Re: selftests/bpf: test_kmod.sh hangs on all devices

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Hi Naresh,

Please use shuah@xxxxxxxxxx for faster responses. I updated MAINTAINERS
entry a while back removing shuahkh@xxxxxxxxxxxxxxx address due to IT
infrastructure changes at Samsung.

On 10/08/2018 08:55 AM, Naresh Kamboju wrote:
> Daniel,
> 
> On Mon, 8 Oct 2018 at 18:58, Daniel Borkmann <daniel@xxxxxxxxxxxxx> wrote:
>>
>> On 10/08/2018 03:13 PM, Naresh Kamboju wrote:
>>> BPF test case test_kmod.sh hangs on all devices running linux next.
>>>
>>> + cd /opt/kselftests/default-in-kernel/bpf
>>> + ./test_kmod.sh
>>> sysctl: cannot stat /proc/sys/net/core/bpf_jit_enable: No such file or directory
>>> sysctl: cannot stat /proc/sys/net/core/bpf_jit_harden: No such file or directory
>>> sysctl: cannot stat /proc/sys/net/core/bpf_jit_enable: No such file or directory
>>> sysctl: cannot stat /proc/sys/net/core/bpf_jit_harden: No such file or directory
>>> [ JIT enabled:0 hardened:0 ]
>>>
>>> https://lkft.validation.linaro.org/scheduler/job/429726
>>>
>>> Test hangs started from 4.19.0-rc4-next-20180918.
>>> Linux version 4.19.0-rc4-next-20180918 (oe-user@oe-host) (gcc version
>>> 7.1.1 20170707 (Linaro GCC 7.1-2017.08)) #1 SMP Tue Sep 18 05:26:00
>>> UTC 2018
>>>
>>> History can be compared from this page.
>>> https://qa-reports.linaro.org/lkft/linux-next-oe/tests/kselftest/bpf_test_kmod.sh
>>>
>>> OTOH,
>>> There is a kernel BUG,
>>
>> This is quite an old linux-next kernel, should be fixed by 100811936f89 ("bpf: test_bpf:
>> add init_net to dev for flow_dissector"). Please make sure you have that commit included
>> in your testing:
> 
> I will re-validate on latest code base and let you know.
> 
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=100811936f89fd455eda1984810c09003550555b
> 
> Thanks for the quick reply.
> 

Great. Looks like this has been sorted. Thanks Daniel.

thanks,
-- Shuah



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