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selftests: bonding: cause oops in bond_rr_gen_slave_id

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This bonding selftest used to cause a kernel oops on aarch64
and should be architectures agnostic.

Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jonathan Toppins 2022-09-20 13:45:51 -04:00 committed by Jakub Kicinski
parent 0e400d602f
commit 2ffd57327f
2 changed files with 51 additions and 1 deletions
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3
tools/testing/selftests/drivers/net/bonding/Makefile
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@ -2,7 +2,8 @@
# Makefile for net selftests
TEST_PROGS := bond-break-lacpdu-tx.sh \
dev_addr_lists.sh
dev_addr_lists.sh \
bond-arp-interval-causes-panic.sh
TEST_FILES := lag_lib.sh

49
tools/testing/selftests/drivers/net/bonding/bond-arp-interval-causes-panic.sh Executable file
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@ -0,0 +1,49 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# cause kernel oops in bond_rr_gen_slave_id
DEBUG=${DEBUG:-0}
set -e
test ${DEBUG} -ne 0 && set -x
finish()
{
ip netns delete server || true
ip netns delete client || true
ip link del link1_1 || true
}
trap finish EXIT
client_ip4=192.168.1.198
server_ip4=192.168.1.254
# setup kernel so it reboots after causing the panic
echo 180 >/proc/sys/kernel/panic
# build namespaces
ip link add dev link1_1 type veth peer name link1_2
ip netns add "server"
ip link set dev link1_2 netns server up name eth0
ip netns exec server ip addr add ${server_ip4}/24 dev eth0
ip netns add "client"
ip link set dev link1_1 netns client down name eth0
ip netns exec client ip link add dev bond0 down type bond mode 1 \
miimon 100 all_slaves_active 1
ip netns exec client ip link set dev eth0 down master bond0
ip netns exec client ip link set dev bond0 up
ip netns exec client ip addr add ${client_ip4}/24 dev bond0
ip netns exec client ping -c 5 $server_ip4 >/dev/null
ip netns exec client ip link set dev eth0 down nomaster
ip netns exec client ip link set dev bond0 down
ip netns exec client ip link set dev bond0 type bond mode 0 \
arp_interval 1000 arp_ip_target "+${server_ip4}"
ip netns exec client ip link set dev eth0 down master bond0
ip netns exec client ip link set dev bond0 up
ip netns exec client ping -c 5 $server_ip4 >/dev/null
exit 0