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Re: About FAILs in the internal testsuite


Hi David,

Thanks for your answer.
It really helps me a lot.

-- 
Thanks
Wang
On Fri, Apr 15, 2016 at 2:15 AM, David Smith <dsmith@redhat.com> wrote:
> On 04/13/2016 07:17 PM, peter wang wrote:
>> Hello,
>>
>> I run the internal testsuite in CentOS 6.7 and got some FAILs in the result.
>> Then I got serveral questions:
>> 1. Is the testsuite designed for all the kernel version?
>
> Yes, it is supposed to be. If a feature is needed we're supposed to test
> that it exists before running the test (or marking the test as a 'KFAIL'
> - a known failure).
>
> However, that doesn't always happen.
>
>> 2. Is it bug which need to be fixed that leads to some FAILs in some
>> environment?
>
> The answer here is "it varies". Some of the failures you see are test
> case failures, some are actual failures.
>
> We'd be *happy* to get some help in fixing failures.
>
>> 3. In which system can I get no FAIL with the internal testsuite?
>
> There isn't any os/arch combination that will receive 0 failures. On
> x86_64 (probably our most tested architecture) and a semi-recent kernels
> (such as RHEL7's 3.10 or a more current Fedora release), you'll get in
> the neighborhood of approximately 100 unexpected failures. I've done a
> fair amount of work in the past several months getting the failures down
> to that number.
>
> Why isn't that number 0? Several reasons, one of the biggest being gcc
> debuginfo quality. Sometimes because of poor debuginfo, we can't find a
> function's parameters (for instance).
>
> Note that the number of unexpected failures can vary wildly per
> architecture.
>
>> Can anyone help me?
>
> I hope I've answered your questions. As I said earlier, we'd be happy to
> have help in debugging and fixing up the remaining testsuite failures.
>
> --
> David Smith
> dsmith@redhat.com
> Red Hat
> http://www.redhat.com
> 256.217.0141 (direct)
> 256.837.0057 (fax)


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