Re: [Qemu-devel] vhost-user-test failure

[Maxime Coquelin]

On 09/23/2016 05:41 PM, Michael S. Tsirkin wrote:
> On Fri, Sep 23, 2016 at 12:36:12PM -0300, Eduardo Habkost wrote:
> > Hi,
> >
> > I hit a weird vhost-user-test failure on travis-ci recently, on a
> > branch where I didn't touch any vhost-related code. From a quick
> > look at the code, it looks like the vhost-user code is unhappy to
> > see a disconnected socket.
> >
> > I wasn't able to reproduce it. It seems to be a hard to reproduce
> > race between vhost-user code and socket reconnection.
> >
> > The failure can be seen at:
> >
> > https://travis-ci.org/ehabkost/qemu-hacks/jobs/162077239
>
> Maxime looked at something similiar. Any idea?
No, not really.
Marc-André contributed a lot to these tests, I add him in cc: in case
he has an idea.

I will have a look in the mean time.

Maxime

> > Error output:
> >
> >   **
> >   ERROR:tests/vhost-user-test.c:715:test_reconnect: child process 
> > (/i386/vhost-user/reconnect/subprocess [23792]) failed unexpectedly
> >   qemu-system-i386: Failed to set msg fds.
> >   qemu-system-i386: vhost VQ 0 ring restore failed: -1: Resource temporarily 
> > unavailable (11)
> >   qemu-system-i386: Failed to set msg fds.
> >   qemu-system-i386: vhost VQ 1 ring restore failed: -1: Resource temporarily 
> > unavailable (11)
> >   GTester: last random seed: R02S2892f6ad84bd5d03acd54cb75f444243
> >   make: *** [check-qtest-i386] Error 1
> >
> > --
> > Eduardo