diff --git a/tests/generic/265 b/tests/generic/265
index 8e9d5bc..ceddfbe 100755
--- a/tests/generic/265
+++ b/tests/generic/265
@@ -80,7 +80,11 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+urk=$($XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" \
+	-c "fdatasync" $testdir/file2 2>&1)
+echo $urk >> $seqres.full
+echo "$urk" | grep -q "error" || _fail "pwrite did not fail"
+
 _dmerror_load_working_table
 _dmerror_unmount
 _dmerror_mount
diff --git a/tests/generic/265.out b/tests/generic/265.out
index 1b67114..31eb4e9 100644
--- a/tests/generic/265.out
+++ b/tests/generic/265.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-265/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-265/file2
 CoW and unmount
-fdatasync: Input/output error
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-265/file1
 Check for damage
diff --git a/tests/generic/266 b/tests/generic/266
index 4f9816a..09541c8 100755
--- a/tests/generic/266
+++ b/tests/generic/266
@@ -80,7 +80,10 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+urk=$($XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" \
+	-c "fdatasync" $testdir/file2 2>&1)
+echo $urk >> $seqres.full
+echo "$urk" | grep -q "error" || _fail "pwrite did not fail"
 
 echo "Clean up the mess"
 _dmerror_unmount
diff --git a/tests/generic/266.out b/tests/generic/266.out
index dd34ad3..1641654 100644
--- a/tests/generic/266.out
+++ b/tests/generic/266.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-266/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-266/file2
 CoW and unmount
-fdatasync: Input/output error
 Clean up the mess
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-266/file1
diff --git a/tests/generic/267 b/tests/generic/267
index e3a6b0c..2ec6ad9 100755
--- a/tests/generic/267
+++ b/tests/generic/267
@@ -80,7 +80,7 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 >> $seqres.full 2>&1
 _dmerror_load_working_table
 rm -rf $testdir/file2 >> $seqres.full 2>&1
 _dmerror_unmount
diff --git a/tests/generic/268 b/tests/generic/268
index c7dcd57..b7d16ab 100755
--- a/tests/generic/268
+++ b/tests/generic/268
@@ -81,7 +81,10 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+urk=$($XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" \
+	-c "fdatasync" $testdir/file2 2>&1)
+echo $urk >> $seqres.full
+echo "$urk" | grep -q "error" || _fail "pwrite did not fail"
 _dmerror_load_working_table
 
 echo "Rewrite"
diff --git a/tests/generic/268.out b/tests/generic/268.out
index 234e8be..1a3b39a 100644
--- a/tests/generic/268.out
+++ b/tests/generic/268.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-268/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-268/file2
 CoW and unmount
-fdatasync: Input/output error
 Rewrite
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-268/file1
diff --git a/tests/generic/271 b/tests/generic/271
index ded8854..9439327 100755
--- a/tests/generic/271
+++ b/tests/generic/271
@@ -81,8 +81,9 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 \
-	2>&1 >> $seqres.full | _filter_xfs_io_error
+urk=$($XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 2>&1)
+echo $urk >> $seqres.full
+echo "$urk" | grep -q "error" || _fail "dio pwrite did not fail"
 _dmerror_load_working_table
 _dmerror_unmount
 _dmerror_mount
diff --git a/tests/generic/271.out b/tests/generic/271.out
index 54d5b0d..9b44ee7 100644
--- a/tests/generic/271.out
+++ b/tests/generic/271.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-271/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-271/file2
 CoW and unmount
-pwrite: Input/output error
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-271/file1
 Check for damage
diff --git a/tests/generic/272 b/tests/generic/272
index 5bc5b39..243adf5 100755
--- a/tests/generic/272
+++ b/tests/generic/272
@@ -81,8 +81,9 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 \
-	2>&1 >> $seqres.full | _filter_xfs_io_error
+urk=$($XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 2>&1)
+echo $urk >> $seqres.full
+echo "$urk" | grep -q "error" || _fail "dio pwrite did not fail"
 
 echo "Clean up the mess"
 _dmerror_unmount
diff --git a/tests/generic/272.out b/tests/generic/272.out
index 0b8bdca..10ecda9 100644
--- a/tests/generic/272.out
+++ b/tests/generic/272.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-272/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-272/file2
 CoW and unmount
-pwrite: Input/output error
 Clean up the mess
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-272/file1
diff --git a/tests/generic/276 b/tests/generic/276
index 83b902e..34b0029 100755
--- a/tests/generic/276
+++ b/tests/generic/276
@@ -82,7 +82,7 @@ echo "CoW and unmount"
 sync
 _dmerror_load_error_table
 $XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 \
-	2>&1 >> $seqres.full | _filter_xfs_io_error
+	>> $seqres.full 2>&1
 _dmerror_load_working_table
 rm -rf $testdir/file2 >> $seqres.full 2>&1
 _dmerror_unmount
diff --git a/tests/generic/276.out b/tests/generic/276.out
index 88a0162..a080dd0 100644
--- a/tests/generic/276.out
+++ b/tests/generic/276.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-276/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-276/file2
 CoW and unmount
-pwrite: Input/output error
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-276/file1
 Check for damage
diff --git a/tests/generic/278 b/tests/generic/278
index 415742a..d751f01 100755
--- a/tests/generic/278
+++ b/tests/generic/278
@@ -82,8 +82,9 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 \
-	2>&1 >> $seqres.full | _filter_xfs_io_error
+urk=$($XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 2>&1)
+echo $urk >> $seqres.full
+echo "$urk" | grep -q "error" || _fail "dio pwrite did not fail"
 _dmerror_load_working_table
 
