# Rails 2.2.2 session is failing in pstore using file\_field\_tag

**URL:** <https://www.ruby-forum.com/t/rails-2-2-2-session-is-failing-in-pstore-using-file-field-tag/155265>\
**Category:** Rails\
**Created:** [December 9, 2008, 11:45pm UTC](https://www.ruby-forum.com/t/rails-2-2-2-session-is-failing-in-pstore-using-file-field-tag/155265 "2008-12-09T23:45:31Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Deeg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/a88e57/32.png) [@Deeg](https://www.ruby-forum.com/u/Deeg)\
**Post date:** [December 9, 2008, 11:45pm UTC](https://www.ruby-forum.com/t/rails-2-2-2-session-is-failing-in-pstore-using-file-field-tag/155265/1 "2008-12-09T23:45:31Z")

</div>

When I try to upload a file using the file\_field\_tag I get the  
following exception (top 10 lines in the stack shown):

/!\ FAILSAFE /!\ Tue Dec 09 17:11:12 -0500 2008  
Status: 500 Internal Server Error  
End of file reached  
/usr/local/lib/jruby-1.1.5/lib/ruby/1.8/pstore.rb:355:in `load' /usr/local/lib/jruby-1.1.5/lib/ruby/1.8/pstore.rb:355:in`load’  
/usr/local/lib/jruby-1.1.5/lib/ruby/1.8/pstore.rb:310:in  
`transaction' /usr/local/lib/jruby-1.1.5/lib/ruby/gems/1.8/gems/actionpack-2.2.2/ lib/action_controller/cgi_ext/session.rb:48:in`initialize’  
/usr/local/lib/jruby-1.1.5/lib/ruby/1.8/cgi/session.rb:273:in  
`initialize' /usr/local/lib/jruby-1.1.5/lib/ruby/gems/1.8/gems/actionpack-2.2.2/ lib/action_controller/cgi_ext/session.rb:19:in`initialize’  
/usr/local/lib/jruby-1.1.5/lib/ruby/gems/1.8/gems/actionpack-2.2.2/  
lib/action\_controller/cgi\_process.rb:94:in `session' /usr/local/lib/jruby-1.1.5/lib/ruby/gems/1.8/gems/actionpack-2.2.2/ lib/action_controller/cgi_process.rb:130:in`stale\_session\_check!’  
/usr/local/lib/jruby-1.1.5/lib/ruby/gems/1.8/gems/actionpack-2.2.2/  
lib/action\_controller/cgi\_process.rb:78:in `session’

The problem appears to be in the temp session file in RAILS/tmp/  
session; if I try to load it using Marshal::load(filename) I get a  
“Marshal data too short” error. I can store other values in the  
session without any problems. Any ideas on what I can do to get  
around this?

Rails 2.2.2  
Mongrel 1.1.5  
JRuby 1.1.5  
Ubuntu (hardy)

Much appreciated.