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
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https://bugs.launchpad.net/bugs/1814261
Title:
gpm prevents loging to the console: spurious “Enter” events seems
inserted
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