From: Andrew Morton <akpm@linux-foundation.org>
To: a.reversat@gmail.com
Cc: bugme-daemon@bugzilla.kernel.org, netdev@vger.kernel.org,
Patrick McHardy <kaber@trash.net>
Subject: Re: [Bugme-new] [Bug 37172] New: Enabling 802.1q vlan causes some packets to be received with a vlan id of 64
Date: Mon, 13 Jun 2011 16:43:55 -0700 [thread overview]
Message-ID: <20110613164355.c4f7b7b2.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-37172-10286@https.bugzilla.kernel.org/>
(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).
On Fri, 10 Jun 2011 19:20:58 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=37172
>
> Summary: Enabling 802.1q vlan causes some packets to be
> received with a vlan id of 64
> Product: Networking
> Version: 2.5
> Kernel Version: 2.6.39
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Other
> AssignedTo: acme@ghostprotocols.net
> ReportedBy: a.reversat@gmail.com
> Regression: Yes
>From which kernel version did we regress? Was 2.6.38 OK?
Thanks.
>
> Created an attachment (id=61502)
> --> (https://bugzilla.kernel.org/attachment.cgi?id=61502)
> Packet capture of problem
>
> I added a vlan to my main network card by doing :
>
> vconfig add eth0 6
>
> Then I got huge packet loss when pinging e.g google (around 70% packet loss).
>
> After checking a packet capture it seems that some packets come in with a vlan
> tag even though they shouldn't. In my capture I see them with a vlan id of 64
> where they shouldn't even be 802.1q tagged.
>
> Kernel version is 2.6.39 and I am using the forcedeth driver so I don't know if
> it is related to the network stack or the forcedeth driver.
>
> Attached is the relevant capture. Note how packet with seq 2 for instance is
> tagged and packet with seq 5 isn't.
>
> I'll test this with the latest 3.0 rc and update the bug report if the problem
> is fixed in there.
>
next parent reply other threads:[~2011-06-13 23:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-37172-10286@https.bugzilla.kernel.org/>
2011-06-13 23:43 ` Andrew Morton [this message]
2011-06-14 13:31 ` [Bugme-new] [Bug 37172] New: Enabling 802.1q vlan causes some packets to be received with a vlan id of 64 Antoine Reversat
2011-06-15 16:13 ` Antoine Reversat
2011-06-15 16:57 ` Antoine Reversat
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