根据前面的系列文章，我们知道了buddy system是基于页框分配器，kmalloc是基于slab分配器，而且这些分配的地址都是物理内存连续的。但是随着碎片化的积累，连续物理内存的分配就会变得困难，对于那些非DMA访问，不一定非要连续物理内存的话完全可以像malloc ...

vmalloc的指标含义为： VMallocTotal — The total amount of memory, in kilobytes, of total allocated virtual address space. VMallocUsed — The total amount of memory, in kilobytes, of used virtual address space.

It runs the target function on a vmalloc()’ed copy of all input and output data. This alone prevents some out-of-bounds accesses thanks to guard pages. The SandBox Mode API allows running each ...