在 2024/8/10 9:29, Kasireddy, Vivek 写道:
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Hi Huan,
When PAGE_SIZE 4096, MAX_PAGE_ORDER 10, 64bit machine,
page_alloc only
Hi Huan,
>
> When PAGE_SIZE 4096, MAX_PAGE_ORDER 10, 64bit machine,
> page_alloc only support 4MB.
> If above this, trigger this warn and return NULL.
>
> udmabuf can change size limit, if change it to 3072(3GB), and then alloc
> 3GB udmabuf, will fail create.
>
> [ 4080.876581] [ c
When PAGE_SIZE 4096, MAX_PAGE_ORDER 10, 64bit machine,
page_alloc only support 4MB.
If above this, trigger this warn and return NULL.
udmabuf can change size limit, if change it to 3072(3GB), and then alloc
3GB udmabuf, will fail create.
[ 4080.876581] [ cut here ]
[ 4080.
