Re: dav_fs: DSO load failed: AH00576: The DBM driver could not be loaded

[Karl Hiramoto <karl@xxxxxxxxxxxx>]

On 07/22/2013 02:25 PM, Jeff Trawick wrote:

On Mon, Jul 22, 2013 at 7:20 AM, Karl Hiramoto <karl@xxxxxxxxxxxx> wrote:

Hi,

I'm trying to use WebDav  and having some problems.    I'm using a self compiled  httpd 2.4.4  on a  arm board running linux 2.6.35

The error message is:
[Mon Jul 22 11:00:19.024300 2013] [dav_fs:crit] [pid 17398:tid 922301504] (20019)DSO load failed: AH00576: The DBM driver could not be loaded

I see this error message is in modules/dav/fs/dbm.c

I'm not really sure why it's tripping on that error though. I'm debugging it now.   I'm willing to try any suggestions or patches anyone has.

The dbm driver is an APR-util library for the DBM backend you're using (built-in == SDBM, Berkeley DB, etc.).  Use strace to look for failed open or stat calls to see where it is looking (maybe "strace -e open,stat -f /path/to/apachectl start).

 

Thanks for the tip.  It did show that it was looking for  apr_dbm_db-1.so.        So I recompiled   apr-util   adding  --with-dbm=db53 and --with-berkeley-db=<path>

The exact same error message shows in the apache error log,a strace does show    apr_dbm_db-1.so and  libdb   loading



[pid 30486] open("/www/pages/.htaccess", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 30486] open("/www/pages/files/.htaccess", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 30486] open("/www/pages/files/public/.htaccess", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 30486] open("/etc/apache2/passwd", O_RDONLY|O_CLOEXEC) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr_dbm_db-1.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr_dbm_db-1.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/www/pages/.htaccess", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 30486] open("/www/pages/files/.htaccess", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 30486] open("/www/pages/files/public/.htaccess", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 30486] open("/etc/apache2/passwd", O_RDONLY|O_CLOEXEC) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr_dbm_db-1.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr_dbm_db-1.so", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/apr-util-1/apr_dbm_db-1.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/usr/lib/libdb-5.3.so", O_RDONLY) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/www/pages/files/public/", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 12
[pid 30486] close(12)                   = 0
[pid 30486] open("/www/pages/files/public/.DAV/.locknull", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)