[Yum] Yet another "does the wrong thing on x86_64" problem

[Bryan O'Sullivan]

[Filed as Bugzilla bug 380.]  This is a weird one.

I'm using yum 2.1.11 and 2.1.12 - both show the same behaviour.

Systems are running FC3.  

I have python x86_64 installed, and when I ask yum to install mx (a
Python RPM), it insists on installing the i386 version.

        ~ $ rpm -q --queryformat '%{NAME} %{ARCH}\n' mx python
        package mx is not installed
        python x86_64

I have a set of repos defined in /etc/yum.repos.d.  They are the usuals:

        base		FC3 x86_64
        base-i386	FC3 i386
        updates		FC3 updates x86_64
        updates-i386	FC3 updates i386
        builds		local nightly builds of local software, no
        		dups of stuff in other repos
        bits		local random RPMs, no dups of stuff in
        		other repos

I want to install mx, which is a Python RPM for handling dates.  This
ships with FC3.  Now things get funny.

        ~ $ sudo yum -y install mx
        Setting up Install Process
        Setting up Repo:  updates-i386
        repomd.xml                100% |=========================|  951 B    00:00
        Setting up Repo:  builds
        repomd.xml                100% |=========================|  951 B    00:00
        Setting up Repo:  base
        repomd.xml                100% |=========================|  951 B    00:00
        Setting up Repo:  updates
        repomd.xml                100% |=========================|  951 B    00:00
        Setting up Repo:  base-i386
        repomd.xml                100% |=========================| 1.1 kB    00:00
        Setting up Repo:  bits
        repomd.xml                100% |=========================|  951 B    00:00
        Reading repository metadata in from local files
        updates-i3: ################################################## 407/407
        builds    : ################################################## 1760/1760
        updates   : ################################################## 438/438
        base-i386 : ################################################## 2622/2622
        bits      : ################################################## 15/15
        Resolving Dependencies
        --> Populating transaction set with selected packages. Please wait.
        ---> Package mx.i386 0:2.0.5-3 set to be installed
        --> Running transaction check
        
        Dependencies Resolved
        Transaction Listing:
          Install: mx.i386 0:2.0.5-3
        Downloading Packages:
        Running Transaction Test
        Finished Transaction Test
        Transaction Test Succeeded
        Running Transaction
        Installing: mx 100 % done 1/1
        
        Installed: mx.i386 0:2.0.5-3
        Complete!

Two things worth noticing here.  First is that the "base" repo doesn't
show up after the "Reading repository metadata in from local files"
line, even though it shows up in the prior section.

Next, yum has installed mx from the base-i386 repo.

I have exactarch=1 in /etc/yum.conf.

Any ideas?

	<b