FW: Git pulls failing on ia64 test tree?

I've had two complaints that people can't pull from my tree
on kernel.org.  Here's a snip from the errors.

 > $ git pull 
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git test
 > MOTD:
 > MOTD:   Welcome to the Linux Kernel Archive.
    ... MOTD trimmed ...
 > receiving file list ... done
 >
 > wrote 113 bytes  read 30799 bytes  20608.00 bytes/sec
 > total size is 82275235  speedup is 2661.60
 > * committish: 6c141f61ee4f5fba63d9c54e03cb2faa6877bf1a  refs/heads/test from 
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git
 > error: Could not read 9401c705f2a6a7e5df102f6443dba395c3c5e5a8
 > error: Could not read 357d596bd552ad157a906289ab13ea6ba7e66e3d
 > Updating from aa2dca4563b0629ecd9d9994dfdf39f29ff1b43f to 
6c141f61ee4f5fba63d9c54e03cb2faa6877bf1a.
 > fatal: failed to unpack tree object 6c141f61ee4f5fba63d9c54e03cb2faa6877bf1a
 > $

After the first complaint, I looked around and found out about
"git-update-server-info" (which I'd somehow missed).  So I ran
(on master.kernel.org):

  $ GIT_DIR=/pub/scm/linux/kernel/git/aegl/linux-2.6.git git-update-server-info

and I now have info/refs, info/rev-cache, and objects/info/packs files.

12 hours later, I got another complaint.

I've set up objects/info/alternates to point at linus' tree and deleted
all the packs from my tree.  The web view at kernel.org/git looks ok,
so I think those changes are ok.

So what am I missing?

-Tony