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Date:	Sat, 26 Jan 2008 11:14:37 -0800
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	"Alon Bar-Lev" <alon.barlev@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: iproute2 (addr flush) infinite loop when unprivileged users

On Sat, 26 Jan 2008 10:58:58 +0200
"Alon Bar-Lev" <alon.barlev@...il.com> wrote:

> On 1/26/08, Alon Bar-Lev <alon.barlev@...il.com> wrote:
> > On 1/26/08, Stephen Hemminger <shemminger@...ux-foundation.org> wrote:
> > > The issue is that iproute is just blindly sending the deletes and
> > > not asking for acknowledgment status. Here is a trivial patch to iproute
> > > to fix that, but the problem is that it means it will slow down bulk removal.
> > >
> > > Maybe it should just check the first, or last delete to see if there are
> > > errors?
> > >
> > > diff --git a/ip/iproute.c b/ip/iproute.c
> > > index 7a885b0..b2ae879 100644
> > > --- a/ip/iproute.c
> > > +++ b/ip/iproute.c
> >
> > This should also be applied into ip/ipaddress.c, ip/ipneigh.c
> > Or even make one common function?
> >
> > I don't quite understand how "fast" is good if not complete... But
> > anyway... I will be happy to see this fix in next version... Maybe add
> > --fast argument? :)
> >
> > Alon.
> >
> 
> Pulled your latest git head. See some updates but not this one...
> Just thought to report the following [new] build error:
> 
> 
> gcc -Wl,-export-dynamic  ip.o ipaddress.o iproute.o iprule.o rtm_map.o
> iptunnel.o ip6tunnel.o tunnel.o ipneigh.o ipntable.o iplink.o
> ipmaddr.o ipmonitor.o ipmroute.o ipprefix.o ipxfrm.o xfrm_state.o
> xfrm_policy.o xfrm_monitor.o iplink_vlan.o link_veth.o
> ../lib/libnetlink.a ../lib/libutil.a  -lresolv -L../lib -lnetlink
> -lutil -ldl -o ip
> iptunnel.o: In function `parse_args':
> iptunnel.c:(.text+0x2f6): undefined reference to `__constant_htons'
> iptunnel.c:(.text+0x434): undefined reference to `__constant_htons'
> iptunnel.c:(.text+0x4c1): undefined reference to `__constant_htons'
> iptunnel.c:(.text+0x4da): undefined reference to `__constant_htons'
> iptunnel.c:(.text+0x51c): undefined reference to `__constant_htons'
> iptunnel.o:iptunnel.c:(.text+0x535): more undefined references to
> `__constant_htons' follow
> collect2: ld returned 1 exit status
> make[1]: *** [ip] Error 1

What system are you building on.
This is defined in linux/byteorder.h

-- 
Stephen Hemminger <stephen.hemminger@...tta.com>
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