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SubjectRe: 4.14 backport request for dbdda842fe96f: "printk: Add console owner and waiter logic to load balance console writes"
On (12/12/18 14:36), Petr Mladek wrote:
> > OK, really didn't know that! I wasn't Cc-ed on that AUTOSEL email,
> > and I wasn't Cc-ed on this whole discussion and found it purely
> > accidentally while browsing linux-mm list.
>
> I am sorry that I did not CC you. There were so many people in CC.
> I expected that all people mentioned in the related commit message
> were included by default.

No worries! I'm not blaming anyone.

> > So if you are willing to backport this set to -stable, then I wouldn't
> > mind, probably would be more correct if we don't advertise this as a
> > "panic() deadlock fix"
>
> This should not be a problem. I guess that stable does not modify
> the original commit messages unless there is a change.

Agreed.

> > In the meantime, I can add my Acked-by to this backport if it helps.
>
> I am fine with back-porting the patches now. They have got much more
> testing in the meantime and nobody reported any regression. They
> seems to help in more situations than we expected. Finally, there is
> someone requesting the backport who spent non-trivial time
> on tracking the problem and testing.

Great!


Sasha, here is
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
from me.

And expect another backport request in 1 or 2 weeks - the patch
which eliminates the existing "panic CPU != uart_port lock owner CPU"
limitation.

-ss

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