[LTP] [PATCH] cgroup_regression_test: Use unique names for hierarchies in each test

[Andrea Cervesato]

On 7/10/25 11:00 AM, Cyril Hrubis wrote:
> Hi!
>>> I forgot to mention that I also tried to use
>>> tst_umount() helper routine, but that did not help as umount does not
>>> really report any failures here.
>> The solution doesn't really convince me. If it's true that a util-linux
>> upgrade to v2.41 is causing this issue, we should probably research why
>> this is happening in there and (eventually) fix it. Or, if it's not a
>> library bug, we should fix tst_umount() in order to recognize when a
>> cgroups folder hasn't been fully unmounted.
>>
>> @Cyril WDYT ?
> This indeed looks like a workaround for a bug either in the test or in
> the system.
>
Perhaps, by placing sync before every new test which is going to mount a 
new cgroup folder we fix the issue as well.
I'm wondering if we should dig into it a big deeper...

- Andrea