diff --git a/kexec-tools-2.0.21-makedumpfile-Show-write-byte-size-in-report-messages.patch b/kexec-tools-2.0.21-makedumpfile-Show-write-byte-size-in-report-messages.patch
new file mode 100644
index 0000000..be89b54
--- /dev/null
+++ b/kexec-tools-2.0.21-makedumpfile-Show-write-byte-size-in-report-messages.patch
@@ -0,0 +1,59 @@
+From 0ef2ca6c9fa2f61f217a4bf5d7fd70f24e12b2eb Mon Sep 17 00:00:00 2001
+From: Kazuhito Hagio <k-hagio-ab@nec.com>
+Date: Thu, 4 Feb 2021 16:29:06 +0900
+Subject: [PATCH 09/12] [PATCH] Show write byte size in report messages
+
+Show write byte size in report messages.  This value can be different
+from the size of the actual file because of some holes on dumpfile
+data structure.
+
+  $ makedumpfile --show-stats -l -d 1 vmcore dump.ld1
+  ...
+  Total pages     : 0x0000000000080000
+  Write bytes     : 377686445
+  ...
+  # ls -l dump.ld1
+  -rw------- 1 root root 377691573 Feb  4 16:28 dump.ld1
+
+Note that this value should not be used with /proc/kcore to determine
+how much disk space is needed for crash dump, because the real memory
+usage when a crash occurs can vary widely.
+
+Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
+---
+ makedumpfile.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/makedumpfile-1.6.8/makedumpfile.c b/makedumpfile-1.6.8/makedumpfile.c
+index fcd766b..894c88e 100644
+--- a/makedumpfile-1.6.8/makedumpfile.c
++++ b/makedumpfile-1.6.8/makedumpfile.c
+@@ -48,6 +48,8 @@ char filename_stdout[] = FILENAME_STDOUT;
+ static unsigned long long	cache_hit;
+ static unsigned long long	cache_miss;
+ 
++static unsigned long long	write_bytes;
++
+ static void first_cycle(mdf_pfn_t start, mdf_pfn_t max, struct cycle *cycle)
+ {
+ 	cycle->start_pfn = round(start, info->pfn_cyclic);
+@@ -4715,6 +4717,8 @@ write_and_check_space(int fd, void *buf, size_t buf_size, char *file_name)
+ {
+ 	int status, written_size = 0;
+ 
++	write_bytes += buf_size;
++
+ 	if (info->flag_dry_run)
+ 		return TRUE;
+ 
+@@ -10002,6 +10006,7 @@ print_report(void)
+ 	REPORT_MSG("Memory Hole     : 0x%016llx\n", pfn_memhole);
+ 	REPORT_MSG("--------------------------------------------------\n");
+ 	REPORT_MSG("Total pages     : 0x%016llx\n", info->max_mapnr);
++	REPORT_MSG("Write bytes     : %llu\n", write_bytes);
+ 	REPORT_MSG("\n");
+ 	REPORT_MSG("Cache hit: %lld, miss: %lld", cache_hit, cache_miss);
+ 	if (cache_hit + cache_miss)
+-- 
+2.29.2
+
diff --git a/kexec-tools.spec b/kexec-tools.spec
index ba3c247..1e6c99e 100644
--- a/kexec-tools.spec
+++ b/kexec-tools.spec
@@ -105,6 +105,7 @@ Patch604: ./kexec-tools-2.0.20-makedumpfile-printk-use-committed-finalized-state
 Patch605: ./kexec-tools-2.0.21-makedumpfile-make-use-of-uts_namespace.name-offset-in-VMCOR.patch
 Patch606: ./kexec-tools-2.0.21-makedumpfile-Add-dry-run-option.patch
 Patch607: ./kexec-tools-2.0.21-makedumpfile-Add-shorthand-show-stats-option.patch
+Patch608: ./kexec-tools-2.0.21-makedumpfile-Show-write-byte-size-in-report-messages.patch
 
 %description
 kexec-tools provides /sbin/kexec binary that facilitates a new
@@ -125,6 +126,7 @@ tar -z -x -v -f %{SOURCE19}
 %patch605 -p1
 %patch606 -p1
 %patch607 -p1
+%patch608 -p1
 
 %ifarch ppc
 %define archdef ARCH=ppc