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Bug #8374
closedrace condition when two threads require a gem
Description
=begin
Requiring a gem with a C extension seems to be not threadsafe.
Any one of the require lines below will frequently (but not always) cause an error like the following:
/usr/local/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in require': cannot load such file -- sqlite3 (LoadError) from /usr/local/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in
require'
from thread.rb:7:in `block (2 levels) in '
Using one thread avoids the problem.
ths = (1..2).map do
Thread.new do
require 'msgpack'¶
require 'yajl'¶
require 'sequel'¶
require 'nio4r'¶
require 'sqlite3'
end
end
ths.each {|th| th.join}
=end
Updated by nobu (Nobuyoshi Nakada) over 11 years ago
- Description updated (diff)
- Category set to lib
- Status changed from Open to Assigned
- Assignee set to drbrain (Eric Hodel)
Seems rubygems specific.
Updated by drbrain (Eric Hodel) over 11 years ago
- Subject changed from race condition when two threads require a gem with a C extension to race condition when two threads require a gem
This is reproducible without a C extension, updated subject.
Updated by drbrain (Eric Hodel) over 11 years ago
- Status changed from Assigned to Closed
This has been fixed in rubygems master and 2.0 branches.
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