Commit 491b167210 for qemu.org

commit 491b16721044353b980aa562cd163c6d51eac19a
Author: Eric Farman <farman@linux.ibm.com>
Date:   Fri Sep 25 21:44:05 2026 +0200

    iotests/nbd-in-qcow2-chain: use default machine

    Some of the NBD tests explicitly specify `-machine q35` which won't work
    when running against, say, qemu-system-s390x.

    The nbd-in-qcow2-chain test runs fine with the default machine on a z16
    host, so allow it to run in other configurations.

    Fixes: 24fd6d75b3 ("iotests: Add coverage of recent NBD qio deadlock fix")
    Signed-off-by: Eric Farman <farman@linux.ibm.com>
    Message-ID: <20260925194409.716498-2-farman@linux.ibm.com>
    Reviewed-by: Eric Blake <eblake@redhat.com>
    Signed-off-by: Eric Blake <eblake@redhat.com>

diff --git a/tests/qemu-iotests/tests/nbd-in-qcow2-chain b/tests/qemu-iotests/tests/nbd-in-qcow2-chain
index 9a977e5a1b..5c929e42f9 100755
--- a/tests/qemu-iotests/tests/nbd-in-qcow2-chain
+++ b/tests/qemu-iotests/tests/nbd-in-qcow2-chain
@@ -41,7 +41,7 @@ TEST_IMG="$TEST_IMG.base" _make_test_img $size
 echo
 echo "=== Starting QEMU and exposing base image ==="

-_launch_qemu -machine q35
+_launch_qemu
 h1=$QEMU_HANDLE
 _send_qemu_cmd $QEMU_HANDLE '{"execute": "qmp_capabilities"}' 'return'
 _send_qemu_cmd $QEMU_HANDLE '{"execute": "blockdev-add",