diff --git a/kernel/fileobj.c b/kernel/fileobj.c
index 2d74f538..4f468633 100644
--- a/kernel/fileobj.c
+++ b/kernel/fileobj.c
@@ -557,10 +557,8 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 	struct fileobj *obj = to_fileobj(memobj);
 	int error = -1;
 	void *virt = NULL;
-	int npages;
 	uintptr_t phys = -1;
 	struct page *page;
-	struct pageio_args *args = NULL;
 	struct mcs_lock_node mcs_node;
 	int hash = (off >> PAGE_SHIFT) & FILEOBJ_PAGE_HASH_MASK;	
 
@@ -608,7 +606,6 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 		*physp = virt_to_phys(virt);
 		dkprintf("%s: MF_ZEROFILL: off: %lu -> 0x%lx resolved\n",
 				__FUNCTION__, off, virt_to_phys(virt));
-		virt = NULL;
 		goto out_nolock;
 	}
 
@@ -616,6 +613,7 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 	page = __fileobj_page_hash_lookup(obj, hash, off);
 	if (!page || (page->mode == PM_WILL_PAGEIO)
 			|| (page->mode == PM_PAGEIO)) {
+		struct pageio_args *args;
 		args = kmalloc(sizeof(*args), IHK_MC_AP_NOWAIT);
 		if (!args) {
 			error = -ENOMEM;
@@ -626,7 +624,7 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 		}
 
 		if (!page) {
-			npages = 1 << p2align;
+			int npages = 1 << p2align;
 
 			virt = ihk_mc_alloc_pages_user(npages, (IHK_MC_AP_NOWAIT |
 					((to_memobj(obj)->flags & MF_ZEROFILL) ?
@@ -638,6 +636,7 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 						"alloc failed. %d\n",
 						obj, off, p2align, virt_addr, physp,
 						error);
+				kfree(args);
 				goto out;
 			}
 			phys = virt_to_phys(virt);
@@ -666,8 +665,6 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 		proc->pgio_arg = args;
 
 		error = -ERESTART;
-		virt = NULL;
-		args = NULL;
 		goto out;
 	}
 	else if (page->mode == PM_DONE_PAGEIO) {
@@ -676,11 +673,11 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 	}
 	else if (page->mode == PM_PAGEIO_EOF) {
 		error = -ERANGE;
-		goto out;
+		goto pageio_error;
 	}
 	else if (page->mode == PM_PAGEIO_ERROR) {
 		error = -EIO;
-		goto out;
+		goto pageio_error;
 	}
 
 	ihk_atomic_inc(&page->count);
@@ -688,19 +685,22 @@ static int fileobj_get_page(struct memobj *memobj, off_t off,
 
 	error = 0;
 	*physp = page_to_phys(page);
-	virt = NULL;
 out:
 	mcs_lock_unlock(&obj->page_hash_locks[hash], &mcs_node);
 out_nolock:
-	if (virt) {
-		ihk_mc_free_pages_user(virt, npages);
-	}
-	if (args) {
-		kfree(args);
-	}
 	dkprintf("fileobj_get_page(%p,%lx,%x,%x,%p): %d %lx\n",
 			obj, off, p2align, virt_addr, physp, error, phys);
 	return error;
+
+pageio_error:
+	__fileobj_page_hash_remove(page);
+	virt = phys_to_virt(page_to_phys(page));
+	if (page_unmap(page)) {
+		ihk_mc_free_pages_user(virt, 1);
+		kfree(page);
+	}
+
+	goto out;
 }
 
