Re: [mpls-linux-devel] IA64, unaligned access in mpls command

[James R. L. <jl...@mi...>]

Hello,

As far as I know, you are the first person to try mpls-linux on a 64 bit
machine.  I do not have a 64 bit environment to test on, without access
to a 64 bit environment, all I can do it suggest things to try.  I will look
to see how other 64 bit counters are handled in iproute2 and see if I can
come up with a suggested change for you.

On Mon, Jun 04, 2007 at 10:42:00AM +0200, David Marchand wrote:
> Hello list,
>=20
> I am currently testing mpls-linux-1.955 on a Bull NovaScale 3045 server
> with one Itanium2 processor running Redhat AS5 (ia64).
> I have recompiled kernel, iptables and iproute2 using source rpms from
> redhat and the mpls-linux patches.
>=20
> The box is running fine with the mpls module inserted but I have a
> message I am interpreting as a warning when running commands like :
> # mpls nhlfe add key 0 instructions nexthop eth0:2 ipv4 192.168.0.1
> NHLFE entry key 0x0000002d mtu 0 propagate_ttl
> *mpls(30410): unaligned access to 0x60000fffff476e44, ip=3D0x400000000000=
35c1*
>          (0 bytes, 0 pkts)
>=20
> I have identified this ip to print_mpls_stats function in iproute2
> mpls.c file :
> void print_mpls_stats(FILE *fp, struct gnet_stats_basic *st)
> {
>        fprintf(fp, " (%llu bytes, %u pkts)",
>                (unsigned long long)st->bytes, st->packets);
> }
>=20
> I think this format and cast are not really appropriate.
> I tried using PRIu64 as format and removing the (unsigned long long)
> cast. Compilation is ok but at runtime, the "unaligned access" message
> won't go away.
> So the real problem is something else.
>=20
> Is there someone who already ran this patch on ia64 or someone who can
> help me on this problem ?
>=20
> Thank you.
>=20
>=20
> Regards,
>=20
> --=20
> David Marchand
>=20
> Bull, Architect of an Open World TM
> e-mail : dav...@bu...
> phone : +33 (0)1 30 80 36 79
> http://www.bull.com/telco/
>=20
>=20
>=20
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--=20
James R. Leu
jl...@mi...