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SubjectRe: [PATCH v13] mm: report per-page metadata information
Pasha Tatashin wrote:
[..]
> Thank you for the heads up. Can you please attach a full config file,
> also was anyone able to reproduce this problem in qemu with emulated
> nvdimm?

Yes, I can reproduce the crash just by trying to reconfigure the mode of
a pmem namespace:

# ndctl create-namespace -m raw -f -e namespace0.0

...where namespace0.0 results from:

memmap=4G!4G

...passed on the kernel command line.

Kernel config here:

https://gist.github.com/djbw/143705077103d43a735c179395d4f69a

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