netdev - Re: Scaling Max IP address limitation

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Message-ID: <467FFAAA.8010103@rossove.com>
Date:	Mon, 25 Jun 2007 12:26:02 -0500
From:	David Jones <djones@...sove.com>
To:	Robert Iakobashvili <coroberti@...il.com>
CC:	Jan Engelhardt <jengelh@...putergmbh.de>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Scaling Max IP address limitation

Ok I have tried it on a Pentium-M ( 32 Bit ,) with 512 MB RAM and  Core 
2 Duo with 1Gig RAM  ( running SMP kernel , 2 CPUS) with same results. 
Cant go more than ~4K addresses. I have tried them with vanilla and 
custom kernels all 2.6.19+ versions.  Results are same on both systems , 
so thats the reason I am thinking that there is some limit in kernel 
source tree which I cant seem to find . Really appreciate your help in 
this regard.
Thanks,
-d

Robert Iakobashvili wrote:
> On 6/25/07, Jan Engelhardt <jengelh@...putergmbh.de> wrote:
>>
>> On Jun 25 2007 12:41, Robert Iakobashvili wrote:
>> >> > I am getting after initial successes some errors:
>> >> > "rtnl_talk(): RTNETLINK answers: Cannot allocate memory"
>> >> > and
>> >> > #ip addr | wc-l is 8194.
>> >>
>> >> I'd be surprised if it was 4096 on x86 and 8192 on x86_64...
>> >
>> > Missed to mention: the CPU is Pentium-4.
>>
>> That's like saying you've got a SPARC. Or a MIPS. Or a PPC.
>> (I can't infer from your answer whether that is running 32 or 64-bit
>> kernel, because there are P4s with and without 64-bit extensions.)
>
> 32/32
>
>>         Jan
>> -- 
>>
>
>

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