Call for testing: OpenSSH 6.6

Damien Miller djm at
Sat Mar 15 13:39:49 EST 2014

On Thu, 13 Mar 2014, Kevin Brott wrote:

> Running with the set -x in it shows it trying to run this
> command line:
> /usr/src/openssh/regress/sshd -f /usr/src/openssh/regress/sshd_config
> -E/usr/src/openssh/regress/ssh.log
> Yet, watching the process table during that part of make tests shows that
> command never actually executed, so the pidfile being tested for never
> materializes.
> Simply manually running that command  in another window while the test is
> waiting for the pidfile, gets past the failure and gets 'make tests' to
> cleanly finish to 'all tests passed'.
> So I'm not sure exactly what's going south here, it's almost as if it's not
> really running the command, or can't - but it's not throwing any errors as
> to why.

I installed CentOS 4.8 from some godforsaken mirror site and was able to
reproduce this - it turns out to be a race condition in the test itself:
adding a "sleep 1" after each "kill" statement makes the test pass.

We need a better way of handling this in the tests, perhaps polling for
sshd's pidfile being deleted.


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