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Re: [Qemu-block] [Qemu-devel] Consistency of iotests 093 and 136
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-block] [Qemu-devel] Consistency of iotests 093 and 136 |
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Date: |
Thu, 24 Jan 2019 12:07:47 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 |
On 1/24/19 8:34 AM, Alberto Garcia wrote:
> On Thu 24 Jan 2019 11:11:06 AM CET, Alberto Garcia wrote:
>> On Wed 23 Jan 2019 06:00:49 PM CET, Max Reitz wrote:
>>> Hi,
>>>
>>> 093 and 136 seem really flaky to me. I can reproduce that by running:
>>
>> That's interesting, I can make 093 fail quite easily now (I haven't
>> tested the other one yet), but I don't think this happened
>> earlier. I'll try to figure out what's going on.
>
> I bisected this and it seems that 093 started to fail after this:
>
> 8258292e monitor: Remove "x-oob", offer capability "oob" unconditionally
>
> I'm not familiar with that option so I need to investigate.
We've got several tests failing after making x-oob unconditional; here's
another thread:
https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg05587.html
Could it be that the test was using some sort of QMP command as an
attempt to synchronize state, but the OOB handling is now making it not
a reliable sync point?
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
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