netdev - Re: [Bugme-new] [Bug 8876] New: Not all IPs are shown by "ip addr show"

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Message-Id: <20070810094351.cb548415.akpm@linux-foundation.org>
Date:	Fri, 10 Aug 2007 09:43:51 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	netdev@...r.kernel.org
Cc:	gentuu@...il.com,
	"bugme-daemon@...nel-bugs.osdl.org" 
	<bugme-daemon@...zilla.kernel.org>
Subject: Re: [Bugme-new] [Bug 8876] New: Not all IPs are shown by
 "ip addr show"

On Fri, 10 Aug 2007 05:58:25 -0700 (PDT) bugme-daemon@...zilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=8876
> 
>            Summary: Not all IPs are shown by "ip addr show"
>            Product: Networking
>            Version: 2.5
>      KernelVersion: >=2.6.22 (2.6.23.x too)
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: high
>           Priority: P1
>          Component: IPV4
>         AssignedTo: shemminger@...l.org
>         ReportedBy: gentuu@...il.com
> 
> 
> Most recent kernel where this bug did not occur: 2.6.21.x

a regression.

> Distribution: no matter
> Hardware Environment: generic i686
> Software Environment: GNU
> Problem Description:
> Not all ips are shown by "ip addr show" command when IPs number assigned to an
> interface is more than 60-80 (in fact it depends on broadcast/label etc
> presence on each address).
> 
> Steps to reproduce:
> It's terribly simple to reproduce:
> 
> # for i in $(seq 1 100); do ip ad add 10.0.$i.1/24 dev eth10 ; done
> # ip addr show
> 
> this will _not_ show all IPs.
> Looks like the problem is in netlink/ipv4 message processing.
> 
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