Redmine

After upgrading to redmine version 1.2.1 from 1.1.3
opening projects with git repositories configured results in nginx error "gateway timeout",
and in a lot of messages in redmine log:

Resolving deltas: 100% (755/755), done.
remote: Counting objects: 2109, done.
remote: Compressing objects: 100% (2107/2107), done.
Receiving objects: 100% (2109/2109), 262.96 KiB, done.
remote: Total 2109 (delta 755), reused 3 (delta 0)
Resolving deltas: 100% (755/755), done.
remote: Counting objects: 2109, done.
remote: Compressing objects: 100% (2107/2107), done.
Receiving objects: 100% (2109/2109), 262.96 KiB, done.
remote: Total 2109 (delta 755), reused 3 (delta 0)
Resolving deltas: 100% (755/755), done.
remote: Counting objects: 2109, done.
...

output of them can long several minutes during first request to browse repo.
In small repositories with few files and commits - it works fine, but in others repos - hangs.

Ruby version              1.8.7 (x86_64-linux)
RubyGems version          1.3.7
Rack version              1.1
Rails version             2.3.11
Active Record version     2.3.11
Active Resource version   2.3.11
Action Mailer version     2.3.11
Active Support version    2.3.11
Edge Rails revision       unknown
Application root          /var/redmine/redmine
Environment               production
Database adapter          postgresql
Database schema version   20110511000000

About your Redmine plugins
Redmine Codebook plugin   0.3.1
ezFAQ plugin              0.3.5
Redmine Gitosis plugin    0.0.5