From: Kevin Wolf <kwolf@redhat.com>
To: John Snow <jsnow@redhat.com>
Cc: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
Eduardo Habkost <ehabkost@redhat.com>,
qemu-block@nongnu.org, qemu-devel <qemu-devel@nongnu.org>,
Hanna Reitz <hreitz@redhat.com>, Cleber Rosa <crosa@redhat.com>
Subject: Re: [PATCH v5 2/8] python/machine: Handle QMP errors on close more meticulously
Date: Thu, 28 Oct 2021 12:01:10 +0200 [thread overview]
Message-ID: <YXp05svPZwSXOA/d@redhat.com> (raw)
In-Reply-To: <CAFn=p-bU3SjifQXDEBX07Fxy-G-TAj3hbBJYqMJQ=Xrr0bJqEw@mail.gmail.com>
Am 27.10.2021 um 19:49 hat John Snow geschrieben:
> This reply is long, sorry.
And after writing half of a very long reply myself, I noticed that I was
just very confused, so sorry for making you write a long text for no
real reason (well, at least for my first point - for the second one,
your explanation was very helpful, so thanks for that).
Somehow I ended up completely ignoring the context of the code (it's run
as part of shutdown functions) and instead thought of the general
condition of QMP connections going away anywhere in the code.
I suppose this could be a relevant concern in an actually asynchronous
client that may read from the socket (and encounter an error if the QEMU
process has already gone away and closed the connection) at any time,
but that's not what machine.py is meant for, at least not for now.
So I'll just delete what I already wrote. This patch should be fine.
Kevin
next prev parent reply other threads:[~2021-10-28 10:02 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-26 17:56 [PATCH v5 0/8] Switch iotests to using Async QMP John Snow
2021-10-26 17:56 ` [PATCH v5 1/8] python/machine: remove has_quit argument John Snow
2021-10-26 17:56 ` [PATCH v5 2/8] python/machine: Handle QMP errors on close more meticulously John Snow
2021-10-27 11:19 ` Kevin Wolf
2021-10-27 17:49 ` John Snow
2021-10-28 10:01 ` Kevin Wolf [this message]
2021-10-28 15:35 ` John Snow
2021-10-26 17:56 ` [PATCH v5 3/8] python/aqmp: Remove scary message John Snow
2021-10-26 17:56 ` [PATCH v5 4/8] iotests: Accommodate async QMP Exception classes John Snow
2021-10-26 17:56 ` [PATCH v5 5/8] iotests: Conditionally silence certain AQMP errors John Snow
2021-10-26 17:56 ` [PATCH v5 6/8] iotests/300: avoid abnormal shutdown race condition John Snow
2021-10-27 12:56 ` Kevin Wolf
2021-10-27 17:55 ` John Snow
2021-10-26 17:56 ` [PATCH v5 7/8] python/aqmp: Create sync QMP wrapper for iotests John Snow
2021-10-26 17:56 ` [PATCH v5 8/8] python, iotests: replace qmp with aqmp John Snow
2021-10-28 10:37 ` [PATCH v5 0/8] Switch iotests to using Async QMP Kevin Wolf
2021-10-28 14:48 ` John Snow
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