linux-kernel - Re: [PATCH v12 14/14] selftests/sgx: Add scripts for EPC cgroup testing

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Date: Tue, 16 Apr 2024 17:21:24 -0500
From: "Haitao Huang" <haitao.huang@...ux.intel.com>
To: dave.hansen@...ux.intel.com, kai.huang@...el.com, tj@...nel.org,
 mkoutny@...e.com, linux-kernel@...r.kernel.org, linux-sgx@...r.kernel.org,
 x86@...nel.org, cgroups@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
 bp@...en8.de, hpa@...or.com, sohil.mehta@...el.com,
 tim.c.chen@...ux.intel.com, "Jarkko Sakkinen" <jarkko@...nel.org>, "Haitao
 Huang" <haitao.huang@...ux.intel.com>
Cc: zhiquan1.li@...el.com, kristen@...ux.intel.com, seanjc@...gle.com,
 zhanb@...rosoft.com, anakrish@...rosoft.com, mikko.ylinen@...ux.intel.com,
 yangjie@...rosoft.com, chrisyan@...rosoft.com
Subject: Re: [PATCH v12 14/14] selftests/sgx: Add scripts for EPC cgroup
 testing

On Tue, 16 Apr 2024 17:04:21 -0500, Haitao Huang  
<haitao.huang@...ux.intel.com> wrote:

> On Tue, 16 Apr 2024 11:08:11 -0500, Jarkko Sakkinen <jarkko@...nel.org>  
> wrote:
>
>> On Tue Apr 16, 2024 at 5:54 PM EEST, Haitao Huang wrote:
>>> I did declare the configs in the config file but I missed it in my  
>>> patch
>>> as stated earlier. IIUC, that would not cause this error though.
>>>
>>> Maybe I should exit with the skip code if no CGROUP_MISC (no more
>>> CGROUP_SGX_EPC) is configured?
>>
>> OK, so I wanted to do a distro kernel test here, and used the default
>> OpenSUSE kernel config. I need to check if it has CGROUP_MISC set.
>>
>>> tools/testing/selftests$ find . -name README
>>> ./futex/README
>>> ./tc-testing/README
>>> ./net/forwarding/README
>>> ./powerpc/nx-gzip/README
>>> ./ftrace/README
>>> ./arm64/signal/README
>>> ./arm64/fp/README
>>> ./arm64/README
>>> ./zram/README
>>> ./livepatch/README
>>> ./resctrl/README
>>
>> So is there a README because of override timeout parameter? Maybe it
>> should be just set to a high enough value?
>>
>> BR, Jarkko
>>
>
>
>  From the docs, I think we are supposed to use override.
> See:  
> https://docs.kernel.org/dev-tools/kselftest.html#timeout-for-selftests
>
> Thanks
> Haitao
>

Maybe you are suggesting we add settings file? I can do that.
README also explains what the tests do though. Do you still think they  
should not exist?
I was mostly following resctrl as example.

Thanks
Haitao