i.MX ProcessorsのトピックRe: How to apply for large memory in user layer

How to apply for large memory in user layer

半醒的狐狸 — Tue, 15 Oct 2019 07:21:45 GMT

How do I request more than 400M memory at the user layer？

I tried malloc and mmap, malloc failed to return, mmap application was successful, but the kernel crashed during initialization。

my board is MCIMX7SABRE

thanks！！

Re: How to apply for large memory in user layer

igorpadykov — Tue, 15 Oct 2019 08:59:05 GMT

Hi 益李

one can try "reserved-memory" parameter

imx7d.dtsi\dts\boot\arm\arch - linux-imx - i.MX Linux kernel

https://www.kernel.org/doc/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt

Best regards
igor
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Re: How to apply for large memory in user layer

半醒的狐狸 — Fri, 18 Oct 2019 01:04:02 GMT

it's usefull ，i malloc 512M memory successfully，thanks。