我的生产环境经常抛出堆栈级别太深的错误。整个事情就是生活，你可以在这里看看：
http://88.198.198.46/pages/offers
第一次它可能会工作，但在第二次或第三次刷新后，您很可能会收到 500 错误。日志只说：
Started GET "/admin/students" for xx.xx.xx.xx at 2013-08-27 18:35:48 +0200
SystemStackError (stack level too deep):
actionpack (3.2.14) lib/action_dispatch/middleware/reloader.rb:70
而已。没有其他的。我的 gemfile.lock：
GIT
remote: git://github.com/engageis/activerecord-postgres-hstore.git
revision: 5dba5d773bff9eaf77d8126ce5ce67afcad9f548
specs:
activerecord-postgres-hstore (0.7.6)
activerecord (>= 3.1)
pg-hstore (>= 1.1.5)
rake
GEM
remote: https://rubygems.org/
specs:
Ascii85 (1.0.2)
actionmailer (3.2.14)
actionpack (= 3.2.14)
mail (~> 2.5.4)
actionpack (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
builder (~> 3.0.0)
erubis (~> 2.7.0)
journey (~> 1.0.4)
rack (~> 1.4.5)
rack-cache (~> 1.2)
rack-test (~> 0.6.1)
sprockets (~> 2.2.1)
activemodel (3.2.14)
activesupport (= 3.2.14)
builder (~> 3.0.0)
activerecord (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
arel (~> 3.0.2)
tzinfo (~> 0.3.29)
activeresource (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
activesupport (3.2.14)
i18n (~> 0.6, >= 0.6.4)
multi_json (~> 1.0)
addressable (2.3.5)
afm (0.2.0)
arel (3.0.2)
atomic (1.1.13)
bcrypt-ruby (3.0.1)
better_errors (0.9.0)
coderay (>= 1.0.0)
erubis (>= 2.6.6)
binding_of_caller (0.7.2)
debug_inspector (>= 0.0.1)
builder (3.0.4)
cache_digests (0.3.1)
actionpack (>= 3.2)
thread_safe
cancan (1.6.10)
capistrano (2.15.5)
highline
net-scp (>= 1.0.0)
net-sftp (>= 2.0.0)
net-ssh (>= 2.0.14)
net-ssh-gateway (>= 1.1.0)
capistrano-platform-resources (0.1.3)
capistrano (< 3)
capistrano-rbenv (1.0.5)
capistrano (< 3)
capistrano-platform-resources (>= 0.1.3)
capybara (2.1.0)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
carrierwave (0.9.0)
activemodel (>= 3.2.0)
activesupport (>= 3.2.0)
json (>= 1.7)
chronic (0.10.0)
coderay (1.0.9)
coffee-rails (3.2.2)
coffee-script (>= 2.2.0)
railties (~> 3.2.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.6.3)
commonjs (0.2.6)
cookiejar (0.3.0)
daemons (1.1.9)
dalli (2.6.4)
debug_inspector (0.0.2)
delayed_job (4.0.0)
activesupport (>= 3.0, < 4.1)
delayed_job_active_record (4.0.0)
activerecord (>= 3.0, < 4.1)
delayed_job (>= 3.0, < 4.1)
diff-lcs (1.2.4)
em-http-request (1.1.0)
addressable (>= 2.3.4)
cookiejar
em-socksify (>= 0.3)
eventmachine (>= 1.0.3)
http_parser.rb (>= 0.6.0.beta.2)
em-socksify (0.3.0)
eventmachine (>= 1.0.0.beta.4)
erubis (2.7.0)
eventmachine (1.0.3)
execjs (2.0.0)
factory_girl (4.2.0)
activesupport (>= 3.0.0)
factory_girl_rails (4.2.1)
factory_girl (~> 4.2.0)
railties (>= 3.0.0)
faye (0.8.9)
cookiejar (>= 0.3.0)
em-http-request (>= 0.3.0)
eventmachine (>= 0.12.0)
faye-websocket (>= 0.4.0)
rack (>= 1.0.0)
yajl-ruby (>= 1.0.0)
faye-websocket (0.6.3)
eventmachine (>= 0.12.0)
websocket-driver (>= 0.2.0)
haml (4.0.3)
tilt
hash-deep-merge (0.1.1)
hashery (2.1.1)
highline (1.6.19)
hike (1.2.3)
http_parser.rb (0.6.0.beta.2)
i18n (0.6.5)
journey (1.0.4)
jquery-fileupload-rails (0.4.1)
actionpack (>= 3.1)
railties (>= 3.1)
jquery-rails (3.0.4)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
jquery-ui-rails (4.0.4)
jquery-rails
railties (>= 3.1.0)
json (1.8.0)
kaminari (0.14.1)
actionpack (>= 3.0.0)
activesupport (>= 3.0.0)
