tree f6a954dce0e90d7e84c0c7defed9024a55a33722
parent a6f08eb1f5aad18577a3e5cf4123bc63d00ce1a2
author J. Richard Barnette <jrbarnette@chromium.org> 1398802081 -0700
committer Richard Barnette <jrbarnette@chromium.org> 1398822169 +0000

Increase logging of check_ethernet.hook.

Prior to this change, the only message check_ethernet.hook wrote
to /var/log/messages was to report reboot.  Other interesting events
(such as attempting to restart the network) went unreported.  This
adds logging messages to check_ethernet.hook to report the first
time ping fails to reach the gateway, and again before attempting to
restart ethernet interfaces.

The motivation for this change is to increase visibility during
unexplained network outages on the DUT.

BUG=chromium:354944
TEST=run check_ethernet.hook on a DUT with and without a network

Change-Id: I77dfbfe51aee118c7802726379216948be45620f
Reviewed-on: https://chromium-review.googlesource.com/197529
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Prashanth B <beeps@chromium.org>