameat2 infinite loop

[Paul Eggert]

On 12/10/21 02:22, Vincent Vermilya wrote:
> If DEST directory has a trailing slash in "mv -T --backup=numbered", mv
> gets stuck in an infinite loop. This does not happen without the trailing
> slash. strace shows renameat2 as the call that gets looped on.

Thanks for the bug report. This is due to a Gnulib bug, so I'm cc'ing 
bug-gnulib.

I installed the first three attached patches into Gnulib. The first one 
should fix the bug there, and the other two are refactoring cleanups.

I installed the last two attached patches into coreutils to propagate 
this fix into coreutils and add a regression test.

0001-backupfile-fix-numbered-backups-for-XXX.patch
Description: Text Data

0002-backupfile-prefer-signed-integers.patch
Description: Text Data

0003-backupfile-assume-C99-decls.patch
Description: Text Data

0001-build-update-gnulib-submodule-to-latest.patch
Description: Text Data

0002-mv-Bug-52410-fix.patch
Description: Text Data