launchy (2.3.0)
addressable (~> 2.3)
lazy_high_charts (1.4.3)
bundler (>= 1.0)
hash-deep-merge
less (2.3.2)
commonjs (~> 0.2.6)
less-rails (2.3.3)
actionpack (>= 3.1)
less (~> 2.3.1)
libv8 (3.16.14.3)
mail (2.5.4)
mime-types (~> 1.16)
treetop (~> 1.4.8)
mime-types (1.24)
mini_portile (0.5.1)
multi_json (1.7.9)
net-scp (1.1.2)
net-ssh (>= 2.6.5)
net-sftp (2.1.2)
net-ssh (>= 2.6.5)
net-ssh (2.6.8)
net-ssh-gateway (1.2.0)
net-ssh (>= 2.6.5)
nokogiri (1.6.0)
mini_portile (~> 0.5.0)
pdf-reader (1.3.3)
Ascii85 (~> 1.0.0)
afm (~> 0.2.0)
hashery (~> 2.0)
ruby-rc4
ttfunk
pg (0.16.0)
pg-hstore (1.2.0)
polyglot (0.3.3)
prawn (0.12.0)
pdf-reader (>= 0.9.0)
ttfunk (~> 1.0.2)
private_pub (1.0.3)
faye
rack (1.4.5)
rack-cache (1.2)
rack (>= 0.4)
rack-ssl (1.3.3)
rack
rack-test (0.6.2)
rack (>= 1.0)
rails (3.2.14)
actionmailer (= 3.2.14)
actionpack (= 3.2.14)
activerecord (= 3.2.14)
activeresource (= 3.2.14)
activesupport (= 3.2.14)
bundler (~> 1.0)
railties (= 3.2.14)
railties (3.2.14)
actionpack (= 3.2.14)
activesupport (= 3.2.14)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (>= 0.14.6, < 2.0)
rake (10.1.0)
rdoc (3.12.2)
json (~> 1.4)
redcarpet (3.0.0)
ref (1.0.5)
rspec-core (2.14.5)
rspec-expectations (2.14.2)
diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.14.3)
rspec-rails (2.14.0)
actionpack (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-core (~> 2.14.0)
rspec-expectations (~> 2.14.0)
rspec-mocks (~> 2.14.0)
ruby-rc4 (0.1.5)
sass (3.2.10)
sass-rails (3.2.6)
railties (~> 3.2.0)
sass (>= 3.1.10)
tilt (~> 1.3)
shoulda-matchers (2.3.0)
activesupport (>= 3.0.0)
simple_form (2.1.0)
actionpack (~> 3.0)
activemodel (~> 3.0)
spork (0.9.2)
sprockets (2.2.2)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
therubyracer (0.12.0)
libv8 (~> 3.16.14.0)
ref
thin (1.5.1)
daemons (>= 1.0.9)
eventmachine (>= 0.12.6)
rack (>= 1.0.0)
thor (0.18.1)
thread_safe (0.1.2)
atomic
tilt (1.4.1)
treetop (1.4.15)
polyglot
polyglot (>= 0.3.1)
ttfunk (1.0.3)
twitter-bootstrap-rails (2.2.6)
actionpack (>= 3.1)
execjs
railties (>= 3.1)
tzinfo (0.3.37)
uglifier (2.2.0)
execjs (>= 0.3.0)
multi_json (~> 1.0, >= 1.0.2)
underscore-rails (1.5.1)
websocket-driver (0.2.3)
whenever (0.8.4)
activesupport (>= 2.3.4)
chronic (>= 0.6.3)
xpath (2.0.0)
nokogiri (~> 1.3)
yajl-ruby (1.1.0)
PLATFORMS
ruby
DEPENDENCIES
activerecord-postgres-hstore!
bcrypt-ruby (~> 3.0.0)
better_errors
binding_of_caller
cache_digests
cancan
capistrano
capistrano-rbenv
capybara
carrierwave
coffee-rails
daemons
dalli
delayed_job_active_record
factory_girl_rails
haml
jquery-fileupload-rails
jquery-rails
jquery-ui-rails
kaminari
launchy
lazy_high_charts
less-rails
pg
prawn
private_pub
rails (= 3.2.14)
redcarpet
rspec-rails
sass-rails
shoulda-matchers
simple_form
spork
therubyracer
thin
twitter-bootstrap-rails (= 2.2.6)
uglifier
underscore-rails
whenever
当我尝试在我的 production.rb 中打开 cache.classes = true 时，我在第一次请求后立即收到堆栈级别太深的错误，但在不同的位置：
Started GET "/" for xx.xx.xx.xx at 2013-08-27 04:13:43 +0200
SystemStackError (stack level too deep):
activesupport (3.2.14) lib/active_support/callbacks.rb:409
即使对于目前不使用任何回调或任何过滤器的静态页面控制器也是如此。所以我不知道该怎么办。我还不如丢弃整个项目，因为它正遭受无法修复的错误。
开发工作得很好。没有错误。
我试过 ruby 2.0.0-p0, 2.0.0-p244, 1.9.3-p224, 1.9.3-p448 没有区别。我尝试升级/降级导轨，但没有成功。