Call for testing: OpenSSH 8.9

[Darren Tucker]

On Wed, 16 Feb 2022 at 00:48, chris <chris at cataclysmal.org> wrote:
[...]
> openssh-SNAP-20220215.tar.gz
> Haiku R1/beta3 hrev55181+63 (x86)
> gcc 11.2.0
[...]
> drop connection #1 from [127.0.0.1]:40281 on [127.0.0.1]:4242 past MaxStartups

This was the symptom we saw on Solaris and derivatives, which was
caused by the privileged sshd not being a process group leader and
thus the grace_alarm_handler fails to clean up the unprivileged
privsep child here:

grace_alarm_handler(int sig)
[...]
        if (getpgid(0) == getpid()) {
                ssh_signal(SIGTERM, SIG_IGN);
                kill(0, SIGTERM);
        }

On Solaris this was caused by skipping the setsid() call, but that was
removed in commit b306986, so probably there's another thing causing a
similar symptom.  Does Haiku implement the kill(0, ...) behaviour
specified by posix?  Does have a killpg?  Does it even have process
groups?

-- 
Darren Tucker (dtucker at dtucker.net)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860  37F4 9357 ECEF 11EA A6FA (new)
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.