 static int fileobj_flush_page(struct memobj *memobj, uintptr_t phys,
diff --git a/test/issues/1422/C1422.sh b/test/issues/1422/C1422.sh
new file mode 100755
index 00000000..347307a2
--- /dev/null
+++ b/test/issues/1422/C1422.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+USELTP=1
+USEOSTEST=1
+
+BOOTPARAM="-c 12-15 -m 512M@4"
+. ../../common.sh
+
+echo ""
+echo "*** get_rusage test"
+echo a > ./tmp
+BEFORE_STR=`./get_rusage 0 | grep "memory_stat_mapped_file"`
+$MCEXEC ./filemap_sigbus ./tmp
+AFTER_STR=`./get_rusage 0 | grep "memory_stat_mapped_file"`
+
+if [ "${BEFORE_STR}" == "${AFTER_STR}" ]; then
+	echo "TEST OK."
+else
+	echo "TEST NG."
+	echo "${BEFORE_STR}"
+	echo "${AFTER_STR}"
+fi
+
+rm -f ./tmp
+
+echo ""
+echo "*** LTP"
+# mmap01 - 09, 12 - 15
+for i in `seq -f "%02g" 1 1 9` `seq -f "%02g" 12 1 15` ; do
+	$MCEXEC $LTPBIN/mmap$i
+done
+
+echo ""
+echo "*** ostest, check ok"
+for i in 0 2 4 6 10 11 32 34 36 38 40 41 42 43 48 ; do
+	echo a > ./tmp
+	$MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp \
+		| grep "RESULT: ok" > /dev/null
+	if [ $? -eq 0 ] ; then
+		echo "[OK] mmap_file $i"
+	else
+		echo "[NG] mmap_file $i"
+	fi
+	rm -f ./tmp
+done
+
+echo ""
+echo "*** otest, check mmap error."
+for i in 8 9 `seq 16 1 31` ; do
+	echo a > ./tmp
+	$MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp \
+		| grep "RESULT: mmap error." > /dev/null
+	if [ $? -eq 0 ] ; then
+		echo "[OK] mmap_file $i"
+	else
+		echo "[NG] mmap_file $i"
+	fi
+	rm -f ./tmp
+done
+
+echo ""
+echo "*** oetest, check page fault"
+for i in 1 3 5 7 12 13 14 15 33 35 37 39 44 45 46 47 ; do
+	echo a > ./tmp
+	$MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+	if [ $? -eq 139 ] ; then
+		echo "[OK] mmap_file $i"
+	else
+		echo "[NG] mmap_file $i"
+	fi
+	rm -f ./tmp
+done
+
+rm -f core.* mccore-filemap_sigbus.* mccore-test_mck.*
+
diff --git a/test/issues/1422/Makefile b/test/issues/1422/Makefile
new file mode 100644
index 00000000..a2675230
--- /dev/null
+++ b/test/issues/1422/Makefile
@@ -0,0 +1,14 @@
+include $(HOME)/.mck_test_config.mk
+
+CFLAGS=-g -O0 -Wall -I$(MCK_DIR)/include
+LDFLAGS=-L$(MCK_DIR)/lib64 -lihk -Wl,-rpath=$(MCK_DIR)/lib64
+
+all:
+	$(CC) $(CFLAGS) $(LDFLAGS) get_rusage.c -o get_rusage
+	$(CC) $(CFLAGS) filemap_sigbus.c -o filemap_sigbus
+
+test: all
+	./C1422.sh
+
+clean:
+	rm -f get_rusage filemap_sigbus
diff --git a/test/issues/1422/README b/test/issues/1422/README
new file mode 100644
index 00000000..9f38cbb8
--- /dev/null
+++ b/test/issues/1422/README
@@ -0,0 +1,31 @@
+【Issue#1422 動作確認】
+□ テスト内容
+1. ファイルマップのEOFを超えたアクセスでSIGBUSが発生した場合に、
+   memory_stat_mapped_fileがマイナスにならないことを確認する。
+2. ファイルマップ機能が正常に動作することを、LTPの以下のテストで確認する。
+mmap01 mmap01
+mmap02 mmap02
+mmap03 mmap03
+mmap04 mmap04
+mmap05 mmap05
+mmap06 mmap06
+mmap07 mmap07
+mmap08 mmap08
+mmap09 mmap09
+mmap12 mmap12
+mmap13 mmap13
+mmap14 mmap14
+mmap15 mmap15
+3. ファイルマップ機能が正常に動作することを、ostestの mmap_fileで確認する。
+
+□ 実行手順
+$ make test
+
+McKernelのインストール先や、OSTEST, LTPの配置場所は、
+$HOME/.mck_test_config を参照している。
+.mck_test_config は、McKernelをビルドした際に生成されるmck_test_config.sample ファイルを
+$HOMEにコピーし、適宜編集する。
+
+□ 実行結果
+result.log を参照。
+すべての項目にPASSしていることを確認。
diff --git a/test/issues/1422/filemap_sigbus.c b/test/issues/1422/filemap_sigbus.c
new file mode 100644
index 00000000..305d4d06
--- /dev/null
+++ b/test/issues/1422/filemap_sigbus.c
@@ -0,0 +1,49 @@
+/* filemap_sigbus.c COPYRIGHT FUJITSU LIMITED 2019 */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+int main(int argc, char *argv[])
+{
+	int ret = -1;
+	int fd = -1;
+	int i = 0;
+	unsigned long *buf = NULL;
