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b5a210dce7
When running on FreeBSD, there's a bug in virCommandProcessIO polling that is triggered by the commandtest. A test that triggers EPIPE in commandtest (named "test20") hungs forever on FreeBSD. Apparently, this happens because FreeBSD sets POLLHUP flag on revents when stdin in closed. And as the current implementation only checks for POLLOUT and POLLERR, it ends up looping forever inside virCommandProcessIO and not trying to do one more write() that would trigger EPIPE. To fix that check for the POLLHUP flag along with POLLOUT and POLLERR. (cherry picked from commit e34cccf783983e1b19f139bde873e950424a8778)
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>