X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Fstored%2Fmount.c;h=98c3b80b3eb7780810439dd0af747f52aed2414e;hb=5c358307600ad7cd6983b8773f8d7dc1e7346c56;hp=2f292de2091c3d28fd4cd36e465ac069f61ee6ce;hpb=5dfc1f669ea6d5b83c3a32b0ac2bbe5d9d7afe8f;p=bacula%2Fbacula

diff --git a/bacula/src/stored/mount.c b/bacula/src/stored/mount.c
index 2f292de209..98c3b80b3e 100644
--- a/bacula/src/stored/mount.c
+++ b/bacula/src/stored/mount.c
@@ -474,7 +474,6 @@ void DCR::do_swapping(bool is_writing)
 {
    if (dev->must_unload()) {
       Dmsg1(100, "swapping: unloading %s\n", dev->print_name());
-      unload_autochanger(this, -1);
       release_volume();
       dev->clear_unload();
    }
@@ -486,12 +485,11 @@ void DCR::do_swapping(bool is_writing)
    if (dev->swap_dev) {
       if (dev->swap_dev->must_unload()) {
          if (dev->vol) {
-            dev->swap_dev->Slot = dev->vol->get_slot();
+            dev->swap_dev->set_slot(dev->vol->get_slot());
          }
-         Dmsg2(100, "Swap unloading slot=%d %s\n", dev->swap_dev->Slot, 
+         Dmsg2(100, "Swap unloading slot=%d %s\n", dev->swap_dev->get_slot(),
                dev->swap_dev->print_name());
          unload_dev(this, dev->swap_dev);
-         dev->Slot = -1;
       }
       if (dev->vol) {
          dev->vol->clear_swapping();
@@ -670,6 +668,8 @@ void DCR::mark_volume_not_inchanger()
  */
 void DCR::release_volume()
 {
+   unload_autochanger(this, -1);
+
    if (WroteVol) {
       Jmsg0(jcr, M_ERROR, 0, _("Hey!!!!! WroteVol non-zero !!!!!\n"));
       Dmsg0(190, "Hey!!!!! WroteVol non-zero !!!!!\n");
@@ -702,6 +702,44 @@ void DCR::release_volume()
    Dmsg0(190, "release_volume\n");
 }
 
+/*
+ *      Insanity check 
+ *
+ * Check to see if the tape position as defined by the OS is
+ *  the same as our concept.  If it is not, 
+ *  it means the user has probably manually rewound the tape.
+ * Note, we check only if num_writers == 0, but this code will
+ *  also work fine for any number of writers. If num_writers > 0,
+ *  we probably should cancel all jobs using this device, or 
+ *  perhaps even abort the SD, or at a minimum, mark the tape
+ *  in error.  Another strategy with num_writers == 0, would be
+ *  to rewind the tape and do a new eod() request.
+ */
+bool DCR::is_tape_position_ok()
+{
+   if (dev->is_tape() && dev->num_writers == 0) {
+      int32_t file = dev->get_os_tape_file();
+      if (file >= 0 && file != (int32_t)dev->get_file()) {
+         Jmsg(jcr, M_ERROR, 0, _("Invalid tape position on volume \"%s\"" 
+              " on device %s. Expected %d, got %d\n"), 
+              dev->VolHdr.VolumeName, dev->print_name(), dev->get_file(), file);
+         /* 
+          * If the current file is greater than zero, it means we probably
+          *  have some bad count of EOF marks, so mark tape in error.  Otherwise
+          *  the operator might have moved the tape, so we just release it
+          *  and try again.
+          */
+         if (file > 0) {
+            mark_volume_in_error();
+         }
+         release_volume();
+         return false;
+      }
+   }
+   return true;
+}
+
+
 /*
  * If we are reading, we come here at the end of the tape
  *  and see if there are more volumes to be mounted.