Re: [PATCH] mm/migrate: Fix wrongly apply write bit after mkdirty on sparc64

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On 16.02.23 16:30, Peter Xu wrote:
> Nick Bowler reported another sparc64 breakage after the young/dirty
> persistent work for page migration (per "Link:" below).  That's after a
> similar report [2].

Thx for handling this.

> [...]
>
> Note: this is based on mm-unstable, because the breakage was since 6.1 and
> we're at a very late stage of 6.2 (-rc8), so I assume for this specific
> case we should target this at 6.3.
> 
> [1] https://lore.kernel.org/all/20221021160603.GA23307@xxxxxxxxxxxx/
> [2] https://lore.kernel.org/all/20221212130213.136267-1-david@xxxxxxxxxx/
> 
> Cc: regressions@xxxxxxxxxxxxx

Not that it matters much, but feel free to use this instead:

CC: regressions@xxxxxxxxxxxxxxx

Then things don't depend on me (in case I ever get help with my cat
herding job). And it also make it even more obvious that this patch
fixes a regression to anyone who handles it downstream.

> Fixes: 2e3468778dbe ("mm: remember young/dirty bit for page migrations")

That's a commit from 6.1, hence this should likely have:

Cc: stable@xxxxxxxxxxxxxxx # 6.1.y

[no, a fixes tag alone does not suffice, see docs]

> Link: https://lore.kernel.org/all/CADyTPExpEqaJiMGoV+Z6xVgL50ZoMJg49B10LcZ=8eg19u34BA@xxxxxxxxxxxxxx/
> Reported-by: Nick Bowler <nbowler@xxxxxxxxxx>
> [...]

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.




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