subversion / dav_svn_module : Fatal error 'Recurse on a private mutex.'

[Mel Flynn]

On Tuesday 12 May 2009 12:10:58 Olivier Mueller wrote:
> Hello,
>
> I have a strange situation on our internal svn server. Since a few days
> and some upgrades, if I try to access a new created repository via
> apache, I get a blank page and this error in the apache error log:
>
> ==> /var/log/httpd/httpd-error.log <==
> Fatal error 'Recurse on a private mutex.' at line 986 in file
> /usr/src/lib/libpthread/thread/thr_mutex.c (errno = 86) [Tue May 12
> 11:56:02 2009] [notice] child pid 64353 exit signal Abort trap (6)
>
>
> The only difference between both repositories is the db/format file:
>
> diff -r repos/websites/testing/db/format repos/websites/testing2/db/format
> 1c1
> < 4
> ---
>
> > 3
>
> If format is "3" (subversion "pre-1.6"), everything works fine, but if
> the format is "4" the DAV/SVN part crashes (while everything remains
> fine via svn client / svnserve).

this is with the same binary? Meaning there's no Berkeley db library 
differences?
-- 
Mel