get flood of warnings/errors when entering incomplete or incorrect command

[jwrightecs]

When I enter a command without all the required options, f.e.

karr move 1 in-progress

which requires --claim

I get the following in addition to the actual error message

Status 'in-progress' requires --claim                                                                                                                                                                                                                                      
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.                                                                                                                                                
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.                                                                                                                                                   
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.                                                                                                                                
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.      
....
Use of uninitialized value $regex in regexp compilation at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 125 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in string ne at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 137 during global destruction.
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.
Use of uninitialized value in delete at /usr/local/share/perl/5.34.0/FFI/CheckLib.pm line 299 during global destruction.
Deep recursion on subroutine "FFI::Platypus::TypeParser::Version1::parse" at /usr/local/lib/x86_64-linux-gnu/perl/5.34.0/FFI/Platypus/TypeParser/Version1.pm line 207 during global destruction.

perl 5.34, App::karr, Git::Libgit2, Alien::Libgit2, Git::Native, FFI::Platypus, FFI::CheckLib all at their latest versions

[Getty]

Fixed — thanks for the detailed report! This was a libgit2 re-entry during Perl's global destruction phase.

When a command died with a usage error (like karr move 1 in-progress without --claim), the still-armed SyncGuard was first reaped in global destruction, where its DESTROY ran a full push. By then Perl had already freed FFI::CheckLib's search tables and FFI::Platypus's type-parser globals, so the library search re-ran against undefined globals and the type parser recursed without bound — that's the warning flood you saw. (On a board with a configured remote it could get much worse than noisy: the recursion allocates around 700 MB/s, observed at 53 GB RSS.)

The fix has two layers:

• App::karr::Git now refuses every native operation while ${^GLOBAL_PHASE} is DESTRUCT — all native ops funnel through _repo/is_repo, so the whole class of teardown re-entry is capped, not just this one call site.
• SyncGuard::DESTROY reports instead of pushing in that phase, and only when the process actually wrote refs (tracked in a package scalar, since reading a blessed object during teardown is a coin flip).

It's in the current codebase and will ship with the next release (0.500). If you still see any warnings after updating, please reopen or comment here.