[gnome-continuous-yocto/gnomeostree-3.28-rocko: 7703/8267] qemurunner.py: wait for PID to appear in procfs

[Emmanuele Bassi <ebassi src gnome org>]

commit 03aa1ef733032e1acae4d291580968301679117f
Author: Juro Bystricky <juro bystricky intel com>
Date:   Tue Sep 12 12:23:27 2017 -0700

    qemurunner.py: wait for PID to appear in procfs
    
    We need QEMU PID in order to access "/proc/<qemupid>/cmdline"
    Having a valid QEMU PID does not mean we can access the proc entry
    immediately, we need to wait for the /proc/<qemupid> to appear
    before we can access it.
    
    (From OE-Core rev: d2d069fa9910d1c7a94c898355a63fca03ec5ad8)
    
    Signed-off-by: Juro Bystricky <juro bystricky intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/lib/oeqa/utils/qemurunner.py |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py
index 9073315..427ae23 100644
--- a/meta/lib/oeqa/utils/qemurunner.py
+++ b/meta/lib/oeqa/utils/qemurunner.py
@@ -394,9 +394,10 @@ class QemuRunner:
             f = open(self.qemu_pidfile, 'r')
             qemu_pid = f.read()
             f.close()
-            #logger.info("qemu_pid: %s" % qemu_pid)
-            self.qemupid = int(qemu_pid)
-            return True
+            qemupid = int(qemu_pid)
+            if os.path.exists("/proc/" + str(qemupid)):
+                self.qemupid = qemupid
+                return True
         return False
 
     def run_serial(self, command, raw=False, timeout=5):