[dpdk-users] WARNING! Base virtual address hint not respected!

[Cliff Burdick]

Not sure how that is happening. 1GB hugepages are enabled on boot, and
that's the only one allocated:

$ ls /sys/kernel/mm/hugepages/
hugepages-1048576kB

$ mount
...
nodev on /mnt/huge type hugetlbfs (rw,relatime,pagesize=1024M)

Any idea where the 4K alignment is coming from?

On Thu, Nov 15, 2018 at 11:54 AM Kyle Larose <eomereadig at gmail.com> wrote:

> On Thu, Nov 15, 2018 at 2:30 PM Cliff Burdick <shaklee3 at gmail.com> wrote:
> >
> > Hi, I'm updating to 18.11 from 17.03, and I noticed there a several new
> > warnings printing on startup in my primary process:
> >
> ...
> > EAL: WARNING! Base virtual address hint (0x64002f000 != 0x680000000) not
> > respected!
> > EAL:    This may cause issues with mapping memory into secondary
> processes
> > EAL: WARNING! Base virtual address hint (0xe80030000 != 0xec0000000) not
> > respected!
> > EAL:    This may cause issues with mapping memory into secondary
> processes
> > EAL: WARNING! Base virtual address hint (0x16c0031000 != 0x1700000000)
> not
> > respected!
> ...
> >
> > It appears by searching the mailing list that this problem is not very
> > common since it's fairly new. Does anyone know what can cause this? I
> have
> > ASLR disabled.
>
> 4K pages vs huge-pages? It looks like the left-hand addresses are
> 4K-aligned, while the right-hand ones are not.
>