New upstream development version 1.21.5.
This commit is contained in:
Richard W.M. Jones
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From 0632acc76bfeb7d70d3eefa42fc842ce6b7be4f8 Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Wed, 20 May 2020 13:27:27 +0100
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Subject: [PATCH] tests/test-truncate4.sh: Rewrite to use nbdsh.
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The old test relied on issuing an asynchronous command to a qemu-io
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subprocess, requiring a sleep to ensure that the command had been
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carried out. ‘sleep 1’ was not long enough on s390x as you can see
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from this partial trace:
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+ exec
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+ qemu-io -f raw nbd:unix:/tmp/tmp.jqOZGj6dnX
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+ exec
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+ echo 'Reading from connection A, try 1'
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Reading from connection A, try 1
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+ echo 'r -P 1 0 1024'
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+ sleep 1
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Above we issue the command and sleep while it executes. However:
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nbdkit: debug: accepted connection
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nbdkit: file[1]: debug: truncate: preconnect
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nbdkit: file[1]: debug: file: preconnect
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nbdkit: file[1]: debug: newstyle negotiation: flags: global 0x3
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+ echo 'Resizing down'
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Resizing down
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+ truncate -s 512 truncate4.data
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nbdkit: file[1]: debug: newstyle negotiation: client flags: 0x3
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nbdkit: file[1]: debug: newstyle negotiation: NBD_OPT_STRUCTURED_REPLY: client requested structured replies
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Here are still connecting to nbdkit from "connection A", long after
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the sleep has finished and the truncate has been done.
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Instead of increasing the sleep and hoping for the best, I chose to
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rewrite the test to use nbdsh. This allows us to control both
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connections from a single process, making the test predicatable and
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easier to understand.
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---
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tests/test-truncate4.sh | 85 +++++++++++++++++++++++++----------------
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1 file changed, 53 insertions(+), 32 deletions(-)
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diff --git a/tests/test-truncate4.sh b/tests/test-truncate4.sh
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index e4be626b..36b2743c 100755
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--- a/tests/test-truncate4.sh
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+++ b/tests/test-truncate4.sh
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@@ -1,6 +1,6 @@
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#!/usr/bin/env bash
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# nbdkit
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-# Copyright (C) 2019 Red Hat Inc.
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+# Copyright (C) 2019-2020 Red Hat Inc.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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@@ -31,55 +31,76 @@
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# SUCH DAMAGE.
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# Regression test when next_ops->get_size changes between connections.
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+#
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# For now, NBD does not support dynamic resize; but the file plugin
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# reads size from the file system for each new connection, at which
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# point the client remembers that size for the life of the connection.
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+#
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# We are testing that connection A can still see the tail of a file,
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# even when connection B is opened while the file was temporarily
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-# shorter (if the actions of connection B affect the size visible
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-# through connection A, we didn't isolate per-connection state).
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+# shorter. If the actions of connection B affect the size visible
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+# through connection A, we didn't isolate per-connection state.
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source ./functions.sh
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set -e
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set -x
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-requires qemu-io --version
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+requires nbdsh --version
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sock=`mktemp -u`
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-files="truncate4.out truncate4.pid $sock truncate4.data"
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+data=truncate4.data
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+files="truncate4.pid $sock $data"
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rm -f $files
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cleanup_fn rm -f $files
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-# Initial file contents: 1k of pattern 1
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-truncate -s 1024 truncate4.data
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-qemu-io -c 'w -P 1 0 1024' -f raw truncate4.data
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+# Create and truncate the file.
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+: > $data
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# Run nbdkit with file plugin and truncate filter in front.
