This patch tries to get the content of guest serial and log it into
the debug directoy of the testcase through a dedicated thread which is
created in the preprocessing and ended in the postprocessing. The
params of serial_mode must be set to "dump" in order to make use of
this feature.
Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
---
client/tests/kvm/kvm_preprocessing.py | 59 +++++++++++++++++++++++++++++++-
client/tests/kvm/tests_base.cfg.sample | 1 +
2 files changed, 59 insertions(+), 1 deletions(-)
diff --git a/client/tests/kvm/kvm_preprocessing.py b/client/tests/kvm/kvm_preprocessing.py
index 4b9290c..0a33d24 100644
--- a/client/tests/kvm/kvm_preprocessing.py
+++ b/client/tests/kvm/kvm_preprocessing.py
@@ -1,4 +1,5 @@
import sys, os, time, commands, re, logging, signal, glob, threading, shutil
+import socket, select
from autotest_lib.client.bin import test, utils
from autotest_lib.client.common_lib import error
import kvm_vm, kvm_utils, kvm_subprocess, ppm_utils
@@ -13,7 +14,8 @@ except ImportError:
_screendump_thread = None
_screendump_thread_termination_event = None
-
+_serialdump_thread = None
+_serialdump_thread_termination_event = None
def preprocess_image(test, params):
"""
@@ -267,6 +269,16 @@ def preprocess(test, params, env):
args=(test, params, env))
_screendump_thread.start()
+ # Start the serial dump thread
+ if params.get("serial_mode") == "dump":
+ logging.debug("Starting serialdump thread")
+ global _serialdump_thread, _serialdump_thread_termination_event
+ _serialdump_thread_termination_event = threading.Event()
+ _serialdump_thread = threading.Thread(target=_dump_serial_console,
+ args=(test, params, env))
+ _serialdump_thread.start()
+
+
def postprocess(test, params, env):
"""
@@ -286,6 +298,13 @@ def postprocess(test, params, env):
_screendump_thread_termination_event.set()
_screendump_thread.join(10)
+ # Terminate the serialdump thread
+ global _serialdump_thread, _serialdump_thread_termination_event
+ if _serialdump_thread:
+ logging.debug("Terminating serialdump thread...")
+ _serialdump_thread_termination_event.set()
+ _serialdump_thread.join(10)
+
# Warn about corrupt PPM files
for f in glob.glob(os.path.join(test.debugdir, "*.ppm")):
if not ppm_utils.image_verify_ppm_file(f):
@@ -450,3 +469,41 @@ def _take_screendumps(test, params, env):
if _screendump_thread_termination_event.isSet():
break
_screendump_thread_termination_event.wait(delay)
+
+def _dump_serial_console(test, params, env):
+ global _serialdump_thread_termination_event
+ rs = []
+ files = {}
+
+ while True:
+ for vm in kvm_utils.env_get_all_vms(env):
+ if not vm in files and not vm.is_dead():
+ try:
+ serial_socket = socket.socket(socket.AF_UNIX,
+ socket.SOCK_STREAM)
+ serial_socket.setblocking(False)
+ serial_socket.connect(vm.serial_file_name)
+ except:
+ logging.debug("Could not connect to serial socket for %s" %
+ vm.name)
+ continue
+ rs.append(serial_socket)
+ serial_dump_filename = os.path.join(test.debugdir,
+ "serial-%s" % vm.name)
+ files[vm] = [serial_socket, file(serial_dump_filename, "a+")]
+
+ r, w, x = select.select(rs, [], [], 0.5)
+ for vm in files.keys():
+ (s ,d) = files[vm]
+ if s in r:
+ data = s.recv(16384)
+ if not data:
+ rs.remove(s)
+ files.pop(vm)
+ else:
+ d.write(data)
+
+ if _serialdump_thread_termination_event.isSet():
+ break
+
+
diff --git a/client/tests/kvm/tests_base.cfg.sample b/client/tests/kvm/tests_base.cfg.sample
index 9f82ffb..169a69e 100644
--- a/client/tests/kvm/tests_base.cfg.sample
+++ b/client/tests/kvm/tests_base.cfg.sample
@@ -13,6 +13,7 @@ start_vm = yes
kill_vm = no
kill_vm_gracefully = yes
kill_unresponsive_vms = yes
+serial_mode = dump
# Screendump specific stuff
convert_ppm_files_to_png_on_error = yes
--
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