Re: [PATCH] x86/mm/tlb: ignore f->new_tlb_gen when zero

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On Jul 8, 2022, at 10:01 AM, Dave Hansen <dave.hansen@xxxxxxxxx> wrote:

> ⚠ External Email
> 
> On 7/8/22 09:54, Nadav Amit wrote:
>> Since the bug was not during MADV_DONTNEED there is no reason for the
>> results to be any different.
>> 
>> Famous last words?
> 
> Considering that your patch broke the kernel a way that surprised us
> all, I think caution is warranted.  Re-running a microbenchmark that
> takes five minutes and stresses things a bit is the least you can do, I
> think.

I will send it later today. I was just pointing that the failing code-path
is different than the one I measured.





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