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start_nbdkit -P truncate4.pid -U $sock \
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--filter=truncate \
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- file truncate4.data \
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+ file $data \
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round-up=1024
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-fail=0
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-exec 4>&1 # Save original stdout
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-{
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- exec 5>&1 >&4 # Save connection A, set stdout back to original
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- echo 'Reading from connection A, try 1'
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- echo 'r -P 1 0 1024' >&5
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- sleep 1
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- echo 'Resizing down'
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- truncate -s 512 truncate4.data
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- echo 'Reading from connection B'
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- echo 'r -P 1 0 512' | qemu-io -f raw nbd:unix:$sock >> truncate4.out
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- echo 'Restoring size'
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- truncate -s 1024 truncate4.data
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- qemu-io -c 'w -P 2 0 1024' -f raw truncate4.data
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- echo 'Reading from connection A, try 2'
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- echo 'r -P 2 512 512' >&5
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- echo 'quit' >&5
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-} | qemu-io -f raw nbd:unix:$sock >> truncate4.out || fail=1
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-exec 4>&-
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-
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-cat truncate4.out
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-grep 'Pattern verification failed' truncate4.out && fail=1
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-exit $fail
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+export data sock
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+nbdsh -c '
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+import os
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+
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+data = os.environ["data"]
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+sock = os.environ["sock"]
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+
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+def restore_file():
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+ # Original test data, 1024 bytes of "TEST" repeated.
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+ with open (data, "w") as file:
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+ file.write ("TEST"*256)
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+
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+restore_file ()
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+
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+print ("Connection A.", flush=True)
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+connA = nbd.NBD ()
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+connA.set_handle_name ("A")
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+connA.connect_unix (sock)
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+print ("Check the size.", flush=True)
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+assert connA.get_size () == 1024
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+
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+print ("Truncate %s to 512 bytes." % data, flush=True)
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+os.truncate (data, 512)
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+
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+print ("Connection B.", flush=True)
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+connB = nbd.NBD ()
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+connB.set_handle_name ("B")
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+connB.connect_unix (sock)
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+print ("Check the size.", flush=True)
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+assert connB.get_size () == 1024 # because of the round-up parameter
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+print ("Read data from connection B.", flush=True)
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+buf = connB.pread (1024, 0)
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+assert buf == b"TEST"*128 + b"\0"*512
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+
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+print ("Restore the file size and original data.", flush=True)
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+restore_file ()
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+
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+print ("Read data from connection A.", flush=True)
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+buf = connA.pread (1024, 0)
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+assert 1024 == len (buf)
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+assert buf == b"TEST"*256
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+'
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--
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2.25.0
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@ -58,9 +58,6 @@ Source1: http://libguestfs.org/download/nbdkit/%{source_directory}/%{name
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Source2: libguestfs.keyring
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%endif
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# Upstream patch to make tests/test-truncate4.sh more stable on s390x.
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Patch1: 0001-tests-test-truncate4.sh-Rewrite-to-use-nbdsh.patch
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%if 0%{patches_touch_autotools}
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BuildRequires: autoconf, automake, libtool
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%endif
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@ -984,6 +981,9 @@ make %{?_smp_mflags} check || {
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%changelog
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* Sat May 30 2020 Richard W.M. Jones <rjones@redhat.com> - 1.21.5-1
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- New upstream development version 1.21.5.
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* Tue May 26 2020 Miro Hrončok <mhroncok@redhat.com> - 1.21.4-3
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- Rebuilt for Python 3.9
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4
sources
4
sources
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@ -1,2 +1,2 @@
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SHA512 (nbdkit-1.21.4.tar.gz) = fd0865b33975df3d3851b9da3ac78d098e4491fc679f4a4c5c82c4952a6e3b7d581a10a81f5bf2d523c9c2663688385ebdf1eb533ca5e05b2f25674ac28987ff
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SHA512 (nbdkit-1.21.4.tar.gz.sig) = 166b0f842a548c1a22eff2f3f0c03c456114e2eba44e5c5be2fa2e12546fc19d2716fa05c8e78f57ccee7711ef6ea29ed7854f55566f459537d0f44203293473
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SHA512 (nbdkit-1.21.5.tar.gz) = ccd3d4fe4acbc2756ebaebd8c2fd186ed3620ecff813abd7e50c4262aa453cee0f9e1e0120434d0daa0d70d3f512bb568fceb36dfebb2b247633ee12f7411993
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SHA512 (nbdkit-1.21.5.tar.gz.sig) = 7e10439b82b34e78689bff8c3f6cb09bdbb546457342a287bfb41e2e80de0a1be24e333ca14a8c497115e0136edb665285bf2265d6733462d6a28a778620f139
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