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bug#21410: [TEST-FAIL] 2 tests failed when running `make check' on Debia


From: Alex Vong
Subject: bug#21410: [TEST-FAIL] 2 tests failed when running `make check' on Debian
Date: Tue, 15 Sep 2015 19:24:07 +0800

Hi everyone,

Any idea on the latest test failure?

By the way, is the failure critical? Can I start doing packaging work for guix?

Cheers,
Alex

2015-09-09 18:02 GMT+08:00, Alex Vong <address@hidden>:
> Hi Dave,
>
> It appears that the patch doesn't quite work, now 20 tests failed
> instead of 2. The log files are attached as a tar ball. I have tried
> running the tests on the old source as well as on fresh new git clone.
> In any case, 20 tests failed. I wonder why this happens.
>
> Cheers,
> Alex
>
> 2015-09-08 3:42 GMT+08:00, Thompson, David <address@hidden>:
>> On Sun, Sep 6, 2015 at 9:47 PM, Alex Vong <address@hidden> wrote:
>>> Hi Dave,
>>>
>>> I have searched the internet according to the information you provided,
>>> I find this bug report <https://github.com/lxc/lxc/issues/250> provides
>>> useful information.
>>> I have written an example program after going through the clone(2) man
>>> page.
>>> It demonstrates the problem and is inlined below.
>>>
>>> First, compile the program as `a.out'.
>>>
>>> Consider shell session 1:
>>>
>>>     root# echo 0 > /proc/sys/kernel/unprivileged_userns_clone
>>>     user$ ./a.out
>>>     I am your parent
>>>     Start cloning...
>>>     Cannot clone!
>>>
>>> Consider shell session 2:
>>>
>>>     root# echo 1 > /proc/sys/kernel/unprivileged_userns_clone
>>>     user$ ./a.out
>>>     I am your parent
>>>     Start cloning...
>>>     Cloned!
>>>     I am your child
>>>
>>> Any idea what's happenning?
>>> I don't know Linux much, for instance I don't know what is container and
>>> namespace in Linux.
>>
>> It seems that the kernel you are using has disabled the use of
>> unprivileged user namespaces by default.  After doing that echo as
>> root, you should be able to run the tests successfully.  Could you
>> apply the attached patch and let me know if 'make check
>> TESTS=tests/syscalls.scm' and 'make check TESTS=tests/containers.scm'
>> pass in both when unprivileged user namespaces are disabled and when
>> they are enabled?
>>
>> Thank you!
>>
>> - Dave
>>
>





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