Re: [x86, vdso] BUG: unable to handle kernel paging request at d34bd000

From: H. Peter Anvin
Date: Mon Mar 10 2014 - 13:49:51 EST


On 03/10/2014 10:46 AM, Andy Lutomirski wrote:
>
> It might be nice in general for there to be a /dev/vdso and for the
> vdso to literally be a mapping of that device node. I bet that CRIU
> would appreciate this. (The mmap flags would be a little odd, since
> different pages have different protections.)
>

Actually, it presumably ought to be handled like any other (readonly)
ELF file: that is, let the mapper handle the permissions.

-hpa

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