linux-kernel - Re: [lkp-robot] [mac80211] cd1a0cdbf9: hwsim.ap_cipher

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Message-ID: <1507795437.1998.70.camel@sipsolutions.net>
Date:   Thu, 12 Oct 2017 10:03:57 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     kernel test robot <xiaolong.ye@...el.com>,
        Xiang Gao <qasdfgtyuiop@...il.com>
Cc:     davem@...emloft.net, linux-kernel@...r.kernel.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org, lkp@...org
Subject: Re: [lkp-robot] [mac80211]  cd1a0cdbf9: hwsim.ap_cipher_bip.fail

Hi,

Thanks for the report.

On Thu, 2017-10-12 at 14:19 +0800, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-6):
> 
> commit: cd1a0cdbf9ada9bb975d8730a375bc13824ef065 ("mac80211: aead api to reduce redundancy")

I guess the commit isn't actually an upstream commit, but one the robot
made when applying the patch?

> url: https://github.com/0day-ci/linux/commits/Xiang-Gao/mac80211-aead-api-to-reduce-redundancy/20170929-140556

This URL doesn't work (any more?)

> 2017-10-05 23:08:27 	./run-tests.py ap_cipher_bip 
> 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 ap_cipher_bip 1/1
> Test: WPA2-PSK with BIP
> Starting AP wlan3
> Connect STA wlan0 to AP
> dev1->dev2 unicast data delivery failed
> Traceback (most recent call last):
>   File "./run-tests.py", line 453, in main
>     t(dev, apdev)
>   File "/lkp/benchmarks/hwsim/tests/hwsim/test_ap_ciphers.py", line
> 279, in test_ap_cipher_bip
>     check_group_mgmt_cipher(dev[0], apdev[0], "AES-128-CMAC")
>   File "/lkp/benchmarks/hwsim/tests/hwsim/test_ap_ciphers.py", line
> 51, in check_group_mgmt_cipher
>     hwsim_utils.test_connectivity(dev, hapd)
>   File "/lkp/benchmarks/hwsim/tests/hwsim/hwsim_utils.py", line 165,
> in test_connectivity
>     raise Exception(last_err)
> Exception: dev1->dev2 unicast data delivery failed
> FAIL ap_cipher_bip 5.24306 2017-10-05 23:08:32.620542

[... similar results ...]

As on the previous version of this report (which had different test
cases failing IIRC), I can't reproduce this on my tree, even with your
kernel config. Since I can't actually look at the tree state that you
had (mac80211-next + patch, but which mac80211-next?), I can't
reproduce entirely.

johannes