Package: lintian Version: 2.83.0 Severity: normal It seems that lintian will get stuck with it on arm64. I've confirmed this on arm64. It may happen on other platform, but I don't know.
This issue does not occur on amd64. At first, I've faced it on arm64v8:focal cloud image, [1] but it seems that this issue is not specific to the image itself. [1] https://bugs.launchpad.net/cloud-images/+bug/1881217 Here is the reproducible steps: $ docker run -it arm64v8/debian:unstable # apt update # apt install -y lintian # lintian --help As a result, lintian does not show usage help. Here is the version about lintian: # dpkg -l | grep lintian ii lintian 2.83.0 all Debian package checker Additional information: It seems that IO::Async::Loop related code will stuck: # perl -d /usr/bin/lintian --help Loading DB routines from perl5db.pl version 1.55 Editor support available. Enter h or 'h h' for help, or 'man perldebug' for more help. main::(/usr/bin/lintian:55): }; DB<1> ^C IO::Async::Loop::Epoll::loop_once(/usr/share/perl5/IO/Async/Loop/Epoll.pm:187): 187: $self->post_wait; DB<1> T @ = DB::DB called from file '/usr/share/perl5/IO/Async/Loop/Epoll.pm' line 187 . = IO::Async::Loop::Epoll::loop_once(ref(IO::Async::Loop::Epoll)) called from file '/usr/share/perl5/IO/Async/Loop.pm' line 654 . = IO::Async::Loop::await(ref(IO::Async::Loop::Epoll), ref(IO::Async::Future)) called from file '/usr/share/perl5/Lintian/Util.pm' line 628 $ = Lintian::Util::safe_qx('nproc') called from file '/usr/share/perl5/Lintian/Internal/FrontendUtil.pm' line 123 @ = Lintian::Internal::FrontendUtil::default_parallel() called from file '/usr/share/lintian/commands/lintian.pm' line 93 $ = require '/usr/share/lintian/commands/lintian.pm' called from file '/usr/bin/lintian' line 36 . = eval {...} called from file '/usr/bin/lintian' line 36 . = main::__ANON__[/usr/bin/lintian:55]('/usr/share/lintian/commands/lintian.pm') called from file '/usr/bin/lintian' line 120 . = dplint::run_tool('/usr/bin/lintian', 'lintian') called from file '/usr/bin/lintian' line 299 . = dplint::main() called from file '/usr/bin/lintian' line 383 The trace log indicates that $loop->run_child will stuck at safe_qx /usr/share/perl5/Lintian/Util.pm: 608 my $loop = IO::Async::Loop->new; 609 my $future = $loop->new_future; 610 my $status; 611 612 $loop->run_child( 613 command => [@command], 614 on_finish => sub { 615 my ($pid, $exitcode, $stdout, $stderr) = @_; 616 $status = ($exitcode >> 8); 617 618 if ($status) { 619 my $message = "Command @command exited with status $status"; 620 $message .= ": $stderr" if length $stderr; 621 $future->fail($message); 622 return; 623 } 624 625 $future->done($stdout); 626 }); 627 628 $loop->await($future); 629 Regards,
