[Bug 568468] [NEW] lucid server: mod_mem_cache with mod_dav_svn crashes apache for certain files

[Axel]

Public bug reported:

Binary package hint: apache2

On a lucid server we see apache segmentation faulting at a high rate.
This causes svn checkouts to fail depending on the client (e.g. on
Ubunut 9.10 subversion with neon as dav lib is okay, serf is not). I was
able to reproduce it with a minimal setup:

Using lucid from today, i.e. with
apache2.2-bin: 2.2.14-5ubuntu8
libapache2-svn: 1.6.6dfsg-2ubuntu1

with mods-enabled:
alias auth_basic authz_default authz_host cache dav dav_svn deflate info mem_cache mime

dav_svn.conf:
<Location /svn>
  DAV svn
  SVNParentPath /var/lib/svn
  SVNListParentPath on
  SVNPathAuthz off
</Location>

mem_cache.conf is untouched. I created an svn repo
/var/lib/svn/svn_memcache (see attachment). With some clients I cannot
check it out, it fails for bad.root segfaulting apache. wget
http://localhost/svn/svn_memcache/bad.root never succeeds.

If I disable mem_cache it works. (Yes, I know that we shouldn't have it
enabled for serving svn to begin with and I am thankful for mem_cache
pointing this out but that's not the point here :-)

Cheers, Axel.

** Affects: apache2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: mem-cache subversion svn

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lucid server: mod_mem_cache with mod_dav_svn crashes apache for certain files
https://bugs.launchpad.net/bugs/568468
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