* [dpdk-dev] DPDK & ASLR
@ 2016-10-25 22:18 Samir Shah
2016-10-26 4:20 ` Jon DeVree
0 siblings, 1 reply; 3+ messages in thread
From: Samir Shah @ 2016-10-25 22:18 UTC (permalink / raw)
To: dev
We know that it is recommended that ASLR be turned off so that the mappings
across primary and secondary remain the same.
Does ASLR need to be turned off system-wide, or DPDK-processes wide? Could
we use setarch/personality to disable ASLR for just the DPDK process and
leave it enabled for the rest of the system? Any experience to say if that
would work or not?
- Samir
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] DPDK & ASLR
2016-10-25 22:18 [dpdk-dev] DPDK & ASLR Samir Shah
@ 2016-10-26 4:20 ` Jon DeVree
2016-10-26 9:13 ` Mcnamara, John
0 siblings, 1 reply; 3+ messages in thread
From: Jon DeVree @ 2016-10-26 4:20 UTC (permalink / raw)
To: dev
On Tue, Oct 25, 2016 at 15:18:03 -0700, Samir Shah wrote:
> Does ASLR need to be turned off system-wide, or DPDK-processes wide? Could
> we use setarch/personality to disable ASLR for just the DPDK process and
> leave it enabled for the rest of the system? Any experience to say if that
> would work or not?
>
I'm using setarch/personality to disable it only in the processes using
dpdk without any trouble.
--
Jon
Doge Wrangler
X(7): A program for managing terminal windows. See also screen(1) and tmux(1).
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] DPDK & ASLR
2016-10-26 4:20 ` Jon DeVree
@ 2016-10-26 9:13 ` Mcnamara, John
0 siblings, 0 replies; 3+ messages in thread
From: Mcnamara, John @ 2016-10-26 9:13 UTC (permalink / raw)
To: Jon DeVree, dev
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Jon DeVree
> Sent: Wednesday, October 26, 2016 5:20 AM
> To: dev@dpdk.org
> Subject: Re: [dpdk-dev] DPDK & ASLR
>
> On Tue, Oct 25, 2016 at 15:18:03 -0700, Samir Shah wrote:
> > Does ASLR need to be turned off system-wide, or DPDK-processes wide?
> > Could we use setarch/personality to disable ASLR for just the DPDK
> > process and leave it enabled for the rest of the system? Any
> > experience to say if that would work or not?
> >
>
> I'm using setarch/personality to disable it only in the processes using
> dpdk without any trouble.
Hi Jon,
That is interesting. Do you have some more details on how to do this.
Also, It might be worth adding this to the DPDK documentation:
http://dpdk.org/doc/guides/prog_guide/multi_proc_support.html#multi-process-limitations
John
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