netdev - Re: [linux-next:master] [selftests] 59dd07db92: kernel-selftests.drivers/net.queues.py.fail

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Message-ID: <bf24709c-41a0-4975-98cd-651181d33b75@gmail.com>
Date: Thu, 29 May 2025 11:06:17 +0700
From: Bui Quang Minh <minhquangbui99@...il.com>
To: Jakub Kicinski <kuba@...nel.org>,
 kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, "Michael S. Tsirkin"
 <mst@...hat.com>, netdev@...r.kernel.org
Subject: Re: [linux-next:master] [selftests] 59dd07db92:
 kernel-selftests.drivers/net.queues.py.fail

On 5/29/25 07:58, Jakub Kicinski wrote:
> On Wed, 28 May 2025 15:43:17 +0700 Bui Quang Minh wrote:
>>> 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@...el.com>
>>> | Closes: https://lore.kernel.org/oe-lkp/202505281004.6c3d0188-lkp@intel.com
>>>
>>>
>>>
>>> # timeout set to 300
>>> # selftests: drivers/net: queues.py
>>> # TAP version 13
>>> # 1..4
>>> # ok 1 queues.get_queues
>>> # ok 2 queues.addremove_queues
>>> # ok 3 queues.check_down
>>> # # Exception| Traceback (most recent call last):
>>> # # Exception|   File "/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-59dd07db92c166ca3947d2a1bf548d57b7f03316/tools/testing/selftests/net/lib/py/ksft.py", line 223, in ksft_run
>>> # # Exception|     case(*args)
>>> # # Exception|   File "/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-59dd07db92c166ca3947d2a1bf548d57b7f03316/tools/testing/selftests/drivers/net/./queues.py", line 33, in check_xsk
>>> # # Exception|     raise KsftFailEx('unable to create AF_XDP socket')
>>> # # Exception| net.lib.py.ksft.KsftFailEx: unable to create AF_XDP socket
>>> # not ok 4 queues.check_xsk
>>> # # Totals: pass:3 fail:1 xfail:0 xpass:0 skip:0 error:0
>>> not ok 7 selftests: drivers/net: queues.py # exit=1
>>>
>>>
>>>
>>> The kernel config and materials to reproduce are available at:
>>> https://download.01.org/0day-ci/archive/20250528/202505281004.6c3d0188-lkp@intel.com
>> Looking at the log file, it seems like the xdp_helper in net/lib is not
>> compiled so calling this helper from the test fails. There is similar
>> failures where xdp_dummy.bpf.o in net/lib is not compiled either.
>>
>> Error opening object
>> /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-59dd07db92c166ca3947d2a1bf548d57b7f03316/tools/testing/selftests/net/lib/xdp_dummy.bpf.o:
>> No such file or directory
>>
>> I'm still not sure what the root cause is. On my machine, these files
>> are compiled correctly.
> Same here. The get built and installed correctly for me.
> Oliver Sang, how does LKP build the selftests? I've looked at the
> artifacts and your repo for 10min, I can't find it.
> The net/lib has a slightly special way of getting included, maybe
> something goes wrong with that.

I understand why now. Normally, this command is used to run test
pwd: tools/testing/selftests
make TARGETS="drivers/net" run_tests

The LKP instead runs this
make quicktest=1 run_tests -C drivers/net

So the Makefile in tools/testing/selftests is not triggered and net/lib 
is not included either.

Thanks,
Quang Minh.