Bug#868695: systemd: leaves empty LC_CTYPE what breaks X11 ssh password prompt

[Michael Biebl]

Am 17.07.2017 um 20:54 schrieb Robert Luberda:
> Package: systemd
> Version: 234-1
> Severity: critical
> Justification: breaks unrelated software
> 
> I usually login on tty1 via getty and then switch to X via startx.
> After recent upgrade of systemd  I can no longer ssh to any 
> host in  X11, because gpg-agent (which is used instead of ssh-agent) 
> fails to prompt for password, and the following error is shown instead:
> 
>  sign_and_send_pubkey: signing failed: agent refused operation
>  Permission denied (publickey).
> 
> strace -f on gpg-agent process showed me this:
> 
> [pid  1794] <... read resumed> "OPTION lc-ctype=", 1002) = 16
> [pid  1792] write(12, "\n", 1 <unfinished ...>
> [pid  1794] read(6,  <unfinished ...>
> [pid  1792] <... write resumed> )       = 1
> [pid  1794] <... read resumed> "\n", 986) = 1
> [pid  1792] read(9,  <unfinished ...>
> [pid  1794] write(10, "ERR 536871188 IPC syntax error <"..., 81) = 81
> [pid  1792] <... read resumed> "ERR 536871188 IPC syntax error <"..., 1002) = 81
> 
> 
> Yes, LC_CTYPE and other LC_ variables are empty, because they are set
> like this in /lib/systemd/system/getty at .service.
> Downgrading systemd to 233-10 solves the bug for me (even though
> getty at .service still contains the empty LC_ variables, but fortunatelly they 
> are not propagated to my terminals).

I'm not sure how the LC_*/LANG setting in getty at .service are relevant.
Can you please elaborate?

From what I understand, gpg-agent is started as a user service nowadays.

What does
systemctl --user show-environment
systemctl --user status gpg-agent.service
say?


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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