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Diffstat (limited to 'qemu/tests/qemu-iotests/142.out')
-rw-r--r-- | qemu/tests/qemu-iotests/142.out | 750 |
1 files changed, 750 insertions, 0 deletions
diff --git a/qemu/tests/qemu-iotests/142.out b/qemu/tests/qemu-iotests/142.out new file mode 100644 index 000000000..600beca8f --- /dev/null +++ b/qemu/tests/qemu-iotests/142.out @@ -0,0 +1,750 @@ +QA output created by 142 +Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728 +Formatting 'TEST_DIR/t.IMGFMT.snap', fmt=IMGFMT size=134217728 +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base + +=== Simple test for all cache modes === + +Testing: -drive file=TEST_DIR/t.qcow2,cache=none +QEMU X.Y.Z monitor - type 'help' for more information +(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K + +Testing: -drive file=TEST_DIR/t.qcow2,cache=directsync +QEMU X.Y.Z monitor - type 'help' for more information +(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K + +Testing: -drive file=TEST_DIR/t.qcow2,cache=writeback +QEMU X.Y.Z monitor - type 'help' for more information +(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K + +Testing: -drive file=TEST_DIR/t.qcow2,cache=writethrough +QEMU X.Y.Z monitor - type 'help' for more information +(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K + +Testing: -drive file=TEST_DIR/t.qcow2,cache=unsafe +QEMU X.Y.Z monitor - type 'help' for more information +(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K + +Testing: -drive file=TEST_DIR/t.qcow2,cache=invalid_value +QEMU_PROG: -drive file=TEST_DIR/t.qcow2,cache=invalid_value: invalid cache option + + +=== Check inheritance of cache modes === + + +--- Configure cache modes on the command line --- + +cache.direct=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + + +cache.writeback=off on none0 + Cache mode: writethrough + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Block protocol 'file' doesn't support the option 'cache.writeback' + +cache.writeback=off on backing +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.cache.writeback=off: Could not open backing file: Block format 'qcow2' does not support the option 'cache.writeback' + +cache.writeback=off on backing-file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.file.cache.writeback=off: Could not open backing file: Block protocol 'file' doesn't support the option 'cache.writeback' + + +cache.no-flush=on on none0 + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + +cache.no-flush=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + +cache.no-flush=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + +--- Cache modes after reopen (live snapshot) --- + +cache.direct=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + + +cache.writeback=off on none0 + Cache mode: writethrough + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Block protocol 'file' doesn't support the option 'cache.writeback' + +cache.writeback=off on backing +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.cache.writeback=off: Could not open backing file: Block format 'qcow2' does not support the option 'cache.writeback' + +cache.writeback=off on backing-file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.file.cache.writeback=off: Could not open backing file: Block protocol 'file' doesn't support the option 'cache.writeback' + + +cache.no-flush=on on none0 + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + +cache.no-flush=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + +cache.no-flush=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + +--- Change cache modes with reopen (qemu-io command, flags) --- + +cache.direct=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + + +cache.writeback=off on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.writeback=off on file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Block protocol 'file' doesn't support the option 'cache.writeback' + +cache.writeback=off on backing +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.cache.writeback=off: Could not open backing file: Block format 'qcow2' does not support the option 'cache.writeback' + +cache.writeback=off on backing-file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.file.cache.writeback=off: Could not open backing file: Block protocol 'file' doesn't support the option 'cache.writeback' + + +cache.no-flush=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.no-flush=on on file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.no-flush=on on backing + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + +cache.no-flush=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct, ignore flushes + +--- Change cache modes with reopen (qemu-io command, options) --- + +cache.direct=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + + +cache.writeback=off on none0 + Cache mode: writethrough, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.writeback=off on file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Block protocol 'file' doesn't support the option 'cache.writeback' + +cache.writeback=off on backing +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.cache.writeback=off: Could not open backing file: Block format 'qcow2' does not support the option 'cache.writeback' + +cache.writeback=off on backing-file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.file.cache.writeback=off: Could not open backing file: Block protocol 'file' doesn't support the option 'cache.writeback' + + +cache.no-flush=on on none0 + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + +cache.no-flush=on on file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.no-flush=on on backing + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + +cache.no-flush=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct, ignore flushes + +--- Change cache modes after snapshot --- + +cache.direct=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on backing + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + + +cache.writeback=off on none0 + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Block protocol 'file' doesn't support the option 'cache.writeback' + +cache.writeback=off on backing +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.cache.writeback=off: Could not open backing file: Block format 'qcow2' does not support the option 'cache.writeback' + +cache.writeback=off on backing-file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.file.cache.writeback=off: Could not open backing file: Block protocol 'file' doesn't support the option 'cache.writeback' + + +cache.no-flush=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + +cache.no-flush=on on file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on backing + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + +cache.no-flush=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + +--- Change cache mode in parent, child has explicit option in JSON --- + + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, ignore flushes + +=== Check that referenced BDSes don't inherit === + + +--- Configure cache modes on the command line --- + +cache.direct=on on blk + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on file + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + +cache.direct=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + + +cache.writeback=off on blk + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + + +cache.no-flush=on on blk + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on file + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + +cache.no-flush=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + +--- Cache modes after reopen (live snapshot) --- + +cache.direct=on on blk + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + +cache.direct=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + + +cache.writeback=off on blk + Cache mode: writethrough + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + + +cache.no-flush=on on blk + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + +cache.no-flush=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + +--- Change cache modes with reopen (qemu-io command, flags) --- + +cache.direct=on on blk + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on file + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + +cache.direct=on on backing + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback + +cache.direct=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + + +cache.writeback=off on blk + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on backing + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.writeback=off on backing-file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + + +cache.no-flush=on on blk + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on file + Cache mode: writeback, direct + Cache mode: writeback, ignore flushes + Cache mode: writeback + Cache mode: writeback + +cache.no-flush=on on backing + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback + +cache.no-flush=on on backing-file + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + +=== Reopening children instead of the root === + + +--- Basic reopen --- + +cache.direct=on on none0 + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.direct=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct + + +cache.writeback=off on none0 + Cache mode: writethrough + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.writeback=off on file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,file.cache.writeback=off: Block protocol 'file' doesn't support the option 'cache.writeback' + +cache.writeback=off on backing +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.cache.writeback=off: Could not open backing file: Block format 'qcow2' does not support the option 'cache.writeback' + +cache.writeback=off on backing-file +QEMU_PROG: -drive if=none,file=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,backing.file.cache.writeback=off: Could not open backing file: Block protocol 'file' doesn't support the option 'cache.writeback' + + +cache.no-flush=on on none0 + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, ignore flushes + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + +cache.no-flush=on on file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, ignore flushes + Cache mode: writeback, direct + Cache mode: writeback, direct + +cache.no-flush=on on backing + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct, ignore flushes + Cache mode: writeback, direct, ignore flushes + +cache.no-flush=on on backing-file + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, direct, ignore flushes + +--- Change cache mode after reopening child --- + + Cache mode: writeback, direct + Cache mode: writeback + Cache mode: writeback, direct + Cache mode: writeback, ignore flushes +*** done |