when mashing the x86_64 it failed, but the i386 it not failed.

[peng chen]

The error information detailed as follow:
======================================
Traceback (most recent call last):
  File "/usr/bin/mash", line 82, in ?
    main()
  File "/usr/bin/mash", line 70, in main
    rc = themash.doMultilib()
  File "/usr/lib/python2.4/site-packages/mash/__init__.py", line 415, in
doMultilib
    pid = self.doDepSolveAndMultilib(arch, cachedir)
  File "/usr/lib/python2.4/site-packages/mash/__init__.py", line 361, in
doDepSolveAndMultilib
    yumbase.doTsSetup()
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 86, in
doTsSetup
    return self._getTs()
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 101, in
_getTs
    self._getTsInfo(remove_only)
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 112, in
_getTsInfo
    pkgSack = self.pkgSack
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 591, in
<lambda>
    pkgSack = property(fget=lambda self: self._getSacks(),
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 434, in
_getSacks
    self.repos.populateSack(which=repos)
  File "/usr/lib/python2.4/site-packages/yum/repos.py", line 251, in
populateSack
    sack.populate(repo, mdtype, callback, cacheonly)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 159, in
populate
    if self._check_db_version(repo, mydbtype):
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 216, in
_check_db_version
    return repo._check_db_version(mdtype)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 968, in
_check_db_version
    repoXML = self.repoXML
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1133, in
<lambda>
    repoXML = property(fget=lambda self: self._getRepoXML(),
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1129, in
_getRepoXML
    raise Errors.RepoError, msg
yum.Errors.RepoError: Cannot retrieve repository metadata (repomd.xml) for
repository: test-x86_64. Please verify its path and try again
mash failed in ./test
======================================================================================================
the directory ./test is my mash's workdir. from above error information, the
problem locates in the function '_getRepoXML ', but I can't see other
further more info.
so hope someone do me a favor!