[Bug 204789] New: Boot failure with more than 256G of memory

[Cameron Berkenpas]

Running against the kernel I built against 0034d395f89d and the problem 
is still there.

However, running against the kernel I built against the previous commit, 
a35a3c6f6065, and the system boots.

This being due to 0034d395f89d confirmed.

Thanks!

On 9/13/19 9:13 AM, Aneesh Kumar K.V wrote:
> On 9/13/19 8:35 PM, Cameron Berkenpas wrote:
>> Yep, the box comes up now, but with 256G memory as expected.
>>
>> I'll get back to you on when I'll be able to bisect.
>>
>> Thanks!
>
> I am sure this is due to
>
> commit: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions 
> in the same 0xc range"),
>
> We reduced the linear map range for 4K page size to 16TB there.
>
>
> -aneesh