Unknown channel 0

Matt Johnston matt at ucc.asn.au
Mon Mar 9 22:37:27 WST 2009


Do you know which SSH implementation Eclipse is using? I'll
take a look at what's going on. I wonder if perhaps it's
trying to use a channel that failed to open (or Dropbear's
sending a bad failure response).


On Mon, Mar 09, 2009 at 01:47:46PM +0100, Tom Deseyn wrote:
> Hello.
> I am trying to use the eclipse C/C++ Remote Debug facilities.
> Eclipse creates an ssh connection to the target to start gdbserver.
> Sometimes things fail, resulting in the output:
> authpriv.info dropbear[3322]: exit after auth (root): Unknown channel 0
> Martin Oberhuber (who is working on the Eclipse-side) suggested I was
> missing an SFTP server (see
> http://www.eclipse.org/newsportal/article.php?id=626&group=eclipse.dsdp.tm#626).
> In my first attempt to use openssh I got an error, because I did not
> add the sftp, which looked like this:
> auth.info sshd[2150]: subsystem request for sftp
> auth.info sshd[2150]: subsystem request for sftp failed, subsystem not found
> (note that, for my debugging purposes I don't need sftp, it is a
> different part of eclips trying to do the sftp)
> I guess openssh and dropbear are complaining about the same thing?
> The openssh-implementation however doesn't stop working at this point.
> It complains about the sftp-server, but Eclipse is still able to
> launch the gdbserver.
> It would be desirable if dropbear had the same behaviour.
> Kind Regards,
> Tom

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