Seen on linux-image-4.15.0-44-generic and linux-image-4.15.0-45-generic. When /bin/login is exec'd by agetty it tries to read stdin and gets EAGAIN:
5640 write(2, "Password: ", 10) = 10 5640 read(0, 0x7ffcca86a7f0, 511) = -1 EAGAIN (Resource temporarily unavailable) ... 55640 write(2, "\n", 1) = 1 taking that as a failed login attempt it tries again: 55640 write(2, "hilbert login: ", 15) = 15 55640 read(0, 0x7ffcca86a160, 511) = -1 EAGAIN (Resource temporarily unavailable) eventually logging a failed login attempt reverting to linux-image-4.15.0-43-generic also fixes the problem -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1814261 Title: gpm prevents loging to the console: spurious “Enter” events seems inserted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gpm/+bug/1814261/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs