@@ -20,8 +20,46 @@ set +o xtrace

 # extremely verbose.)

 DEBUG_LIBVIRT=$(trueorfalse True DEBUG_LIBVIRT)

+# Try to enable coredumps for libvirt

+# Currently fairly specific to OpenStackCI hosts

+DEBUG_LIBVIRT_COREDUMPS=$(trueorfalse False DEBUG_LIBVIRT_COREDUMPS)

+

+# Only Xenial is left with libvirt-bin.  Everywhere else is libvirtd

+if is_ubuntu && [ ! -f /etc/init.d/libvirtd ]; then

+    LIBVIRT_DAEMON=libvirt-bin

+else

+    LIBVIRT_DAEMON=libvirtd

+fi

+

+# Enable coredumps for libvirt

+#  Bug: https://bugs.launchpad.net/nova/+bug/1643911

+function _enable_coredump {

+    local confdir=/etc/systemd/system/${LIBVIRT_DAEMON}.service.d

+    local conffile=${confdir}/coredump.conf

+

+    # Create a coredump directory, and instruct the kernel to save to

+    # here

+    sudo mkdir -p /var/core

+    sudo chmod a+wrx /var/core

+    echo '/var/core/core.%e.%p.%h.%t' | \

+        sudo tee /proc/sys/kernel/core_pattern

+

+    # Drop a config file to up the core ulimit

+    sudo mkdir -p ${confdir}

+    sudo tee ${conffile} <<EOF

+[Service]

+LimitCORE=infinity

+EOF

+

+    # Tell systemd to reload the unit (service restarts later after

+    # config anyway)

+    sudo systemctl daemon-reload

+}

+

+

 # Installs required distro-specific libvirt packages.

 function install_libvirt {

+

     if is_ubuntu; then

         install_package qemu-system

         install_package libvirt-bin libvirt-dev

@@ -48,7 +86,10 @@ function install_libvirt {

         install_package libvirt libvirt-devel

         pip_install_gr libvirt-python

+    fi

+    if [[ $DEBUG_LIBVIRT_COREDUMPS == True ]]; then

+        _enable_coredump

     fi

 }

@@ -68,14 +109,6 @@ cgroup_device_acl = [

 EOF

     fi

-    # Since the release of Debian Wheezy the libvirt init script is libvirtd

-    # and not libvirtd-bin anymore.

-    if is_ubuntu && [ ! -f /etc/init.d/libvirtd ]; then

-        LIBVIRT_DAEMON=libvirt-bin

-    else

-        LIBVIRT_DAEMON=libvirtd

-    fi

-

     if is_fedora || is_suse; then

         # Starting with fedora 18 and opensuse-12.3 enable stack-user to

         # virsh -c qemu:///system by creating a policy-kit rule for

@@ -223,6 +223,14 @@ def guru_meditation_reports():

         print("guru meditation report in %s log" % service)

+def var_core():

+    if os.path.exists('/var/core'):

+        _header("/var/core dumps")

+        # NOTE(ianw) : see DEBUG_LIBVIRT_COREDUMPS.  We could think

+        # about getting backtraces out of these.  There are other

+        # tools out there that can do that sort of thing though.

+        _dump_cmd("ls -ltrah /var/core")

+

 def main():

     opts = get_options()

     fname = filename(opts.dir, opts.name)

@@ -238,6 +246,7 @@ def main():

         ebtables_dump()

         compute_consoles()

         guru_meditation_reports()

+        var_core()

 if __name__ == '__main__':