I'm using SVN 1.1.1 on Fedora C2.

When I try to do an Update using Tortoise SVN, from a different PC than server, I get:
REPORT request failed on '/svn/repos/!svn/vcc/default'
REPORT of '/svn/repos/!svn/vcc/default': 400 Bad Request (http://loophole.domain.com)

I tried using https too:
REPORT request failed on '/svn/repos/!svn/vcc/default'
REPORT of '/svn/repos/!svn/vcc/default': 400 Bad Request (https://loophole.domain.com)

I also tried from the server shell: telnet localhost 80

Sent: REPORT /svn/repos/!svn/vcc/default
Apache log: 127.0.0.1 - - [08/Nov/2004:14:46:34 -0500] "REPORT /svn/repos/!svn/vcc/default" 401 1268 "-" "-"

Sent: REPORT /svn/repos/!svn/vcc/default HTTP/1.1
Apache log: 127.0.0.1 - - [08/Nov/2004:14:46:41 -0500] "REPORT /svn/repos/!svn/vcc/default HTTP/1.1" 400 318 "-" "-"

Sent: REPORT /svn/repos/!svn/vcc/default HTTP/1.0
Apache log: 127.0.0.1 - - [08/Nov/2004:14:46:53 -0500] "REPORT /svn/repos/!svn/vcc/default HTTP/1.0" 401 1268 "-" "-"

Looks like REPORT, when used with HTTP/1.1, gives a 400 instead of a 401 for some reason..?

Apache config:

LoadModule dav_svn_module modules/mod_dav_svn.so
LoadModule authz_svn_module modules/mod_authz_svn.so
[...]
<Location /svn/repos>
    AuthType Basic
    AuthName "Subversion repository"
    AuthUserFile /home/svn_repos/conf/htpasswd
    Require valid-user
    DAV svn
    SVNPath /home/svn_repos
</Location>