[libvirt] [PATCH 4/7] Report qemu log data if we fail to daemonize the process.

[Cole Robinson]

This ensures the user will actually see 'hook' function error output.
---
 src/qemu_driver.c |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/qemu_driver.c b/src/qemu_driver.c
index cc510b2..5200532 100644
--- a/src/qemu_driver.c
+++ b/src/qemu_driver.c
@@ -1456,8 +1456,17 @@ static int qemudStartVMDaemon(virConnectPtr conn,
                              _("Domain %s didn't show up\n"), vm->def->name);
             ret = -1;
         }
-    } else
-        ret = -1;
+    } else if (ret == -2) {
+        /* The virExec process that launches the daemon failed. Pending on
+         * when it failed (we can't determine for sure), there may be
+         * extra info in the domain log (if the hook failed for example).
+         *
+         * Pretend like things succeeded, and let 'WaitForMonitor' report
+         * the log contents for us.
+         */
+        vm->pid = child;
+        ret = 0;
+    }
 
     vm->state = migrateFrom ? VIR_DOMAIN_PAUSED : VIR_DOMAIN_RUNNING;
 
-- 
1.6.2.2