Patchwork qemu-iotests: qcow2 error path tests

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Submitter Kevin Wolf
Date June 4, 2010, 5:35 p.m.
Message ID <1275672924-4645-1-git-send-email-kwolf@redhat.com>
Download mbox | patch
Permalink /patch/54665/
State New
Headers show

Comments

Kevin Wolf - June 4, 2010, 5:35 p.m.
This adds test cases for qcow2 error paths (using blkdebug)

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 026     |  192 ++++++++++++++++++++++
 026.out |  558 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 group   |    1 +
 3 files changed, 751 insertions(+), 0 deletions(-)
 create mode 100755 026
 create mode 100644 026.out
Christoph Hellwig - June 14, 2010, 9:38 a.m.
On Fri, Jun 04, 2010 at 07:35:24PM +0200, Kevin Wolf wrote:
> This adds test cases for qcow2 error paths (using blkdebug)

Thanks, applied.

What's the plan for getting the fixes this tests into mainline?
Kevin Wolf - June 14, 2010, 9:53 a.m.
Am 14.06.2010 11:38, schrieb Christoph Hellwig:
> On Fri, Jun 04, 2010 at 07:35:24PM +0200, Kevin Wolf wrote:
>> This adds test cases for qcow2 error paths (using blkdebug)
> 
> Thanks, applied.
> 
> What's the plan for getting the fixes this tests into mainline?

The test passes in the block branch, but Anthony hasn't pulled for a
while now.

I'm not sure how to handle it, I have about 50 patches in the queue now
- if I want to send pull requests of resonable sizes it will take two
more pulls after the currently pending pull request of the week before
last. Of course I could just send all 50 patches at once, but I guess
he'd be even more uncomfortable with pulling then...

Anthony, what's your plan and what can I do to support you?

