This patch fixes a case of orphaned jobs (and possible deadlock)
 during pruning.
 Apply it to Bacula 2.4.3 (possibly earlier versions) with:

 cd <bacula-source>
 patch -p0 <2.4.3-orphaned-jobs.patch
 ./configure <your-options>
 make
 ...
 make install

Index: src/dird/ua_prune.c
===================================================================
--- src/dird/ua_prune.c	(revision 7949)
+++ src/dird/ua_prune.c	(working copy)
@@ -468,6 +468,7 @@
             break;
          }
       }
+      endeach_jcr(jcr);
       if (skip) {
          continue;
       }