Re: [PATCH v7 4/6] selftests/resctrl: Cleanup properly when an error occurs in CAT test

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On Mon, 13 Feb 2023, Reinette Chatre wrote:

> 
> 
> On 2/13/2023 2:00 AM, Ilpo Järvinen wrote:
> > On Mon, 13 Feb 2023, Shaopeng Tan wrote:
> > 
> >> After creating a child process with fork() in CAT test, if an error
> >> occurs when parent process runs cat_val() or check_results(), the child
> > 
> > I'd replace the rest of the paragraph with this:
> > 
> > "returns early. The parent will wait pipe message from child which will 
> > never be sent by the child and the parent cannot proceeed to unmount 
> > resctrlfs."
> 
> Note that the description is about an error within the parent process.
> In the case snipped above it is the parent that exits early, not the child.

Ah, that a good point. Somehow I was too fixed into thinking the child 
exiting because it's what it's come across myself.

-- 
 i.

> This first paragraph describes two scenarios, (a) error in parent, and (b)
> error in child. I think it is good information to keep descriptions of
> both scenarios.
> 
> The proposed addition could be used to expand the description of the scenario
> when an error occurs in the child. In this case please consider changing "wait
> pipe message from child" to "wait for the pipe message from the child", and
> "proceeed" to "proceed".
> 
> Reinette
> 

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