Parallel testing

I tried running a smoke with harness3opts='j5' and got a load of
failures which I don't normally get. Is this expected behaviour at the
moment, or just another of the unique joys of Windows?


Failures: (common-args) -DINST_TOP=$(INST_DRV)\Smoke\doesntexist
[default] 
comp/multiline.t............................................FAILED
    5-6
../ext/Compress/Zlib/t/08encoding.t.........................FAILED
    17
    Bad plan.  You planned 29 tests but ran 17.
../ext/IO_Compress_Zlib/t/001zlib-generic-deflate.t.........FAILED
    9
    Bad plan.  You planned 49 tests but ran 9.
../ext/IO_Compress_Zlib/t/001zlib-generic-rawdeflate.t......FAILED
    9
    Bad plan.  You planned 49 tests but ran 9.
../ext/IO_Compress_Zlib/t/002any-deflate.t..................FAILED
    17
    Bad plan.  You planned 48 tests but ran 17.
../ext/IO_Compress_Zlib/t/005defhdr.t.......................FAILED
    556
    Bad plan.  You planned 595 tests but ran 556.
../ext/IO_Compress_Zlib/t/100generic-deflate.t..............FAILED
    40
../ext/IO_Compress_Zlib/t/100generic-rawdeflate.t...........FAILED
    40
../ext/IO_Compress_Zlib/t/105oneshot-gzip-only.t............FAILED
    4, 6, 8-10, 12-13
../ext/IO_Compress_Zlib/t/105oneshot-zip-only.t.............FAILED
    13, 24, 50, 54
../ext/IO_Compress_Zlib/t/107multi-deflate.t................FAILED
    15, 22
    Bad plan.  You planned 694 tests but ran 22.
../ext/IO_Compress_Zlib/t/107multi-gzip.t...................FAILED
    15
    Bad plan.  You planned 694 tests but ran 15.
../ext/IO_Compress_Zlib/t/107multi-rawdeflate.t.............FAILED
    15
    Bad plan.  You planned 694 tests but ran 15.
../ext/IO_Compress_Zlib/t/107multi-zip.t....................FAILED
    15
    Bad plan.  You planned 694 tests but ran 15.
../ext/IO_Compress_Zlib/t/109merge-deflate.t................FAILED
    Bad plan.  You planned 165 tests but ran 9.
../ext/IO_Compress_Zlib/t/109merge-gzip.t...................FAILED
    5, 7-8
    Bad plan.  You planned 165 tests but ran 9.
../ext/IO_Compress_Zlib/t/110encode-gzip.t..................FAILED
    Bad plan.  You planned 7 tests but ran 1.
../lib/CPANPLUS/t/03_CPANPLUS-Internals-Source.t............FAILED
    2-4, 30, 32-36, 38
../lib/CPANPLUS/t/04_CPANPLUS-Module.t......................FAILED
    1
../lib/CPANPLUS/t/07_CPANPLUS-Internals-Extract.t...........FAILED
    2-4
../lib/CPANPLUS/t/08_CPANPLUS-Backend.t.....................FAILED
    2-4, 6
../lib/CPANPLUS/t/20_CPANPLUS-Dist-MM.t.....................FAILED
    8-9
../lib/CPANPLUS/t/21_CPANPLUS-Dist-No-Build.t...............FAILED
    1
../lib/DBM_Filter/t/02core.t................................FAILED
    24, 35, 47, 61, 73, 85, 98, 111, 124, 137
    150, 177, 188
../lib/DBM_Filter/t/compress.t..............................FAILED
    12, 22
../lib/DBM_Filter/t/encode.t................................FAILED
    14, 25
../lib/DBM_Filter/t/int32.t.................................FAILED
    11, 21
../lib/DBM_Filter/t/null.t..................................FAILED
    11, 19, 25
../lib/ExtUtils/t/basic.t...................................FAILED
    6, 14-15, 17, 23-55, 57-59, 61-67, 69, 71-74
    76-77, 79-81
../lib/ExtUtils/t/fixin.t...................................FAILED
    6
../lib/ExtUtils/t/INST.t....................................FAILED
    3, 14-16, 19
../lib/ExtUtils/t/INST_PREFIX.t.............................FAILED
    Bad plan.  You planned 52 tests but ran 4.
../lib/ExtUtils/t/Install.t.................................FAILED
    Bad plan.  You planned 52 tests but ran 8.
../lib/ExtUtils/t/INSTALL_BASE.t............................FAILED
    3-19
../lib/ExtUtils/t/Installapi2.t.............................FAILED
    Bad plan.  You planned 70 tests but ran 16.
../lib/ExtUtils/t/pm.t......................................FAILED
    6
../lib/ExtUtils/t/postamble.t...............................FAILED
    4-6
../lib/ExtUtils/t/prereq.t..................................FAILED
    5
../lib/File/Find/t/find.t...................................FAILED
    3
    Bad plan.  You planned 103 tests but ran 3.
../lib/File/Find/t/taint.t..................................FAILED
    24
    Bad plan.  You planned 45 tests but ran 44.
../lib/FileCache/t/03append.t...............................FAILED
    1
../lib/Pod/t/basic.t........................................FAILED
    Bad plan.  You planned 11 tests but ran 6.
../lib/Pod/t/pod-parser.t...................................FAILED
    Bad plan.  You planned 3 tests but ran 1.
../lib/Pod/t/termcap.t......................................FAILED
    Bad plan.  You planned 2 tests but ran 1.
../lib/Test/Harness/t/prove.t...............................FAILED
    83, 112, 141, 170, 199, 228, 257, 286, 315
    344, 373, 402, 431, 460, 489, 518, 547
    576, 605, 634, 663, 692, 722, 752, 782
    812, 842, 872, 902, 932, 962, 992, 1022
    1052, 1082, 1112, 1142, 1172, 1202, 1232
    1262, 1292, 1322, 1352, 1382, 1412, 1442
    1472, 1503, 1534, 1565, 1596

• Parallel testing by Steve Hay
• Re: Parallel testing by Bram
• RE: Parallel testing by Steve Hay
• RE: Parallel testing by Bram
• Re: Parallel testing by Nicholas Clark
• Re: Parallel testing by Reini Urban