Re: [syzbot] [mm?] BUG: Bad page map (7)

From: Dave Hansen
Date: Tue Sep 19 2023 - 12:11:55 EST


On 9/18/23 18:11, Yin Fengwei wrote:
>> I will find a test machine to measure the performance difference of these two
>> versions by using xfs + will-it-scale. Will keep you guys updated.
> I'd like to move this bug fixing forward. Based on the test result here:
> https://lore.kernel.org/linux-mm/124631ab-eb4c-6584-12d4-f3c91e69c873@xxxxxxxxx/
> There is very small performance delta between your version and Dave's.
>
> What do you think if we propose to merge Dave's version? Or do I need collect
> more data? Thanks.

I honestly don't feel that strongly about my version versus Matthew's.
I like mine, but I'll happily ack either approach.

The thing I care about the most is getting the bug fixed ... quickly. :)