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Date: Fri, 23 Sep 2016 12:36:12 -0300
From: Eduardo Habkost <ehabkost@redhat.com>
Message-ID: <20160923153612.GU3233@thinpad.lan.raisama.net>
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Subject: [Qemu-devel] vhost-user-test failure
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To: qemu-devel@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>

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

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