Re: [PATCH v2] x86/mm: Drop 4MB restriction on minimal NUMA node memory size

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* Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> wrote:

> > While I agree with dropping the limitation, and I agree that 
> > 9391a3f9c7f1 should have provided more of a justification, I believe a 
> > core MM fix is in order as well, for it to not crash. [ If it's fixed 
> > upstream already, please reference the relevant commit ID. ]
> 
> Agree. I posted a fixed patchset[1] before, maybe we can reconsider it. 
> :)
> 
> [1]. https://lore.kernel.org/lkml/20230215152412.13368-1-zhengqi.arch@xxxxxxxxxxxxx/
> 
> For memoryless node, this patchset skip it and fallback to other nodes
> when build its zonelists.

Mind resubmitting that to the MM folks, with the NULL dereference crash 
mentioned prominently? Feel free to Cc: me.

Fixing hypothetical robustness problems is good, fixing specific crashes is 
better. :-)

Thanks,

	Ingo




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