Re: [LKP] [mac80211] c752cac9db: hwsim.ap_vlan_iface_cleanup_multibss_per_sta_vif.fail

From: kernel test robot
Date: Thu Mar 07 2019 - 03:21:16 EST

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In reply to: kernel test robot: "Re: [LKP] [mac80211] c752cac9db: hwsim.ap_vlan_iface_cleanup_multibss_per_sta_vif.fail"
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On Thu, Mar 07, 2019 at 03:59:16PM +0800, kernel test robot wrote:
> On Thu, Mar 07, 2019 at 07:49:11AM +0000, Tony Chuang wrote:
> >
> >
> > > -----Original Message-----
> > > From: kernel test robot [mailto:rong.a.chen@xxxxxxxxx]
> > > Sent: Thursday, March 07, 2019 3:05 PM
> > > To: Tony Chuang
> > > Cc: Johannes Berg; Larry Finger; LKML; Linus Torvalds; lkp@xxxxxx
> > > Subject: [LKP] [mac80211] c752cac9db:
> > > hwsim.ap_vlan_iface_cleanup_multibss_per_sta_vif.fail
> > >
> > > FYI, we noticed the following commit (built with gcc-8):
> > >
> > > commit: c752cac9db1b0c469db7ba9d17af4ba708984db5 ("mac80211: fix
> > > GFP_KERNEL under tasklet context")
> > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> > >
> > > in testcase: hwsim
> > > with following parameters:
> > >
> > > group: hwsim-02
> > >
> > >
> > >
> > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2
> > > -m 4G
> > >
> > > caused below changes (please refer to attached dmesg/kmsg for entire
> > > log/backtrace):
> > >
> >
> > <...>
> >
> > >
> > > 2019-03-06 14:51:15 ./run-tests.py ap_vlan_iface_cleanup_multibss
> > > 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_vlan_iface_cleanup_multibss 1/1
> > > Test: AP VLAN operation in multi-BSS multi-VLAN case
> > > RTNETLINK answers: File exists
> > > Starting AP wlan4
> > > Starting interface wlan3
> > > Connect STA wlan0 to AP
> > > Connect STA wlan1 to AP
> > > wlan0 -> VLAN 2
> > > test wlan1 == VLAN 1
> > > wlan1 -> VLAN 2
> > > test wlan0 == VLAN 2
> > > PASS ap_vlan_iface_cleanup_multibss 3.037115 2019-03-06 14:51:19.362536
> > > passed all 1 test case(s)
> > > 2019-03-06 14:51:19 ./run-tests.py
> > > ap_vlan_iface_cleanup_multibss_per_sta_vif
> > > 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_vlan_iface_cleanup_multibss_per_sta_vif 1/1
> > > Test: AP VLAN operation in multi-BSS multi-VLAN case with per-sta-vif set
> > > Starting AP wlan4
> > > Starting interface wlan3
> > > Connect STA wlan0 to AP
> > > Connect STA wlan1 to AP
> > > dev1->dev2 unicast data delivery failed
> > > Traceback (most recent call last):
> > > File "./run-tests.py", line 466, in main
> > > t(dev, apdev)
> > > File "/lkp/benchmarks/hwsim/tests/hwsim/test_ap_vlan.py", line 505, in
> > > test_ap_vlan_iface_cleanup_multibss_per_sta_vif
> > > 'multi-bss-iface-per_sta_vif.conf')
> > > File "/lkp/benchmarks/hwsim/tests/hwsim/test_ap_vlan.py", line 413, in
> > > ap_vlan_iface_cleanup_multibss
> > > hwsim_utils.test_connectivity_iface(dev[1], hapd1, "brvlan1")
> > > File "/lkp/benchmarks/hwsim/tests/hwsim/hwsim_utils.py", line 176, in
> > > test_connectivity_iface
> > > max_tries=max_tries, timeout=timeout)
> > > File "/lkp/benchmarks/hwsim/tests/hwsim/hwsim_utils.py", line 169, in
> > > test_connectivity
> > > raise Exception(last_err)
> > > Exception: dev1->dev2 unicast data delivery failed
> > > FAIL ap_vlan_iface_cleanup_multibss_per_sta_vif 6.917146 2019-03-06
> > > 14:51:26.784664
> > > passed 0 test case(s)
> > > skipped 0 test case(s)
> > > failed tests: ap_vlan_iface_cleanup_multibss_per_sta_vif
> >
> > <...>
> >
> > >
> > >
> > > To reproduce:
> > >
> > > # build kernel
> > > cd linux
> > > cp config-4.19.0-12453-gc752cac .config
> > > make HOSTCC=gcc-8 CC=gcc-8 ARCH=x86_64 olddefconfig
> > > make HOSTCC=gcc-8 CC=gcc-8 ARCH=x86_64 prepare
> > > make HOSTCC=gcc-8 CC=gcc-8 ARCH=x86_64 modules_prepare
> > > make HOSTCC=gcc-8 CC=gcc-8 ARCH=x86_64 SHELL=/bin/bash
> > > make HOSTCC=gcc-8 CC=gcc-8 ARCH=x86_64 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
> >
> >
> > It looks really strange that this patch failed the test.
> > And I checked the dmesg, the log shows me that
> >
> > PASS ap_vlan_iface_cleanup_multibss_per_sta_vif
> >
> > At line 24000.
>
> Hi,
>
> This doesn't happen every time. Here is a bad result:
>
> 2019-03-06 14:51:19 ./run-tests.py ap_vlan_iface_cleanup_multibss_per_sta_vif
> 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_vlan_iface_cleanup_multibss_per_sta_vif 1/1
> Test: AP VLAN operation in multi-BSS multi-VLAN case with per-sta-vif set
> Starting AP wlan4
> Starting interface wlan3
> Connect STA wlan0 to AP
> Connect STA wlan1 to AP
> dev1->dev2 unicast data delivery failed
> Traceback (most recent call last):
> File "./run-tests.py", line 466, in main
> t(dev, apdev)
> File "/lkp/benchmarks/hwsim/tests/hwsim/test_ap_vlan.py", line 505, in test_ap_vlan_iface_cleanup_multibss_per_sta_vif
> 'multi-bss-iface-per_sta_vif.conf')
> File "/lkp/benchmarks/hwsim/tests/hwsim/test_ap_vlan.py", line 413, in ap_vlan_iface_cleanup_multibss
> hwsim_utils.test_connectivity_iface(dev[1], hapd1, "brvlan1")
> File "/lkp/benchmarks/hwsim/tests/hwsim/hwsim_utils.py", line 176, in test_connectivity_iface
> max_tries=max_tries, timeout=timeout)
> File "/lkp/benchmarks/hwsim/tests/hwsim/hwsim_utils.py", line 169, in test_connectivity
> raise Exception(last_err)
> Exception: dev1->dev2 unicast data delivery failed
> FAIL ap_vlan_iface_cleanup_multibss_per_sta_vif 6.917146 2019-03-06 14:51:26.784664
> passed 0 test case(s)
> skipped 0 test case(s)
> failed tests: ap_vlan_iface_cleanup_multibss_per_sta_vif
>

