linux_dsm_epyc7002/tools/testing
Sean Tranchetti 541c22aad3 tools: selftests: add test for changing routes with PTMU exceptions
[ Upstream commit 5316a7c0130acf09bfc8bb0092407006010fcccc ]

Adds new 2 new tests to the PTMU script: pmtu_ipv4/6_route_change.

These tests explicitly test for a recently discovered problem in the
IPv6 routing framework where PMTU exceptions were not properly released
when replacing a route via "ip route change ...".

After creating PMTU exceptions, the route from the device A to R1 will be
replaced with a new route, then device A will be deleted. If the PMTU
exceptions were properly cleaned up by the kernel, this device deletion
will succeed. Otherwise, the unregistration of the device will stall, and
messages such as the following will be logged in dmesg:

unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 4

Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/1609892546-11389-2-git-send-email-stranche@quicinc.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-17 14:16:56 +01:00
..
fault-injection docs: fault-injection: convert docs to ReST and rename to *.rst 2019-06-14 14:21:07 -06:00
ktest ktest.pl: Fix the logic for truncating the size of the log file for email 2020-12-21 13:30:06 +01:00
kunit kunit: tool: fix extra trailing \n in raw + parsed test output 2020-11-10 13:44:35 -07:00
nvdimm device-dax: add dis-contiguous resource support 2020-10-13 18:38:28 -07:00
radix-tree ida: Free allocated bitmap in error path 2020-10-07 09:11:33 -04:00
scatterlist tools/testing/scatterlist: Fix test to compile and run 2020-11-17 20:02:20 -04:00
selftests tools: selftests: add test for changing routes with PTMU exceptions 2021-01-17 14:16:56 +01:00
vsock SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00