push problem for new repo on repo.or.cz

Hi there

I have problems pushing into a new project on repo.or.cz. My user (mjg) is added in the admin interface, the key is correct because I've been using it for a while already for other projects (forks though). I'm using a qualified refspec. What else could be wrong on my side, assuming it's not the scripts on repo.or.cz? My git is 1.6.2.

Michael

git  push  git+ssh://repo.or.cz/srv/git/conformal.git master:master
Counting objects: 14, done.
Delta compression using 2 threads.
Compressing objects: 100% (11/11), done.
Writing objects: 100% (14/14), 11.50 KiB, done.
Total 14 (delta 3), reused 0 (delta 0)
error: unpack failed: unpacker exited with error code
To git+ssh://repo.or.cz/srv/git/conformal.git
 ! [remote rejected] master -> master (n/a (unpacker error))
error: unable to create temporary sha1 filename ./objects/a3: Permission
denied

fatal: failed to write object error: failed to push some refs to 'git+ssh://repo.or.cz/srv/git/conformal.git'