[darcs-devel] ssh hangs

[Eric Y. Kow]

On Sun, Mar 04, 2007 at 08:01:16 -0800, David Roundy wrote:
> I've found that the ssh control master stuff causes ssh to hang even on
> linux.

Argh! (then again, that is an interesting data point.  Also, it really
seems to be related to the size of the repository, wrt # of patches)

> I'm leaning towards the idea of making it default to off.

Sigh.  I don't have time to fix ssh, so I guess I will submit a patch to
add an --enable-ssh-cm flag to sit alongside the --disable-ssh-cm.

> Incidentally, while darcs doesn't hang if I execute it with
> --disable-ssh-cm, it still seems to start the control-master process.
> 
> $ ps ax -u droundy  | grep 'ssh roundyd'
>  5803 ?        Ss     0:00 ssh roundyd at app.science.oregonstate.edu -S /tmp//darcs-ssh/roundyd at app.science.oregonstate.edu -N -f -M
> 
> Why is that?

It shouldn't do that.  Is there any chance it's left over from a
previous darcs run?

This bit of code should prevent it from launching:
    when (not hasLaunchedCm && not sshControlMasterDisabled) $
          launchSSHControlMaster remoteAddr

But maybe sshControlMasterDisabled is somehow unset?

-- 
Eric Kow                     http://www.loria.fr/~kow
PGP Key ID: 08AC04F9         Merci de corriger mon français.
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