[linux-next:master] [rtnetlink] 8c6540cb2d: hwsim.mesh_sae_failure.fail

[linux-next:master] [rtnetlink] 8c6540cb2d: hwsim.mesh_sae_failure.fail

[kernel test robot]

Hello,

kernel test robot noticed "hwsim.mesh_sae_failure.fail" on:

commit: 8c6540cb2d020c59b6f7013a2e8a13832906eee0 ("rtnetlink: print rtnl_mutex holder/waiter for debug purpose")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master 6906a84c482f098d31486df8dc98cead21cce2d0]

in testcase: hwsim
version: hwsim-x86_64-07c9f183e-1_20240402
with following parameters:

	test: mesh_sae_failure



compiler: gcc-13
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4790 v3 @ 3.60GHz (Haswell) with 6G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)




If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202406141644.c05809af-oliver.sang@intel.com

group: group-20, test: mesh_sae_failure
2024-06-14 04:11:22 export USER=root
2024-06-14 04:11:22 ./build.sh
Building TNC testing tools
Building wlantest
Building hs20-osu-client
Building hostapd
Building wpa_supplicant
2024-06-14 04:12:20 ./start.sh
2024-06-14 04:12:24 ./run-tests.py mesh_sae_failure
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 mesh_sae_failure 1/1
Test: Mesh and local SAE failures
Pending failures at time of exception: 0:auth_sae_init_committed;mesh_rsn_auth_sae_sta
Test exception: Remote peer did not connect.
Traceback (most recent call last):
  File "/lkp/benchmarks/hwsim/tests/hwsim/./run-tests.py", line 591, in main
    t(dev, apdev)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_wpas_mesh.py", line 1942, in test_mesh_sae_failure
    check_mesh_connected2(dev)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_wpas_mesh.py", line 136, in check_mesh_connected2
    check_mesh_peer_connected(dev[1])
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_wpas_mesh.py", line 122, in check_mesh_peer_connected
    raise Exception("Test exception: Remote peer did not connect.")
Exception: Test exception: Remote peer did not connect.
FAIL mesh_sae_failure 41.682039 2024-06-14 04:13:15.904346
passed 0 test case(s)
skipped 0 test case(s)
failed tests: mesh_sae_failure
2024-06-14 04:13:15 ./stop.sh



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240614/202406141644.c05809af-oliver.sang@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [linux-next:master] [rtnetlink] 8c6540cb2d: hwsim.mesh_sae_failure.fail

[Tetsuo Handa]

On 2024/06/14 17:48, kernel test robot wrote:
> kernel test robot noticed "hwsim.mesh_sae_failure.fail" on:
> 
> commit: 8c6540cb2d020c59b6f7013a2e8a13832906eee0 ("rtnetlink: print rtnl_mutex holder/waiter for debug purpose")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
> 
> [test failed on linux-next/master 6906a84c482f098d31486df8dc98cead21cce2d0]
> 
> in testcase: hwsim
> version: hwsim-x86_64-07c9f183e-1_20240402
> with following parameters:
> 
> 	test: mesh_sae_failure
> 

That patch adds debug printk(). But dmesg.xz does not include printk() messages from
that patch nor any oops-like messages. What went wrong?

Re: [linux-next:master] [rtnetlink] 8c6540cb2d: hwsim.mesh_sae_failure.fail

[Oliver Sang]

hi, Tetsuo Handa,

On Fri, Jun 14, 2024 at 06:34:13PM +0900, Tetsuo Handa wrote:
> On 2024/06/14 17:48, kernel test robot wrote:
> > kernel test robot noticed "hwsim.mesh_sae_failure.fail" on:
> > 
> > commit: 8c6540cb2d020c59b6f7013a2e8a13832906eee0 ("rtnetlink: print rtnl_mutex holder/waiter for debug purpose")
> > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
> > 
> > [test failed on linux-next/master 6906a84c482f098d31486df8dc98cead21cce2d0]
> > 
> > in testcase: hwsim
> > version: hwsim-x86_64-07c9f183e-1_20240402
> > with following parameters:
> > 
> > 	test: mesh_sae_failure
> > 
> 
> That patch adds debug printk(). But dmesg.xz does not include printk() messages from
> that patch nor any oops-like messages. What went wrong?
> 

sorr that we don't have enough knowledge to connect the issue with code change.
we just rebuild kernels for this commit and its parent, confirmed they are still
built with the config we shared in the link in our original report, then rerun
the tests, found still clean on parent, but reproduciable on this commit.

this is just FYI what we observed in our tests. if you want to look at this
further and you have a debug patch, we could do more tests with it. Thanks

9dcaf7df2635eb1c 8c6540cb2d020c59b6f7013a2e8
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :15          87%          15:15    hwsim.mesh_sae_failure.fail