Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: e073cf2b3e0529efab7f0be441ebdcc45428f48d ("[PATCH v2 2/2] mac80211: allow rx of mesh eapol frames with default rx key")
url: https://github.com/0day-ci/linux/commits/Markus-Theil/Fixes-for-802-1X-in-mesh-mode/20200613-000022
base: https://git.kernel.org/cgit/linux/kernel/git/jberg/mac80211-next.git master

in testcase: hwsim
with following parameters:

	group: hwsim-33



on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):




If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@intel.com>




2020-06-14 18:00:19 	./run-tests.py wpas_mesh_dynamic_interface_remove 
DEV: wlan0: 02:00:00:00:00:00
DEV: wlan1: 02:00:00:00:01:00
DEV: wlan2: 02:00:00:00:02:00
APDEV: wlan3
APDEV: wlan4
START wpas_mesh_dynamic_interface_remove 1/1
Test: wpa_supplicant mesh with dynamic interface and removal
mesh5 address 42:00:00:00:05:00
dev1->dev2 unicast data delivery failed
Traceback (most recent call last):
  File "./run-tests.py", line 523, in main
    t(dev)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_wpas_mesh.py", line 789, in test_wpas_mesh_dynamic_interface_remove
    check_mesh_joined_connected([wpas5, dev[0]], connectivity=True)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_wpas_mesh.py", line 120, in check_mesh_joined_connected
    check_mesh_connected2(dev, timeout0=timeout0, connectivity=connectivity)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_wpas_mesh.py", line 116, in check_mesh_connected2
    hwsim_utils.test_connectivity(dev[0], dev[1])
  File "/lkp/benchmarks/hwsim/tests/hwsim/hwsim_utils.py", line 195, in test_connectivity
    raise Exception(last_err)
Exception: dev1->dev2 unicast data delivery failed
FAIL wpas_mesh_dynamic_interface_remove 6.713899 2020-06-14 18:00:26.839319
passed 0 test case(s)
skipped 0 test case(s)
failed tests: wpas_mesh_dynamic_interface_remove



To reproduce:

        # build kernel
	cd linux
	cp config-5.7.0-rc6-02487-ge073cf2b3e052 .config
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
Rong Chen