[libvirt-users] No way to stop virStream error after guest stop

[Martin Kletzander]

On Wed, May 17, 2017 at 01:01:39AM +0000, JosÉ Luis Valencia Gutierrez wrote:
>I get just _READABLE events repeatedly, virStreamAbort() doesn't work, it
>gets out of control after the target domain stops and the unix scocket is
>deleted. I ended connecting directly to the unix socket. I just wanted to
>ask if it certainly is a bug or perhaps someone went through this before
>and have a workaround.
>

It's OK workaround if you are on the same host and you can connect to
the unix socket directly.  But I think this is a bug and we need to fix
it for others who need to call this remotely.

Thanks for letting us know.  Would you mind filing a bug so that we can
track this issue properly?  I'm currently trying to reproduce the issue,
although I wasn't successful yet.

>Jose V.
>Em ter, 16 de mai de 2017 às 05:28, Martin Kletzander <mkletzan at redhat.com>
>escreveu:
>
>> On Fri, Apr 28, 2017 at 11:01:18PM +0000, JosÉ Luis Valencia Gutierrez
>> wrote:
>> >Hello everyone,
>> >I am opening a virChannel(unix) to a domain and receiving data with a
>> >non-blocking virStream using events, when the connected domain gets
>> >stopped(which deletes the channel unix socket) by calling destroy,
>> >shutdown, pause or migrate on that domain, with the stream open the read
>> >event is triggered repeatedly, and virStreamRecv returns 0 bytes
>> indicating
>> > EOF but neither  virStreamFinish nor virStreamFinish is working to stop
>> >the stream to trigger the event . Each time the event is called I got this
>> >errors.
>> >
>> >libvirt: I/O Stream Utils error : this function is not supported by
>> >the connection driver: virStreamRecv
>> >
>> >libvirt: I/O Stream Utils error : this function is not supported by
>> >the connection driver: virStreamFinish
>> >
>> >libvirt: I/O Stream Utils error : this function is not supported by
>> >the connection driver: virStreamEventRemoveCallback
>> >
>> >
>> >Is there other way to stop getting this errors? or perhaps this is a bug.
>> >
>>
>> This sounds like a bug.  Do you get no other event than just _READABLE?
>> No _HANGUP or _ERROR?  Does virStreamAbort() work, even though it's
>> probably not what you are looking for?
>>
>> >Thanks in advance.
>> >
>> >Jose Valencia
>>
>> >_______________________________________________
>> >libvirt-users mailing list
>> >libvirt-users at redhat.com
>> >https://www.redhat.com/mailman/listinfo/libvirt-users
>>
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