linux-kernel - [mac80211_hwsim] 148fe295b7: hwsim.ap_long

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Message-ID: <20201002082945.GJ393@shao2-debian>
Date:   Fri, 2 Oct 2020 16:29:45 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Thomas Pedersen <thomas@...pt-ip.com>
Cc:     Johannes Berg <johannes.berg@...el.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com
Subject: [mac80211_hwsim] 148fe295b7: hwsim.ap_long_preamble.fail

Greeting,

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

commit: 148fe295b7d9d892b2b0f47070233ccdc70c83cd ("mac80211_hwsim: indicate support for S1G")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master


in testcase: hwsim
version: hwsim-x86_64-6eb6cf0-1_20200619
with following parameters:

	group: hwsim-04
	ucode: 0x21



on test machine: 8 threads Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz with 16G memory

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@...el.com>


2020-10-06 00:22:09 	./run-tests.py ap_long_preamble 
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_long_preamble 1/1
Test: AP with long preamble
Starting AP wlan3
Failed to enable hostapd interface wlan3
Traceback (most recent call last):
  File "./run-tests.py", line 533, in main
    t(dev, apdev)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_ap_params.py", line 821, in test_ap_long_preamble
    hapd = hostapd.add_ap(apdev[0], params)
  File "/lkp/benchmarks/hwsim/tests/hwsim/hostapd.py", line 581, in add_ap
    hapd.enable()
  File "/lkp/benchmarks/hwsim/tests/hwsim/hostapd.py", line 248, in enable
    raise Exception("Failed to enable hostapd interface " + self.ifname)
Exception: Failed to enable hostapd interface wlan3
FAIL ap_long_preamble 0.064398 2020-10-06 00:22:09.608978
passed 0 test case(s)
skipped 0 test case(s)
failed tests: ap_long_preamble


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Rong Chen


View attachment "config-5.9.0-rc6-02109-g148fe295b7d9d8" of type "text/plain" (170338 bytes)

View attachment "job-script" of type "text/plain" (5584 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (115156 bytes)

View attachment "hwsim" of type "text/plain" (56978 bytes)

View attachment "job.yaml" of type "text/plain" (4659 bytes)

View attachment "reproduce" of type "text/plain" (3924 bytes)