Return to 028 CVS log

Up to [Qemu by Fabrice Bellard] / qemu / tests / qemu-iotests

Annotation of qemu/tests/qemu-iotests/028, revision 1.1.1.1

1.1       root        1: #!/bin/bash
                      2: #
                      3: # Test that backing files can be smaller than the image
                      4: #
                      5: # Copyright (C) 2010 IBM, Corp.
                      6: #
                      7: # Based on 017:
                      8: # Copyright (C) 2009 Red Hat, Inc.
                      9: #
                     10: # This program is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # This program is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with this program.  If not, see <http://www.gnu.org/licenses/>.
                     22: #
                     23: 
                     24: # creator
                     25: [email protected]
                     26: 
                     27: seq=`basename $0`
                     28: echo "QA output created by $seq"
                     29: 
                     30: here=`pwd`
                     31: tmp=/tmp/$$
                     32: status=1       # failure is the default!
                     33: 
                     34: _cleanup()
                     35: {
                     36:        _cleanup_test_img
                     37: }
                     38: trap "_cleanup; exit \$status" 0 1 2 3 15
                     39: 
                     40: # get standard environment, filters and checks
                     41: . ./common.rc
                     42: . ./common.filter
                     43: . ./common.pattern
                     44: 
                     45: # Any format supporting backing files except vmdk and qcow which do not support
                     46: # smaller backing files.
                     47: _supported_fmt qcow2 qed
                     48: _supported_proto generic
                     49: _supported_os Linux
                     50: 
                     51: # Choose a size that is not necessarily a cluster size multiple for image
                     52: # formats that use clusters.  This will ensure that the base image doesn't end
                     53: # precisely on a cluster boundary (the easy case).
                     54: image_size=$(( 4 * 1024 * 1024 * 1024 + 3 * 512 ))
                     55: 
                     56: # The base image is smaller than the image file
                     57: base_size=$(( image_size - 1024 * 1024 * 1024 ))
                     58: 
                     59: offset=$(( base_size - 32 * 1024 ))
                     60: 
                     61: _make_test_img $base_size
                     62: 
                     63: echo "Filling base image"
                     64: echo
                     65: 
                     66: # Fill end of base image with a pattern, skipping every other sector
                     67: io writev $offset 512 1024 32
                     68: 
                     69: _check_test_img
                     70: 
                     71: echo "Creating test image with backing file"
                     72: echo
                     73: 
                     74: mv $TEST_IMG $TEST_IMG.base
                     75: _make_test_img -b $TEST_IMG.base $image_size
                     76: 
                     77: echo "Filling test image"
                     78: echo
                     79: 
                     80: # Write every other sector around where the base image ends
                     81: io writev $(( offset + 512 )) 512 1024 64
                     82: 
                     83: _check_test_img
                     84: 
                     85: echo "Reading"
                     86: echo
                     87: 
                     88: # Base image sectors
                     89: io readv $(( offset )) 512 1024 32
                     90: 
                     91: # Image sectors
                     92: io readv $(( offset + 512 )) 512 1024 64
                     93: 
                     94: # Zero sectors beyond end of base image
                     95: io_zero readv $(( offset + 32 * 1024 )) 512 1024 32
                     96: 
                     97: _check_test_img
                     98: 
                     99: # Rebase it on top of its base image
                    100: $QEMU_IMG rebase -b $TEST_IMG.base $TEST_IMG
                    101: 
                    102: _check_test_img
                    103: 
                    104: # success, all done
                    105: echo "*** done"
                    106: rm -f $seq.full
                    107: status=0

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.