Kmail searching issues

A year ago I figured that the email searching had finally turned the corner 
and was working reliably and well.  Since then something has changed as the 
results from a Kontact Edit->Find Messages has no resemblance to the search 
done in the folder.  The former brings up a bunch of mail none of which 
contain the search term while the latter bring up appropriate emails all 
containing the search term.  All I can figure is that the latter search is 
done physically against the email files and the former is using a corrupted 
index.

Deciding to repair the index I stopped everything with 'akonadictl stop', 
cleared the directory .local/share/baloo/email , reset .kde/share/config/
baloorc to contain initialIndexingDone=false under the [Akonadi] section and 
restarted.  It looked like indexing was running with occasional bursts of 
activity but after 14 days of running indexing the Edit->Find Messages was 
still not returning anything.

So I stopped and shut things down and restarted with akonadictl start.  This 
time I saw some results but not as many as expected and now the indexing 
didn't seem to be running anymore.  Stopping things and looking for problems 
with 'akonadictl fsck' isn't working (but worked a few minutes ago) as the 
command hangs (even after no other akonadi processes can be seen).

On starting I do see these errors:

akonadi_baloo_indexer(21083): "DatabaseLockError" "DatabaseLockError: Unable 
to get write lock on /home/russ/.local/share/baloo/email/: already locked" 
akonadi_baloo_indexer(21083): "DatabaseLockError" "DatabaseLockError: Unable 
to get write lock on /home/russ/.local/share/baloo/emailContacts/: already 
locked" 

even after stopping akonadi, clearing the 'flintlock' file from the directory 
and restarting, so it *looks* like there's more than one indexer running.  
Another anomaly is that I see the line:

QString AgentManager::agentInstanceType(const QString&) Agent instance with 
identifier "akonadi_baloo_indexer" does not exist

and

void AgentManager::removeAgentInstance(const QString&) Agent instance 
"akonadi_baloo_indexer" has no interface!
PreprocessorManager::unregisterInstance( "akonadi_baloo_indexer" )


early in the output, suggesting maybe some configuration error?

Any suggestions?

P.S.: I just tried to make sure that I was seeing all the log entries and 
stopped and restarted with akonadictl.  On the restart the final few lines 
are:

akonadi_baloo_indexer(21490): Could not obtain lock for Xapian Database. This 
is bad 
akonadi_baloo_indexer(21490): "DatabaseLockError" "DatabaseLockError: Unable 
to get write lock on /home/russ/.local/share/baloo/notes/: already locked" 
akonadi_baloo_indexer(21490): "DatabaseLockError" "DatabaseLockError: Unable 
to get write lock on /home/russ/.local/share/baloo/calendars/: already locked" 
akonadi_baloo_indexer(21490)/libakonadi: Unable to register service 
"org.freedesktop.Akonadi.Agent.akonadi_baloo_indexer" at dbus: "" 
KCrash: Application 'akonadi_baloo_indexer' crashing...
KCrash: Attempting to start /usr/lib/kde4/libexec/drkonqi from kdeinit
KCrash: Connect sock_file=/home/russ/.kde/socket-main/kdeinit4__0
Unable to start Dr. Konqi
Not forwarding the crash to Apport.