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

[Michael S. Tsirkin]

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?

> 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