From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: Fw: [Bugme-new] [Bug 6495] New: Vlan MTU Fragmentation Date: Fri, 5 May 2006 19:39:03 -0700 Message-ID: <20060505193903.249feaf8.akpm@osdl.org> References: <20060504235628.33041b55.akpm@osdl.org> <445B75D2.6080702@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, bugme-daemon@bugzilla.kernel.org, slavon@bigtelecom.ru Return-path: Received: from smtp.osdl.org ([65.172.181.4]:6040 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1751811AbWEFCjT (ORCPT ); Fri, 5 May 2006 22:39:19 -0400 To: Ben Greear In-Reply-To: <445B75D2.6080702@candelatech.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Fri, 05 May 2006 08:57:06 -0700 Ben Greear wrote: > Andrew Morton wrote: > > > > Begin forwarded message: > > > > Date: Thu, 4 May 2006 23:15:56 -0700 > > From: bugme-daemon@bugzilla.kernel.org > > To: bugme-new@lists.osdl.org > > Subject: [Bugme-new] [Bug 6495] New: Vlan MTU Fragmentation > > > > > > http://bugzilla.kernel.org/show_bug.cgi?id=6495 > > > > Summary: Vlan MTU Fragmentation > > Kernel Version: 2.6.16.12 > > Status: NEW > > Severity: normal > > Owner: shemminger@osdl.org > > Submitter: slavon@bigtelecom.ru > > > > > > Steps to reproduce: > > > > ifconfing eth0 mtu 1500 > > ifconfing eth0.100 mtu 1500 > > > > ping www.ru -s 2000 > > -- BAD -- > > > > ---------------- > > > > ifconfing eth0 mtu 1500 > > ifconfing eth0.100 mtu 1496 > > > > ping www.ru -s 2000 > > --NORMAL-- > > This is almost definately a bug in the ethernet driver. The driver needs > to be modified so that it can send/receive pkts that are MTU + 4 bytes for the > VLAN header. > > We need to know what NIC/driver this user is using... > > Ben > Sorry, I should have added Badalian to Cc:. He's using 3c905C (3c59x.c, allegedly maintained by myself). (Badalian, please use emailed reply-to-all rather than the bugzilla interface for the remainder of this discussion, thanks).