(virt)bdew@gw:/usr/src/tahoe/build2$ virt/bin/trial --random=123 --until-failure allmydata
Running tests shuffled with seed 123

Test Pass 1
allmydata.test.test_hashtree
  Incomplete
    test_create ...                                                        [OK]
    test_check ...                                                         [OK]
    test_depth_of ...                                                      [OK]
    test_needed_hashes ...                                                 [OK]
    test_large ...                                                         [OK]
  Complete
    test_needed_hashes ...                                                 [OK]
    test_create ...                                                        [OK]
    test_dump ...                                                          [OK]
allmydata.test.test_observer
  Observer
    test_lazy_oneshot ...                                                  [OK]
    test_oneshot ...                                                       [OK]
    test_observerlist ...                                                  [OK]
    test_oneshot_fireagain ...                                             [OK]
allmydata.test.test_codec
  T
    test_encode1 ...                                                       [OK]
    test_encode2 ...                                                       [OK]
    test_encode ...                                                        [OK]
allmydata.test.test_backupdb
  BackupDB
    test_fail ...                                                          [OK]
    test_basic ...                                                         [OK]
    test_check ...                                                         [OK]
    test_wrong_version ...                                                 [OK]
allmydata.test.test_iputil
  ListAddresses
    test_get_local_ip_for ...                                              [OK]
    test_list_async ...                                                    [OK]
allmydata.test.test_base62
  T
    test_odd_sizes ...                                                     [OK]
    test_ende_0x00 ...                                                     [OK]
    test_num_octets_that_encode_to_this_many_chars ...                     [OK]
    test_ende_0x01 ...                                                     [OK]
    test_ende_randstr ...                                                  [OK]
    test_ende_longrandstr ...                                              [OK]
    test_ende_0x000000 ...                                                 [OK]
    test_ende_0x010000 ...                                                 [OK]
    test_ende_0x0100 ...                                                   [OK]
allmydata.test.test_immutable
  Test
    test_download ...                                                      [OK]
    test_download_abort_if_too_many_missing_shares ...                     [OK]
    test_download_from_only_3_remaining_shares ...                         [OK]
    test_download_abort_if_too_many_corrupted_shares ...                   [OK]
    test_download_from_only_3_shares_with_good_crypttext_hash ...          [OK]
    test_test_code ...                                                     [OK]
allmydata.test.test_nevow
  Web
    test_read_default_css ...                                      [SUCCESS!?!]
allmydata.test.test_cli
  List
    test_list ...                                                          [OK]
  Help
    test_check ...                                                         [OK]
    test_put ...                                                           [OK]
    test_stats ...                                                         [OK]
    test_manifest ...                                                      [OK]
    test_ln ...                                                            [OK]
    test_get ...                                                           [OK]
    test_rm ...                                                            [OK]
    test_deep_check ...                                                    [OK]
    test_add_aliases ...                                                   [OK]
    test_webopen ...                                                       [OK]
    test_backup ...                                                        [OK]
    test_mv ...                                                            [OK]
    test_create_alias ...                                                  [OK]
  Backup
    test_exclude_options ...                                               [OK]
    test_backup ...                                                        [OK]
  CLI
    test_dump_cap_directory ...                                            [OK]
    test_catalog_shares_error ...                                          [OK]
    test_dump_cap_chk ...                                                  [OK]
    test_dump_cap_ssk ...                                                  [OK]
    test_alias ...                                                         [OK]
    test_options ...                                                       [OK]
    test_dump_cap_lit ...                                                  [OK]
  Cp
    test_dangling_symlink_vs_recursion ...                                 [OK]
    test_unicode_filename ...                                      [SUCCESS!?!]
    test_not_enough_args ...                                               [OK]
  Check
    test_check ...                                                      

(at this point it goes to 100% cpu and hangs)