Sorry, ap_vlan_iface_cleanup_multibss_per_sta_vif.fail is this one, but hwsim.ap_wpa2_eap_aka_sql fails too.
the kernel of parent commit can't run successfully, I'm not 100% sure the failure was caused by this commit.

81c5dce2cd0bb0ec c752cac9db1b0c469db7ba9d17a
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
:90 14% 13:91 hwsim.ap_vlan_iface_cleanup_multibss_per_sta_vif.fail
:90 9% 8:91 stderr.Failed_to_connect_to_hostapd-wpa_ctrl_open:No_such_file_or_directory
90:90 -100% :91 dmesg.BUG:sleeping_function_called_from_invalid_context_at_mm/slab.h
:90 6% 5:91 dmesg.RIP:__ieee80211_beacon_get[mac80211]
:90 1% 1:91 dmesg.RIP:console_unlock
:90 6% 5:91 dmesg.WARNING:at_net/mac80211/tx.c:#__ieee80211_beacon_get/0x
90:90 -94% 5:91 dmesg.boot_failures
21732:90 -24148% :91 dmesg.timestamp:BUG:sleeping_function_called_from_invalid_context_at_mm/slab.h
:90 14125% 12712:91 dmesg.timestamp:RIP:__ieee80211_beacon_get[mac80211]
:90 3137% 2822:91 dmesg.timestamp:RIP:console_unlock
:90 14125% 12712:91 dmesg.timestamp:WARNING:at_net/mac80211/tx.c:#__ieee80211_beacon_get/0x
22439:90 70264% 85676:91 dmesg.timestamp:last

Best Regards,
Rong Chen

Next message: Tong Bo: "[PATCH] selftests/x86: Support Atom for syscall_arg_fault test"
Previous message: Jani Nikula: "Re: [PATCH] drm/i915/ddi: Fix default eDP detection on port A"
In reply to: kernel test robot: "Re: [LKP] [mac80211] c752cac9db: hwsim.ap_vlan_iface_cleanup_multibss_per_sta_vif.fail"
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