[sup-devel] Crash, getting "wrong id on nil" when loading new messages

[Eric Gerlach <eric+sup-devel@gerlach.ca>]

I get the following crash when loading more messages (at a certain
point).  I've created an issue for it (111), but I'd like some help
debugging this further.  I'm pretty sure it's caused by some sort of
problematic message in my Maildir, but I don't know which one.  I'm
pretty good with Ruby, but not so much with the sup codebase.

I've traced it down to ThreadIndexMode#update, particularly the part
where it calls t.first.id.  I've used ruby-debug to be able to isolate
the particular thread, and the thread has no children, but then I don't
quite know what to do from there.  How can I trace a thread object back
to its origins?

Help?

Cheers,

Eric

wrong id called on nil
/var/lib/gems/1.8/gems/sup-0.11/lib/sup.rb:19:in `id'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:226:in `update'
/var/lib/gems/1.8/gems/sup-0.11/lib/sup/hook.rb:55:in `sort_by'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:226:in `each'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:226:in `sort_by'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:226:in `update'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:224:in `synchronize'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:224:in `update'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:642:in
`__unprotected_load_n_threads'
(eval):12:in `load_n_threads'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:614:in
`load_n_threads_background'
/var/lib/gems/1.8/gems/sup-0.11/lib/sup.rb:74:in `reporting_thread'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:613:in
`load_n_threads_background'
/usr/lib/ruby/1.8/sup/modes/thread-index-mode.rb:684:in
`__unprotected_load_threads'
(eval):12:in `load_threads'
/var/lib/gems/1.8/gems/sup-0.11/lib/sup/mode.rb:59:in `send'
/var/lib/gems/1.8/gems/sup-0.11/lib/sup/mode.rb:59:in `handle_input'
/var/lib/gems/1.8/gems/sup-0.11/lib/sup/buffer.rb:279:in `handle_input'
/var/lib/gems/1.8/gems/sup-0.11/bin/sup:279
/var/lib/gems/1.8/bin/sup:19:in `load'
/var/lib/gems/1.8/bin/sup:19
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