Re: [PATCH] mm/util.c: Add error logs for commitment overflow

[pintu]

On 2020-10-02 17:41, Matthew Wilcox wrote:

> I don't think the __func__ is particularly useful information.  I would
> also expect the name of the process to be more interesting than the 
> PID.
> And why is the ppid useful?

Dear Matthew, First, thank you so much for your review and comments.
I totally agree with you.
Yes, initially I included process-name but later removed it to shrink 
some lines.
I thought just pid should be enough to figure out the culprit process 
from dumps.
Okay, I agree __func__ can also be removed.
ppid, I thought might be useful, so I included it. Okay I will remove 
that too.

> Wouldn't this message be more useful?
>
> fork: Would overcommit system (pid:162 name:./consume-and-fork.out)

Okay, yes I think this should be sufficient.
But I think printing pages also should be good to indicate the users to 
lack
information about this commitment.

> ie put it in dup_mmap() and use current->comm

Sorry, this part about dup_mmap(), I could not understand.


Thanks,
Pintu