| To: | Bob Felderman <feldy@xxxxxxxx> |
|---|---|
| Subject: | Re: [Fwd: Re: possible bug x86 2.4.2 SMP in IP receive stack] |
| From: | Andi Kleen <ak@xxxxxx> |
| Date: | Fri, 9 Mar 2001 14:34:11 +0100 |
| Cc: | kuznet@xxxxxxxxxxxxx, Andi Kleen <ak@xxxxxx>, andrewm@xxxxxxxxxx, davem@xxxxxxxxxx, netdev@xxxxxxxxxxx, pp@xxxxxxxxxxxxxx |
| In-reply-to: | <Pine.SUN.4.21.0103081047110.5124-100000@xxxxxxxxxxxxxx>; from feldy@xxxxxxxx on Thu, Mar 08, 2001 at 07:56:43PM +0100 |
| References: | <200103081742.UAA25910@xxxxxxxxxxxxx> <Pine.SUN.4.21.0103081047110.5124-100000@xxxxxxxxxxxxxx> |
| Sender: | owner-netdev@xxxxxxxxxxx |
On Thu, Mar 08, 2001 at 07:56:43PM +0100, Bob Felderman wrote:
> I think the culprit here is the packet receive errors from
> UDP. These are socket overflows I think. I'm trying to
> track it down. When I used DaveM's zero-copy patches on
> a linux-2.4.0 kernel, most, if not all, of these
> packet receive errors went away.
So does it help when you increase the socket receive buffer of the receiver ?
(via /proc/sys/net/core/rmem_{default,max})
-Andi
>
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