Re: [patch v2 -mm] mm, oom: prefer thread group leaders for displaypurposes

[David Rientjes]

On Thu, 16 Jan 2014, Michal Hocko wrote:

> > When two threads have the same badness score, it's preferable to kill the 
> > thread group leader so that the actual process name is printed to the 
> > kernel log rather than the thread group name which may be shared amongst 
> > several processes.
> 
> I am not sure I understand this. Is this about ->comm? If yes then why
> couldn't the group leader do PR_SET_NAME?
> 

Both comm and pid, we only display thread group leaders in the tasklist 
dump of eligible processes, we want the killed message to specify from 
which process.

You're suggesting a thread group leader do PR_SET_NAME of all its threads 
for readable oom killer output?  Lol.
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