+	const long pgsize = sysconf(_SC_PAGESIZE);
+
+	if (argc != 2) {
+		printf("args invalid.\n");
+		ret = 0;
+		goto out;
+	}
+
+	fd = open(argv[1], O_RDWR);
+	if (fd == -1) {
+		perror("open");
+		goto out;
+	}
+
+	buf = (unsigned long *)mmap(0, 3 * pgsize, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE, fd, 0);
+	if (buf == MAP_FAILED) {
+		perror("mmap");
+		goto out;
+	}
+
+	/* Generate SIGBUS */
+	for (i = 0; i < 3 * pgsize / sizeof(unsigned long); i++) {
+		buf[i] = i;
+	}
+
+	munmap(buf, 3 * pgsize);
+
+	close(fd);
+
+	ret = 0;
+out:
+	return ret;
+}
diff --git a/test/issues/1422/get_rusage.c b/test/issues/1422/get_rusage.c
new file mode 100644
index 00000000..a9e0be72
--- /dev/null
+++ b/test/issues/1422/get_rusage.c
@@ -0,0 +1,109 @@
+/* get_rusage.c COPYRIGHT FUJITSU LIMITED 2019 */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ihklib.h>
+#include <ihk/ihk_rusage.h>
+
+static void usage(char *cmd)
+{
+	printf("Usage:\n");
+	printf("  %s <os_number>\n", cmd);
+}
+
+int main(int argc, char *argv[])
+{
+	int os_num = 0;
+	int ret = -1;
+	int i = 0;
+	int nonzero = 0;
+	struct ihk_os_rusage mck_rusage;
+
+	if (argc != 2) {
+		usage(argv[0]);
+		goto out;
+	}
+
+	os_num = atoi(argv[1]);
+	if (os_num < 0 || 63 < os_num) {
+		printf("Invalid argument 1 os_num.\n");
+		usage(argv[0]);
+		goto out;
+	}
+
+	memset(&mck_rusage, 0, sizeof(mck_rusage));
+	ret = ihk_os_getrusage(os_num, &mck_rusage, sizeof(mck_rusage));
+	if (ret) {
+		perror("ihk_os_getrusage()");
+		goto out;
+	}
+
+	printf("show rusage:\n");
+	nonzero = 0;
+	for (i = 0; i < IHK_MAX_NUM_PGSIZES; i++) {
+		if (mck_rusage.memory_stat_rss[i] != 0) {
+			printf("  memory_stat_rss[%d] : 0x%lx\n", i,
+				mck_rusage.memory_stat_rss[i]);
+			nonzero = 1;
+		}
+	}
+
+	if (nonzero == 0) {
+		printf("  memory_stat_rss is all 0x0\n");
+	}
+
+	nonzero = 0;
+	for (i = 0; i < IHK_MAX_NUM_PGSIZES; i++) {
+		if (mck_rusage.memory_stat_mapped_file[i] != 0) {
+			printf("  memory_stat_mapped_file[%d] : 0x%lx\n", i,
+				mck_rusage.memory_stat_mapped_file[i]);
+			nonzero = 1;
+		}
+	}
+
+	if (nonzero == 0) {
+		printf("  memory_stat_mapped_file is all 0x0\n");
+	}
+
+	printf("  memory_max_usage : 0x%lx\n", mck_rusage.memory_max_usage);
+	printf("  memory_kmem_usage : 0x%lx\n", mck_rusage.memory_kmem_usage);
+	printf("  memory_kmem_max_usage : 0x%lx\n",
+	       mck_rusage.memory_kmem_max_usage);
+
+	nonzero = 0;
+	for (i = 0; i < IHK_MAX_NUM_NUMA_NODES; i++) {
+		if (mck_rusage.memory_numa_stat[i] != 0) {
+			printf("  memory_numa_stat[%d] : 0x%lx\n", i,
+				mck_rusage.memory_numa_stat[i]);
+			nonzero = 1;
+		}
+	}
+
+	if (nonzero == 0) {
+		printf("  memory_numa_stat is all 0x0\n");
+	}
+
+	printf("  cpuacct_stat_system : 0x%lx\n",
+	       mck_rusage.cpuacct_stat_system);
+	printf("  cpuacct_stat_user : 0x%lx\n", mck_rusage.cpuacct_stat_user);
+	printf("  cpuacct_usage : 0x%lx\n", mck_rusage.cpuacct_usage);
+
+	nonzero = 0;
+	for (i = 0; i < IHK_MAX_NUM_CPUS; i++) {
+		if (mck_rusage.cpuacct_usage_percpu[i] != 0) {
+			printf("  cpuacct_usage_percpu[%d] : 0x%lx\n", i,
+				mck_rusage.cpuacct_usage_percpu[i]);
+			nonzero = 1;
+		}
+	}
+
+	if (nonzero == 0) {
+		printf("  cpuacct_usage_percpu is all 0x0\n");
+	}
+
+	printf("  num_threads : 0x%x\n", mck_rusage.num_threads);
+	printf("  max_num_threads : 0x%x\n", mck_rusage.max_num_threads);
+
+out:
+	return ret;
+}
diff --git a/test/issues/1422/result.log b/test/issues/1422/result.log
new file mode 100644
index 00000000..09fce192
--- /dev/null
+++ b/test/issues/1422/result.log
@@ -0,0 +1,105 @@