Kevin

Patch

diff --git a/026 b/026
new file mode 100755
index 0000000..ad109f7
--- /dev/null
+++ b/026
@@ -0,0 +1,192 @@ 
+#!/bin/bash
+#
+# qcow2 error path testing
+#
+# Copyright (C) 2010 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
+owner=kwolf@redhat.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+	_cleanup_test_img
+    rm $TEST_DIR/blkdebug.conf
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.pattern
+
+# Currently only qcow2 supports rebasing
+_supported_fmt qcow2
+_supported_os Linux
+
+
+echo "Errors while writing 128 kB"
+echo
+
+CLUSTER_SIZE=1024
+
+BLKDBG_TEST_IMG="blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG"
+
+for event in \
+    l1_update \
+    \
+    l2_load \
+    l2_update \
+    l2_alloc.write \
+    \
+    write_aio \
+    \
+    refblock_load \
+    refblock_update_part \
+    refblock_alloc \
+    \
+    cluster_alloc \
+
+do
+
+for errno in 5 28; do
+for imm in off; do
+for once in on off; do
+for vmstate in "" "-b"; do
+
+cat > $TEST_DIR/blkdebug.conf <<EOF
+[inject-error]
+event = "$event"
+errno = "$errno"
+immediately = "$imm"
+once ="$once"
+EOF
+
+_make_test_img 1G
+
+echo
+echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate"
+$QEMU_IO -c "write $vmstate 0 128k " $BLKDBG_TEST_IMG | _filter_qemu_io
+
+# l2_load is not called on allocation, so issue a second write
+# Reads are another path to trigger l2_load, so do a read, too
+if [ "$event" == "l2_load" ]; then
+    $QEMU_IO -c "write $vmstate 0 128k " $BLKDBG_TEST_IMG | _filter_qemu_io
+    $QEMU_IO -c "read $vmstate 0 128k " $BLKDBG_TEST_IMG | _filter_qemu_io
+fi
+
+$QEMU_IMG check $TEST_IMG 2>&1 | grep -v "refcount=1 reference=0"
+
+done
+done
+done
+done
+done
+
+
+echo
+echo === Refcout table growth tests ===
+echo
+CLUSTER_SIZE=512
+
+
+for event in \
+    refblock_alloc.hookup \
+    refblock_alloc.write \
+    refblock_alloc.write_blocks \
+    refblock_alloc.write_table \
+    refblock_alloc.switch_table \
+
+do
+
+# This one takes a while, so let's test only one error code (ENOSPC should
+# never be generated by qemu, so it's probably a good choice)
+for errno in 28; do
+for imm in off; do
+for once in on off; do
+for vmstate in "" "-b"; do
+
+cat > $TEST_DIR/blkdebug.conf <<EOF
+[inject-error]
+event = "$event"
+errno = "$errno"
+immediately = "$imm"
+once = "$once"
+EOF
+
+_make_test_img 1G
+
+echo
+echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate"
+$QEMU_IO -c "write $vmstate 0 64M" $BLKDBG_TEST_IMG | _filter_qemu_io
+
+$QEMU_IMG check $TEST_IMG 2>&1 | grep -v "refcount=1 reference=0"
+
+done
+done
+done
+done
+done
+
+echo
+echo === L1 growth tests ===
+echo
+CLUSTER_SIZE=1024
+
+
+for event in \
+    l1_grow.alloc_table \
+    l1_grow.write_table \
+    l1_grow.activate_table \
+
+do
+
+for errno in 5 28; do
+for imm in off; do
+for once in on off; do
+
+cat > $TEST_DIR/blkdebug.conf <<EOF
+[inject-error]
+event = "$event"
+errno = "$errno"
+immediately = "$imm"
+once = "$once"
+EOF
+
+_make_test_img 1G
+
+echo
+echo "Event: $event; errno: $errno; imm: $imm; once: $once"
+$QEMU_IO -c "write -b 0 64k" $BLKDBG_TEST_IMG | _filter_qemu_io
+
+$QEMU_IMG check $TEST_IMG 2>&1 | grep -v "refcount=1 reference=0"
+
+done
+done
+done
+done
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
diff --git a/026.out b/026.out
new file mode 100644
index 0000000..da611e5
--- /dev/null
+++ b/026.out
@@ -0,0 +1,558 @@ 
+QA output created by 026
+Errors while writing 128 kB
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_update; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 5; imm: off; once: on; write 
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: Input/output error
+read failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 5; imm: off; once: on; write -b
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: Input/output error
+read failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 5; imm: off; once: off; write 
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: Input/output error
+read failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 5; imm: off; once: off; write -b
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: Input/output error
+read failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 28; imm: off; once: on; write 
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: No space left on device
+read failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 28; imm: off; once: on; write -b
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: No space left on device
+read failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 28; imm: off; once: off; write 
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: No space left on device
+read failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_load; errno: 28; imm: off; once: off; write -b
+wrote 131072/131072 bytes at offset 0
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+write failed: No space left on device
+read failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_update; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+128 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l2_alloc.write; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+1 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: write_aio; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_load; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_update_part; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: refblock_alloc; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 5; imm: off; once: on; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 5; imm: off; once: on; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 5; imm: off; once: off; write 
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 5; imm: off; once: off; write -b
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: cluster_alloc; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+No errors were found on the image.
+
+=== Refcout table growth tests ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.hookup; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.hookup; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.hookup; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+55 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.hookup; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+251 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_blocks; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_blocks; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_blocks; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+10 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_blocks; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+23 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_table; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_table; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_table; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+10 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.write_table; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+23 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.switch_table; errno: 28; imm: off; once: on; write 
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.switch_table; errno: 28; imm: off; once: on; write -b
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.switch_table; errno: 28; imm: off; once: off; write 
+write failed: No space left on device
+10 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=512 
+
+Event: refblock_alloc.switch_table; errno: 28; imm: off; once: off; write -b
+write failed: No space left on device
+23 errors were found on the image.
+
+=== L1 growth tests ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.alloc_table; errno: 5; imm: off; once: on
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.alloc_table; errno: 5; imm: off; once: off
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.alloc_table; errno: 28; imm: off; once: on
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.alloc_table; errno: 28; imm: off; once: off
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.write_table; errno: 5; imm: off; once: on
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.write_table; errno: 5; imm: off; once: off
+qcow2_free_clusters failed: Input/output error
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.write_table; errno: 28; imm: off; once: on
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.write_table; errno: 28; imm: off; once: off
+qcow2_free_clusters failed: No space left on device
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.activate_table; errno: 5; imm: off; once: on
+write failed: Input/output error
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.activate_table; errno: 5; imm: off; once: off
+qcow2_free_clusters failed: Input/output error
+write failed: Input/output error
+96 errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.activate_table; errno: 28; imm: off; once: on
+write failed: No space left on device
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 cluster_size=1024 
+
+Event: l1_grow.activate_table; errno: 28; imm: off; once: off
+qcow2_free_clusters failed: No space left on device
+write failed: No space left on device
+96 errors were found on the image.
+*** done
diff --git a/group b/group
index 3c0e630..44581a9 100644
--- a/group
+++ b/group
@@ -32,3 +32,4 @@ 
 023 rw auto
 024 rw backing auto
 025 rw auto
+026 rw blkdbg auto