2015-11-28 21:45 GMT+09:00 Nikolay Aleksandrov <ra...@blackwall.org>: > From: Nikolay Aleksandrov <niko...@cumulusnetworks.com> > > This module allows to insert errors in some of netdevice's notifier > events. All network drivers use these notifiers to signal various events > and to check if they are allowed, e.g. PRECHANGEMTU and CHANGEMTU > afterwards. Until recently I had to run failure tests by injecting > a custom module, but now this infrastructure makes it trivial to test > these failure paths. Some of the recent bugs I fixed were found using > this module. > Here's an example: > $ cd /sys/kernel/debug/notifier-error-inject/netdev > $ echo -22 > actions/NETDEV_CHANGEMTU/error > $ ip link set eth0 mtu 1024 > RTNETLINK answers: Invalid argument
This patch looks good to me. It would be nice if you add tools like tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh for this feature. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
