Re: A "domain invalid" cgroup *can* sometimes have member tasks

Hi Tehjun, On 21 February 2018 at 00:01, Tejun Heo wrote: > On Tue, Feb 20, 2018 at 11:35:47AM -0800, Tejun Heo wrote: >> Hmm... nr_populated_domain_children check should have caught that >> condition and rejected it. Will look into what's going on. > > Ah, okay, I was

Re: A "domain invalid" cgroup *can* sometimes have member tasks

Hi Tehjun, On 21 February 2018 at 00:01, Tejun Heo wrote: > On Tue, Feb 20, 2018 at 11:35:47AM -0800, Tejun Heo wrote: >> Hmm... nr_populated_domain_children check should have caught that >> condition and rejected it. Will look into what's going on. > > Ah, okay, I was special-casing the first

Re: A "domain invalid" cgroup *can* sometimes have member tasks

On Tue, Feb 20, 2018 at 11:35:47AM -0800, Tejun Heo wrote: > Hmm... nr_populated_domain_children check should have caught that > condition and rejected it. Will look into what's going on. Ah, okay, I was special-casing the first level children case too early. If you nest the test case by one

Re: A "domain invalid" cgroup *can* sometimes have member tasks

On Tue, Feb 20, 2018 at 11:35:47AM -0800, Tejun Heo wrote: > Hmm... nr_populated_domain_children check should have caught that > condition and rejected it. Will look into what's going on. Ah, okay, I was special-casing the first level children case too early. If you nest the test case by one

Re: A "domain invalid" cgroup *can* sometimes have member tasks

On Tue, Feb 20, 2018 at 08:26:59PM +0100, Michael Kerrisk (man-pages) wrote: > Hello Tejun > > According to Documentation/cgroup-v2.txt, a "domain invalid" cgroup > can't have member tasks. And indeed this is generally not permitted. > > However, someone recently showed me a scenario where a

Re: A "domain invalid" cgroup *can* sometimes have member tasks

On Tue, Feb 20, 2018 at 08:26:59PM +0100, Michael Kerrisk (man-pages) wrote: > Hello Tejun > > According to Documentation/cgroup-v2.txt, a "domain invalid" cgroup > can't have member tasks. And indeed this is generally not permitted. > > However, someone recently showed me a scenario where a

A "domain invalid" cgroup *can* sometimes have member tasks

Hello Tejun According to Documentation/cgroup-v2.txt, a "domain invalid" cgroup can't have member tasks. And indeed this is generally not permitted. However, someone recently showed me a scenario where a "domain invalid" cgroup can have member processes. See the following example: # mkdir -p

A "domain invalid" cgroup *can* sometimes have member tasks

Hello Tejun According to Documentation/cgroup-v2.txt, a "domain invalid" cgroup can't have member tasks. And indeed this is generally not permitted. However, someone recently showed me a scenario where a "domain invalid" cgroup can have member processes. See the following example: # mkdir -p