Selenium chrome crashes in jenkins slave

Question

Im trying to run UI tests using selenium in headless mode. I see the chrome is browser is crashing whenever i try to load the driver. Here are the traceback.

Traceback (most recent call last):
        File "/usr/local/lib/python3.5/dist-packages/behave/model.py", line 1456, in run
          match.run(runner.context)
        File "/usr/local/lib/python3.5/dist-packages/behave/model.py", line 1903, in run
          self.func(context, *args, **kwargs)
        File "steps/collectorUi.py", line 35, in step_impl
          assert context.ndpUt.driverInit(title="Pegasus Portal") is not False, 'Initial page title didnt match'
        File "../collectorSanity/libs/ndpUi.py", line 91, in driverInit
          browser=self.browser)
        File "../runner/testutils/seleniumutils.py", line 70, in __init__
          executable_path=self.browserPath+self.browserDriver)
        File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/chrome/webdriver.py", line 69, in __init__
          desired_capabilities=desired_capabilities)
        File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/webdriver.py", line 90, in __init__
          self.start_session(desired_capabilities, browser_profile)
        File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/webdriver.py", line 177, in start_session
          response = self.execute(Command.NEW_SESSION, capabilities)
        File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/webdriver.py", line 236, in execute
          self.error_handler.check_response(response)
        File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/errorhandler.py", line 192, in check_response
          raise exception_class(message, screen, stacktrace)
      selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: crashed
        (Driver info: chromedriver=2.29.461571 (8a88bbe0775e2a23afda0ceaf2ef7ee74e822cc5),platform=Linux 4.2.0-16-generic x86_64)

I have installed xvfb and google-chrome on ubuntu. The following are environment variables I tried to set before running the tests.

Env:

export DISPLAY=:10
nohup sudo Xvfb :10 -ac -screen 0 1900x980x24 &

When i run in docker container, Im get the following errors.

jenkins@26cccde068c0:~/e2e$ nohup sudo Xvfb :10 -ac -screen 0 1900x980x24 &
_XSERVTransmkdir: Owner of /tmp/.X11-unix should be set to root
(EE) 
Fatal server error:
(EE) Server is already active for display 10
    If this server is no longer running, remove /tmp/.X10-lock
    and start again.
(EE) 

In the selenium library, the following are display and parameters of chrome driver.

from pyvirtualdisplay import Display
from selenium import webdriver

class SeleniumUi(object):
     def __init__(self, ....):

         if isHeadless:
            self.display = Display(visible=0, size=(1900, 980))
            self.display.start()
        # secure
        if secure:
            self.webpage = 'https://{}{}'.format(self.hostname, webpageUri)
        else:
            self.webpage = 'http://{}{}'.format(self.hostname, webpageUri)
        # firefox options
        if self.browser.lower() == 'firefox':
            if ignoreCert:
                # ignoring the certs
                self.profile = webdriver.FirefoxProfile()
                self.profile.accept_untrusted_certs = True
                self.driver = webdriver.Firefox(firefox_profile=self.profile)
            else:
                self.driver = webdriver.Firefox()
        # chrome options
        elif self.browser.lower() == 'chrome':
            #os.system('killall -9 chromedriver')
            self.options = webdriver.ChromeOptions()
            self.options.add_argument('--dns-prefetch-disable')
            #self.options.add_argument("--disable-extensions") # don't delete this
            self.options.add_argument('--disable-web-security')
            self.options.add_argument('--window-size=1400,900')
            #self.options.add_argument('--allow-file-access-from-files')
            #self.options.add_argument('--allow-file-access')
            #self.options.add_argument('--allow-cross-origin-auth-prompt')
            #self.options.add_argument('--allow-control-allow-origin')
            #self.options.add_argument('--allow-control-allow-methods')
            #self.options.add_argument('--allow-control-allow-headers')
            #self.options.add_argument('--disable-default-apps')
            if ignoreCert:
                # ignoring the certs
                self.options.add_argument('--ignore-certificate-errors')
            log.debug('browserPath:{} browserDriver:{}'.format(self.browserPath, self.browserDriver))
            self.driver = webdriver.Chrome(chrome_options=self.options,
                                           executable_path=self.browserPath+self.browserDriver)

Kindly let me know what could be the issue. Thanks in advance.