diff options
| -rw-r--r-- | meta/lib/oeqa/utils/qemurunner.py | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py index c16227fc38..68684aeb8a 100644 --- a/meta/lib/oeqa/utils/qemurunner.py +++ b/meta/lib/oeqa/utils/qemurunner.py @@ -425,13 +425,20 @@ class QemuRunner: if not self.runqemu or self.runqemu.poll() is not None: return False if os.path.isfile(self.qemu_pidfile): - f = open(self.qemu_pidfile, 'r') - qemu_pid = f.read() - f.close() - qemupid = int(qemu_pid) - if os.path.exists("/proc/" + str(qemupid)): - self.qemupid = qemupid - return True + # when handling pidfile, qemu creates the file, stat it, lock it and then write to it + # so it's possible that the file has been created but the content is empty + pidfile_timeout = time.time() + 3 + while time.time() < pidfile_timeout: + with open(self.qemu_pidfile, 'r') as f: + qemu_pid = f.read().strip() + # file created but not yet written contents + if not qemu_pid: + time.sleep(0.5) + continue + else: + if os.path.exists("/proc/" + qemu_pid): + self.qemupid = int(qemu_pid) + return True return False def run_serial(self, command, raw=False, timeout=60): |