我将rails应用程序升级到rails 3.1(rc4)，现在在activesupport中得到随机分段错误。这些故障发生在启动应用程序(rails)或运行测试(例如rake spec)时。奇怪的是：
- 有时一切顺利，不会出现分割错误
-
当故障发生时，它总是处于活动支持状态，但并不总是处于同一部分三种不同的输出见下文：
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/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc/lib/active_support/core_ext/class/attribute.rb:66：[BUG]分段故障-/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/模块/remove_method.rb:3：[BUG]分段故障
- /home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/模块/内省.rb:79：[BUG]分段故障
我不确定这个问题的根源是什么。有人知道吗？以下是上面显示的三个中第一个的完整日志：
$rails/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/calass/attribute.rb:88:[BUG]分段故障ruby 1.9.2p180(2011-02-18修订版30909)[x86_64-linux]--控制框架----------c： 0043 p:0076 s:0123 b:0123 l:000104 d:000122 EVAL/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/calass/attribute.rb:88c： 0042 p:----s:0121 b:0121 l:000120 d:000120饰面c： 0041 p:----s:0119 b:0119 l:000118 d:000118 CFUNC:class_evalc： 0040 p:0129 s:0113 b:0113 l:000104 d:000112 BLOCK/home/corne/.rvm/gems/ruby-1.9.2p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/class/attribute.rb:66c： 0039 p:----s:0110 b:0110 l:000109 d:000109饰面c： 0038 p:----s:0108 b:0108 l:000107 d:000107 CFUNC：每个c： 0037 p:0055 s:0105 b:0105 l:000104 d:000104 METHOD/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/class/attribute.rb:65c： 0036 p:0011 s:0100 b:0100 l:000e98 d:000099 BLOCK/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/abstract_controller/layouts.rb:168c： 0035 p:----s:0098 b:0098 l:000097 d:000097饰面c： 0034 p:----s:0096 b:0096 l:000095 d:000095 CFUNC:class_evalc： 0033 p:0169 s:0093 b:0093 l:000092 d:000092 METHOD/home/corne/.rvm/gems/ruby-1.9.2p180/gems/activesupport-3.1.0.rc4/lib/active_support/accept.rb:122c： 0032 p:----s:0089 b:0089 l:000088 d:000088饰面c： 0031 p:----s:0087 b:0087 l:000086 d:000086 CFUNC：包括c： 0030 p:0012 s:0083 b:0083 l:000074 d:000082 BLOCK/home/corne/.rvm/gems/ruby-1.9.2p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:226c： 0029 p:----s:0080 b:0080 l:000079 d:000079饰面c： 0028 p:----s:0078 b:0078 l:000077 d:000077 CFUNC:每个c： 0027 p:0276 s:0075 b:0075 l:000074 d:000074 CLASS/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:225c： 0026 p:0017 s:0073 b:0073 l:000072 d:000072 CLASS/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:169c： 0025 p:0021 s:0071 b:0071 l:000070 d:000070 TOP/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:3c： 0024 p:----s:0069 b:0069 l:000068 d:000068饰面c： 0023 p:0266 s:0067 b:0067 l:000066 d:000066 TOP/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/meta_search-1.1.0.pre/lib/meta_search.rb:59c： 0022 p:----s:0065 b:0065 l:000064 d:000064饰面c： 0021 p:----s:0063 b:0063 l:000062 d:000062 CFUNC:需要c： 0020 p:0026 s:0059 b:0059 l:000040 d:000058 BLOCK/home/corne/.rvm/gems/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:68c： 0019 p:----s:0056 b:0056 l:000055 d:000055饰面c： 0018 p:----s:0054 b:0054 l:000053 d:000053 CFUNC：每个c： 0017 p:0091 s:0051 b:0051 l:000040 d:000050 BLOCK/home/corne/.rvm/gems/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:66c： 0016 p:----s:0046 b:0046 l:000045 d:000045饰面c： 0015 p:----s:0044 b:00044 l:000043 d:000043 CFUNC：每个c： 0014 p:0046 s:0041 b:0041 l:000040 d:000040 METHOD/home/corne/.rvm/gems/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:55c： 0013 p:0021 s:0037 b:0037 l:000036 d:000036 METHOD/home/corne/.rvm/gems/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler.rb:120c： 0012 p:0079 s:0033 b:0033 l:000032 d:000032 TOP/home/corne/X/projecten/ProjectX/config/application.rb:7c： 0011 p:----s:0031 b:0031 l:000030 d:000030饰面c： 0010 p:----s:0029 b:0029 l:000028 d:000028 CFUNC:需要c： 0009 p:0016 s:0025 b:0025 l:000016 d:000024 BLOCK/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.10.rc4/lib/rails/commands.rb:52c： 0008 p:----s:0022 b:0022 l:000021 d:000021饰面c： 0007 p:----s:0020 b:0020 l:000019 d:000019 CFUNC:水龙头c： 0006 p:0721 s:0017 b:0017 l:000016 d:000016 TOP/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.10.rc4/lib/rails/commands.rb:49c： 0005 p:----s:0012 b:0012 l:000011 d:000011饰面c： 0004 p:----s:0010 b:0010 l:000009 d:000009 CFUNC:需要c： 0003 p:0061 s:0006 b:0006 l:001598 d:001a18 EVAL脚本/轨道：6c： 0002 p:----s:0004 b:0004 l:000003 d:000003饰面c： 0001 p:0000 s:0002 b:0002 l:001598 d:001598顶部-----------------------------Ruby级别的回溯信息----------------------------------------脚本/轨道：6:在"中script/rails:6:在"require"中/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.rc4/lib/rails/commands.rb:49:in"/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.rc4/lib/rails/commands.rb:49:in"tap"/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.rc4/lib/rails/commands.rb:52:in `block-in'/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.rc4/lib/rails/commands.rb:52:in"require"/home/corne/X/projecten/ProjectX/config/application.rb:7:在"中/主页/corne/.rvm/宝石/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler.rb:120:在"require"中/主页/corne/.rvm/宝石/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:在"require"中/主页/corne/.rvm/宝石/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:in"each"/主页/corne/.rvm/宝石/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:in"block-in-request"/主页/corne/.rvm/宝石/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:在"each"中/主页/corne/.rvm/宝石/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in"需要中的块(2个级别)"/主页/corne/.rvm/宝石/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in"require"/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/meta_search-1.1.0.pre/lib/meta_search.rb:59:in`'/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:3:in`'/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:169:在`'中/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:225：在`'中/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:225：在"each"中/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:226:in `block-in'/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/action_controller/base.rb:226:在`include'中/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/correct.rb:122:in `append_features'/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/corrence.rb:122:in"class_eval"/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.1.0.rc4/lib/abstract_controller/layouts.rb:168:in `block-in'/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/class/attribute.rb:65:in"class_attribute"/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/calass/attribute.rb:65:in `each'/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/class/attribute.rb:66:在"class_attribute中的块"中/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/calass/attribute.rb:66:在"class_eval"中/home/corne/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.1.0.rc4/lib/active_support/core_ext/class/attribute.rb:88:in"class_attribute中的块"--C级回溯信息-------------------------------------------/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_vm_bugfreport+0x5f)[0x7f09c4c8fcaf]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x5ff7e)[0x7f09c4b6ef7e]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_bug+0xa2)[0x7f09c4b6fea2]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1140f5)[0x7f09c4c230f5]/lib/x86_64-linux-gnu/libphread.so.0(+0xfc60)[0x7f09c4900c60]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(st_clear+0x43)[0x7f09c4c2ac83]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(st_free_table+0x9)[0x7f09c4c2acd9]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x7be87)[0x7f09c4b8ae87]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x7c6c8)[0x7f09c4b8b6c8]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17d0ad)[0x7f09c4c8c0ad]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_add_method+0x34)[0x7f09c4c8c844]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17db5a)[0x7f09c4c8cb5a]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17dc8c)[0x7f09c4c8cc]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17aaa6)[0x7f09c4c89aa6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1705ae)[0x7f09c4c7f5ae]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1769a3)[0x7f09c4c859a3]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x176d47)[0x7f09c4c85d47]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17b330)[0x7f09c4c8a330]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17aaa6)[0x7f09c4c89aa6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1705ae)[0x7f09c4c7f5ae]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1769a3)[0x7f09c4c859a3]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_yield+0x47)[0x7f09c4c8a977]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_ary_each+0x46)[0x7f09c4b3e4f6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17aaa6)[0x7f09c4c89aa6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1705ae)[0x7f09c4c7f5ae]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1769a3)[0x7f09c4c859a3]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17b1a5)[0x7f09c4c8a1a5]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17b23e)[0x7f09c4c8a23e]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17aaa6)[0x7f09c4c89aa6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1705ae)[0x7f09c4c7f5ae]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1769a3)[0x7f09c4c859a3]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x177c44)[0x7f09c4c86c44]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_funcall+0xc6)[0x7f09c4c878c6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x660a2)[0x7f09c4b750a2]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17aaa6)[0x7f09c4c89aa6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1705ae)[0x7f09c4c7f5ae]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1769a3)[0x7f09c4c859a3]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_yield+0x47)[0x7f09c4c8a977]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_ary_each+0x46)[0x7f09c4b3e4f6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x17aaa6)[0x7f09c4c89aa6]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1705ae)[0x7f09c4c7f5ae]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1769a3)[0x7f09c4c859a3]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_iseq_eval+0x1f0)[0x7f09c4c8ae90]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x69b26)[0x7f09c4b78b26]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_require_safe+0x6df)[0x7f09c4b7a08f]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_autoload_load+0xa5)[0x7f09c4c645a5]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x155621)[0x7f09c4c64621]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x16de4d)[0x7f09c4c7ce4d]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x16fc2c)[0x7f09c4c7ec2c]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x1769a3)[0x7f09c4c859a3]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_iseq_eval+0x1f0)[0x7f09c4c8ae90]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(+0x69b26)[0x7f09c4b78b26]/home/corne/.rvm/rubies/ruby-1.9.2-p180/lib/libuby.so.1.9(rb_require_safe+0x6df)[0x7f09c4b7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事实证明，design(1.3.4)和meta_search(1.1.0.pre)的组合导致了这些分割错误。禁用其中一个"解决"了问题。根本原因要么在这些宝石中，要么在红宝石本身。请参阅本期ruby。