From: Jiri Pirko <jpirko@redhat.com>
To: Mike Auty <mike.auty@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
bugme-daemon@bugzilla.kernel.org, netdev@vger.kernel.org
Subject: Re: [Bugme-new] [Bug 41152] New: kernel 3.0 and above fails to handle vlan id 0 (802.1p) packets properly without hardware acceleration
Date: Thu, 18 Aug 2011 18:37:03 +0200 [thread overview]
Message-ID: <20110818163702.GA1911@minipsycho> (raw)
In-Reply-To: <4E4C4549.6020802@gmail.com>
Thu, Aug 18, 2011 at 12:48:41AM CEST, mike.auty@gmail.com wrote:
>On 17/08/11 11:59, Jiri Pirko wrote:
>>
>> I just obtained very similar card (8086:422b). Going to look at it right
>> away.
>>
>> One more thing. What do you use to generate vlan0 tagged packets? I'm
>> using pktgen with "vlan_id 0". Would you please try that it behaves the
>> same for you?
>>
>
>Sorry, I haven't been using pktgen. I've got an actual device (a
>Samsung android phone) which seems to tag all normal outbound packets
>with this type of vlan tag. I only discovered a month ago that I needed
>the 8021q module to be able to talk to it, and then suddenly it stopped
>working once I moved to the 3.0 kernel.
>
>I might not have made it clear, but the packets are received (in so much
>as the packet is definitely sent, and it's seen by tools such as
>wireshark), but no reply is ever sent. I've attached packet logs from
>the 3.0.1 kernel and the 2.6.39.3 kernel. Oddly the tagging only seems
>to be used on the first SYN,ACK packet, but again I don't know enough
>about the pipeline or what the Samsung kernel's doing to cause that.
>
>I hope that's of some help? I may be able to get systemtap support
>rolled into my kernel tomorrow at some point, but if not then it will
>have to wait until the weekend. I don't know if that will provide
>useful information for debugging this, but I am happy to run whatever
>tests I can to figure this out...
>
>Mike 5:)
Patch posted:
http://patchwork.ozlabs.org/patch/110535/
sorry I forgot to cc you Mike. Thanks a lot for report!
Jirka
next prev parent reply other threads:[~2011-08-18 16:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-41152-10286@https.bugzilla.kernel.org/>
2011-08-16 22:09 ` [Bugme-new] [Bug 41152] New: kernel 3.0 and above fails to handle vlan id 0 (802.1p) packets properly without hardware acceleration Andrew Morton
2011-08-17 5:37 ` Jiri Pirko
2011-08-17 6:36 ` Mike Auty
2011-08-17 10:59 ` Jiri Pirko
2011-08-17 17:50 ` Jiri Pirko
2011-08-17 22:48 ` Mike Auty
2011-08-18 16:37 ` Jiri Pirko [this message]
2011-08-18 19:39 ` Mike Auty
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