+cc -g -O0 -Wall -I/root/mck/target/include -L/root/mck/target/lib64 -lihk -Wl,-rpath=/root/mck/target/lib64 get_rusage.c -o get_rusage
+cc -g -O0 -Wall -I/root/mck/target/include filemap_sigbus.c -o filemap_sigbus
+./C1422.sh
+mcstop+release.sh ... done
+mcreboot.sh -c 12-15 -m 512M@4 ... done
+
+*** get_rusage test
+./C1422.sh: line 12: 453200 Bus error               (core dumped) $MCEXEC ./filemap_sigbus ./tmp
+TEST OK.
+
+*** LTP
+mmap01      1  TPASS  :  Functionality of mmap() successful
+mmap02      1  TPASS  :  Functionality of mmap() successful
+mmap03      1  TPASS  :  mmap() functionality is correct
+mmap04      1  TPASS  :  Functionality of mmap() successful
+mmap05      1  TPASS  :  Got SIGSEGV as expected
+mmap06      1  TPASS  :  mmap failed with EACCES
+mmap07      1  TPASS  :  mmap failed with EACCES
+mmap08      1  TPASS  :  mmap failed with EBADF
+mmap09      1  TPASS  :  ftruncate mmaped file to a smaller size
+mmap09      2  TPASS  :  ftruncate mmaped file to a larger size
+mmap09      3  TPASS  :  ftruncate mmaped file to 0 size
+tst_test.c:1096: INFO: Timeout per run is 0h 05m 00s
+mmap12.c:103: INFO: All pages are present
+mmap12.c:127: PASS: File mapped properly
+
+Summary:
+passed   1
+failed   0
+skipped  0
+warnings 0
+mmap13      1  TPASS  :  Got SIGBUS as expected
+mmap14      1  TPASS  :  Functionality of mmap() successful
+mmap15      1  TPASS  :  mmap into high region failed as expected: errno=ENOMEM(12): Cannot allocate memory
+
+*** ostest, check ok
+[OK] mmap_file 0
+[OK] mmap_file 2
+[OK] mmap_file 4
+[OK] mmap_file 6
+[OK] mmap_file 10
+[OK] mmap_file 11
+[OK] mmap_file 32
+[OK] mmap_file 34
+[OK] mmap_file 36
+[OK] mmap_file 38
+[OK] mmap_file 40
+[OK] mmap_file 41
+[OK] mmap_file 42
+[OK] mmap_file 43
+[OK] mmap_file 48
+
+*** otest, check mmap error.
+[OK] mmap_file 8
+[OK] mmap_file 9
+[OK] mmap_file 16
+[OK] mmap_file 17
+[OK] mmap_file 18
+[OK] mmap_file 19
+[OK] mmap_file 20
+[OK] mmap_file 21
+[OK] mmap_file 22
+[OK] mmap_file 23
+[OK] mmap_file 24
+[OK] mmap_file 25
+[OK] mmap_file 26
+[OK] mmap_file 27
+[OK] mmap_file 28
+[OK] mmap_file 29
+[OK] mmap_file 30
+[OK] mmap_file 31
+
+*** oetest, check page fault
+./C1422.sh: line 60: 453714 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 1
+./C1422.sh: line 60: 453724 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 3
+./C1422.sh: line 60: 453734 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 5
+./C1422.sh: line 60: 453744 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 7
+./C1422.sh: line 60: 453754 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 12
+./C1422.sh: line 60: 453764 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 13
+./C1422.sh: line 60: 453774 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 14
+./C1422.sh: line 60: 453784 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 15
+./C1422.sh: line 60: 453794 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 33
+./C1422.sh: line 60: 453804 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 35
+./C1422.sh: line 60: 453814 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 37
+./C1422.sh: line 60: 453824 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 39
+./C1422.sh: line 60: 453836 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 44
+./C1422.sh: line 60: 453846 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 45
+./C1422.sh: line 60: 453856 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 46
+./C1422.sh: line 60: 453866 Segmentation fault      (core dumped) $MCEXEC $TESTMCK -s mmap_file -n $i -- -f ./tmp > /dev/null
+[OK] mmap_file 47