diff --git a/sysstat-8.0.4-procdisksts.patch b/sysstat-8.0.4-procdisksts.patch
new file mode 100644
index 0000000..616a620
--- /dev/null
+++ b/sysstat-8.0.4-procdisksts.patch
@@ -0,0 +1,50 @@
+diff -up sysstat-8.0.4/man/iostat.1.pom sysstat-8.0.4/man/iostat.1
+--- sysstat-8.0.4/man/iostat.1.pom	2008-12-05 11:12:36.000000000 +0100
++++ sysstat-8.0.4/man/iostat.1	2008-12-05 11:18:33.000000000 +0100
+@@ -445,7 +445,7 @@ Display the network filesystem (NFS) rep
+ .IP -h 
+ Display the NFS report more human readable.
+ .IP "-p [ { device | ALL } ]"
+-The -p option is exclusive of the -x option and displays statistics for
++The -p option displays statistics for 
+ block devices and all their partitions that are used by the system.
+ If a device name is entered on the command line, then statistics for it
+ and all its partitions are displayed. Last, the
+@@ -453,6 +453,8 @@ and all its partitions are displayed. La
+ keyword indicates that statistics have to be displayed for all the block
+ devices and partitions defined by the system, including those that have
+ never been used.
++Some kernels does not produce extended statistic for partitions so then 
++the combination of -p and -x options return an error. 
+ Note that this option works only with post 2.5 kernels.
+ .IP -t
+ Print the time for each report displayed. The timestamp format may depend
+diff -up sysstat-8.0.4/iostat.c.pom sysstat-8.0.4/iostat.c
+--- sysstat-8.0.4/iostat.c.pom	2008-12-05 11:12:36.000000000 +0100
++++ sysstat-8.0.4/iostat.c	2008-12-05 11:20:20.000000000 +0100
+@@ -733,8 +733,10 @@ void read_diskstats_stat(int curr, int f
+       }
+       else if (i == 7) {
+ 	 /* Partition */
+-	 if (DISPLAY_EXTENDED(flags) || (!dlist_idx && !DISPLAY_PARTITIONS(flags)))
+-	    continue;
++	 if (DISPLAY_EXTENDED(flags) || (!dlist_idx && !DISPLAY_PARTITIONS(flags))) {
++            fprintf(stderr, _("Your kernel does not produce data for partition extended statistics\n"));
++            exit(1); 
++         }
+ 
+ 	 sdev.rd_ios     = rd_ios;
+ 	 sdev.rd_sectors = rd_merges_or_rd_sec;
+@@ -1471,12 +1473,6 @@ int main(int argc, char **argv)
+        DISPLAY_UNFILTERED(flags))
+       flags |= I_D_DISK;
+ 
+-   /* Linux does not provide extended stats for partitions nor for NFS directories */
+-   if (DISPLAY_PARTITIONS(flags) && DISPLAY_EXTENDED(flags)) {
+-      fprintf(stderr, _("-x and -p options are mutually exclusive\n"));
+-      exit(1);
+-   }
+-
+    /* Ignore device list if '-p ALL' entered on the command line */
+    if (DISPLAY_PART_ALL(flags))
+       dlist_idx = 0;
diff --git a/sysstat.spec b/sysstat.spec
index d073503..5fece32 100644
--- a/sysstat.spec
+++ b/sysstat.spec
@@ -1,6 +1,6 @@
 Name: sysstat
 Version: 8.0.4
-Release: 5%{?dist}
+Release: 6%{?dist}
 Summary: The sar and iostat system monitoring commands
 License: GPLv2+
 Group: Applications/System
@@ -9,6 +9,7 @@ Source: http://perso.orange.fr/sebastien.godard/%{name}-%{version}.tar.bz2
 Patch0: sysstat-8.0.4-write.patch
 Patch1: sysstat-8.0.4-nfs_ext.patch
 Patch2: sysstat-8.0.4-cpu.patch
+Patch3: sysstat-8.0.4-procdisksts.patch
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n) 
 
@@ -27,6 +28,7 @@ activity.
 %patch0 -p1 -b .ret
 %patch1 -p1 -b .nfse
 %patch2 -p1 -b .cpu
+%patch3 -p1 -b .diskst
 iconv -f windows-1252 -t utf8 CREDITS > CREDITS.aux
 mv CREDITS.aux CREDITS
 
@@ -78,6 +80,9 @@ rm -rf %{buildroot}
 %{_localstatedir}/log/sa
 
 %changelog
+* Fri Dec  5 2008 Ivana Varekova <varekova@redhat.com> - 8.0.4-6
+- add /proc/diskstats reading patch
+
 * Mon Sep 22 2008 Ivana Varekova <varekova@redhat.com> - 8.0.4-5
 - Resolves: #463066 - Fix Patch0:/%%patch mismatch