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Re: Failing QEMU iotests

From: John Snow
Subject: Re: Failing QEMU iotests
Date: Wed, 17 Nov 2021 13:13:12 -0500

On Wed, Nov 17, 2021 at 5:07 AM Thomas Huth <thuth@redhat.com> wrote:


I think it has been working fine for me a couple of weeks ago,
but when I now run:

  make check SPEED=slow

I'm getting a couple of failing iotests... not sure whether
these are known issues already, so I thought I'd summarize them

*** First one is 045 in raw mode: ***

  TEST   iotest-raw: 045 [fail]
QEMU          -- "/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../qemu-system-x86_64" -nodefaults -display none -accel qtest
QEMU_IMG      -- "/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../qemu-img"
QEMU_IO       -- "/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../qemu-io" --cache writeback --aio threads -f raw
QEMU_NBD      -- "/home/thuth/tmp/qemu-build/tests/qemu-iotests/../../qemu-nbd"
IMGFMT        -- raw
IMGPROTO      -- file
PLATFORM      -- Linux/x86_64 thuth 4.18.0-305.19.1.el8_4.x86_64
TEST_DIR      -- /home/thuth/tmp/qemu-build/tests/qemu-iotests/scratch
SOCK_DIR      -- /tmp/tmphlexdrlt

--- /home/thuth/devel/qemu/tests/qemu-iotests/045.out
+++ 045.out.bad
@@ -1,5 +1,77 @@
+ERROR: test_add_fd (__main__.TestSCMFd)
+Traceback (most recent call last):
+  File "/home/thuth/devel/qemu/tests/qemu-iotests/045", line 148, in test_add_fd
+    self._send_fd_by_SCM()
+  File "/home/thuth/devel/qemu/tests/qemu-iotests/045", line 144, in _send_fd_by_SCM
+    ret = self.vm.send_fd_scm(file_path=image0)
+  File "/home/thuth/devel/qemu/python/qemu/machine/machine.py", line 229, in send_fd_scm
+    self._qmp.send_fd_scm(fd)
+  File "/home/thuth/devel/qemu/python/qemu/aqmp/legacy.py", line 138, in send_fd_scm
+    self._aqmp.send_fd_scm(fd)
+  File "/home/thuth/devel/qemu/python/qemu/aqmp/protocol.py", line 149, in _wrapper
+    return func(proto, *args, **kwargs)
+  File "/home/thuth/devel/qemu/python/qemu/aqmp/qmp_client.py", line 644, in send_fd_scm
+    sock = sock._sock  # pylint: disable=protected-access
+AttributeError: 'socket' object has no attribute '_sock'

Well, that's not good.

Can you tell me some details about what system produced this failure?
The python version used to run the test would be good, as well as distro release, kernel version, etc.

If you can reproduce it, I might want to give you a test branch of the python code to produce some extra debugging information to help me understand what's gone wrong here. Get in touch on IRC when you have some spare time if you'd like to interactively debug it.


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