Version 6.2.8.7

- Fixed bug in read-only rebuild when the logical size of the volume is an
  exact multiple of 821 4K blocks.

kvdo.spec

@@ -1,6 +1,6 @@
 %define spec_release 1
 %define kmod_name		kvdo
-%define kmod_driver_version	6.2.8.6
+%define kmod_driver_version	6.2.8.7
 %define kmod_rpm_release	%{spec_release}
 %define kmod_kernel_version	3.10.0-693.el7
 
@@ -96,5 +96,6 @@ rm -rf $RPM_BUILD_ROOT
 %{_usr}/src/%{kmod_name}-%{version}
 
 %changelog
-* Tue Dec 13 2022 - Red Hat VDO Team <[email protected]> - 6.2.8.6-1
-- Added a check for 0 length table line arguments.
+* Mon Feb 13 2023 - Red Hat VDO Team <[email protected]> - 6.2.8.7-1
+- Fixed bug in read-only rebuild when the logical size of the volume is an
+  exact multiple of 821 4K blocks.

vdo/Makefile

@@ -1,4 +1,4 @@
-VDO_VERSION = 6.2.8.6
+VDO_VERSION = 6.2.8.7
 
 VDO_VERSION_MAJOR = $(word 1,$(subst ., ,$(VDO_VERSION)))
 VDO_VERSION_MINOR = $(word 2,$(subst ., ,$(VDO_VERSION)))

vdo/base/referenceCountRebuild.c

@@ -16,7 +16,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  * 02110-1301, USA. 
  *
- * $Id: //eng/vdo-releases/aluminum/src/c++/vdo/base/referenceCountRebuild.c#6 $
+ * $Id: //eng/vdo-releases/aluminum/src/c++/vdo/base/referenceCountRebuild.c#7 $
  */
 
 #include "referenceCountRebuild.h"
@@ -417,6 +417,9 @@ static void rebuildFromLeaves(VDOCompletion *completion)
     .slot = rebuild->blockMap->entryCount % BLOCK_MAP_ENTRIES_PER_PAGE,
     .pbn  = findBlockMapPagePBN(rebuild->blockMap, rebuild->leafPages - 1),
   };
+  if (rebuild->lastSlot.slot == 0) {
+    rebuild->lastSlot.slot = BLOCK_MAP_ENTRIES_PER_PAGE;
+  }
 
   // Prevent any page from being processed until all pages have been launched.
   rebuild->launching = true;