 echo "Rewrite"
diff --git a/tests/generic/278.out b/tests/generic/278.out
index 9ead4ac..cd22fcd 100644
--- a/tests/generic/278.out
+++ b/tests/generic/278.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-278/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-278/file2
 CoW and unmount
-pwrite: Input/output error
 Rewrite
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-278/file1
diff --git a/tests/generic/279 b/tests/generic/279
index 2f1ec4f..4541de3 100755
--- a/tests/generic/279
+++ b/tests/generic/279
@@ -80,8 +80,8 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-urk=$($XFS_IO_PROG -f -c "mmap -rw 0 $filesize" -c "mwrite -S 0x63 0 $filesize" -c "msync -s 0 $filesize" $testdir/file2 > $TEST_DIR/mwrite.out 2>&1)
-cat $TEST_DIR/mwrite.out | tee -a $seqres.full
+$XFS_IO_PROG -f -c "mmap -rw 0 $filesize" -c "mwrite -S 0x63 0 $filesize" \
+	-c "msync -s 0 $filesize" $testdir/file2 >> $seqres.full 2>&1
 _dmerror_load_working_table
 _dmerror_unmount
 _dmerror_mount
diff --git a/tests/generic/279.out b/tests/generic/279.out
index f34c2b2..009f05e 100644
--- a/tests/generic/279.out
+++ b/tests/generic/279.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-279/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-279/file2
 CoW and unmount
-msync: Input/output error
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-279/file1
 Check for damage
diff --git a/tests/generic/281 b/tests/generic/281
index c95acf2..e8e1661 100755
--- a/tests/generic/281
+++ b/tests/generic/281
@@ -80,8 +80,8 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-urk=$($XFS_IO_PROG -f -c "mmap -rw 0 $filesize" -c "mwrite -S 0x63 0 $filesize" -c "msync -s 0 $filesize" $testdir/file2 > $TEST_DIR/mwrite.out 2>&1)
-cat $TEST_DIR/mwrite.out | tee -a $seqres.full
+$XFS_IO_PROG -f -c "mmap -rw 0 $filesize" -c "mwrite -S 0x63 0 $filesize" \
+	-c "msync -s 0 $filesize" $testdir/file2 >> $seqres.full 2>&1
 
 echo "Clean up the mess"
 _dmerror_unmount
diff --git a/tests/generic/281.out b/tests/generic/281.out
index a2d8e3f..1bae187 100644
--- a/tests/generic/281.out
+++ b/tests/generic/281.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-281/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-281/file2
 CoW and unmount
-msync: Input/output error
 Clean up the mess
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-281/file1
diff --git a/tests/generic/283 b/tests/generic/283
index 8d56ac3..7bfdb4d 100755
--- a/tests/generic/283
+++ b/tests/generic/283
@@ -81,8 +81,10 @@ md5sum $testdir/file2 | _filter_scratch
 echo "CoW and unmount"
 sync
 _dmerror_load_error_table
-urk=$($XFS_IO_PROG -f -c "mmap -rw 0 $filesize" -c "mwrite -S 0x63 0 $filesize" -c "msync -s 0 $filesize" $testdir/file2 > $TEST_DIR/mwrite.out 2>&1)
-cat $TEST_DIR/mwrite.out | tee -a $seqres.full
+urk=$($XFS_IO_PROG -f -c "mmap -rw 0 $filesize" -c "mwrite -S 0x63 0 $filesize" \
+	-c "msync -s 0 $filesize" $testdir/file2 2>&1)
+echo $urk >> $seqres.full
+echo "$urk" | grep -q "error" || _fail "mwrite did not fail"
 _dmerror_load_working_table
 
 echo "Rewrite"
diff --git a/tests/generic/283.out b/tests/generic/283.out
index f9fd5c8..b475054 100644
--- a/tests/generic/283.out
+++ b/tests/generic/283.out
@@ -5,7 +5,6 @@ Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-283/file1
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-283/file2
 CoW and unmount
-msync: Input/output error
 Rewrite
 Compare files
 1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-283/file1
