Re: /proc/self/mem

[Alexander Viro]

On Thu, 2 Dec 1999, Matan Ziv-Av wrote:

> 4.  svgalib allocates a virtual frame buffer (at VBF), and copies the
>     physical one to it.
> 
> 5.  svgalib calls mmap(GM,0x10000,,,proc_self_mem_fd,VBF), so that
>     writes at 0x4321xxxx go to the virtual frame buffer, and not to the
>     physical one.
> 
> Now, step 5 is broken. Is the same result (that of the mmap in
> step 5) achievable by other means?

Yes. Use anonymous mmap on the step 4 and mremap on step 5.