From: Steven Haigh <netwiz@crc•id.au>
To: Sander Eikelenboom <linux@eikelenboom•it>,
Zoltan Kiss <zoltan.kiss@citrix•com>
Cc: Ian Campbell <Ian.Campbell@citrix•com>,
Eric Dumazet <eric.dumazet@gmail•com>,
netdev@vger•kernel.org, xen-devel@lists•xen.org,
"David S. Miller" <davem@davemloft•net>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle•com>
Subject: Re: [3.15-rc3] Bisected: xen-netback mangles packets between two guests on a bridge since merge of "TX grant mapping with SKBTX_DEV_ZEROCOPY instead of copy" series.
Date: Wed, 07 May 2014 04:07:24 +1000 [thread overview]
Message-ID: <536924DC.9080606@crc.id.au> (raw)
In-Reply-To: <437888929.20140506193723@eikelenboom.it>
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On 07/05/14 03:37, Sander Eikelenboom wrote:
>
> Tuesday, May 6, 2014, 7:13:44 PM, you wrote:
>
>> On 06/05/14 18:07, Steven Haigh wrote:
>>> On a related note, I'm seeing this on an Arch Linux DomU and kernel
>>> 3.14.2. Its running aria2c bit torrent client.
>>>
>>> The Dom0 is EL6 with Xen 4.2.4 / 3.14.2 kernel.
>>>
>>> I also lodged this on the Arch bug tracker:
>>> https://bugs.archlinux.org/task/40244
>>>
>>> In a nutshell, I see:
>>> [ 7432.398096] xen_netfront: xennet: skb rides the rocket: 19 slots
>>> [ 7434.270870] xen_netfront: xennet: skb rides the rocket: 19 slots
>>> [ 7434.782199] xen_netfront: xennet: skb rides the rocket: 19 slots
>>> [ 7435.184794] xen_netfront: xennet: skb rides the rocket: 19 slots
>>> [ 7437.530677] xen_netfront: xennet: skb rides the rocket: 19 slots
>>> [ 7437.973905] xen_netfront: xennet: skb rides the rocket: 19 slots
>>> [ 7438.383947] xen_netfront: xennet: skb rides the rocket: 19 slots
>
>> Can you also see packet corruption? You can find a testfile generator in
>> Sander's mail, downloading from an Apache server with wget seems to be OK.
>
> The corruption shouldn't be there since he is running 3.14.2 which is fine.
>
> And note that the corruption with 3.15 only seems to occur in traffic between
> guests and not between dom0 and guest. The bit torrent traffic is probably
> inet <-> dom0 <-> guest, so shouldn't be affected, even with 3.15.
Well, I'm trying to get a test together - although I don't have webdav
anywhere... I was going to try it via FTP, however I'm hitting another
MMU bug in Xen:
https://bugs.archlinux.org/task/38596
This references:
https://lkml.org/lkml/2014/1/23/596
It says that should be fixed in 3.15-rc3 (if I understand properly) -
but I'm also hitting that on 3.14.2. Did these changes get ported back
to the 3.14 tree?
(also adding in Konrad vs the vsftp issue in Xen PV DomUs).
--
Steven Haigh
Email: netwiz@crc•id.au
Web: http://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897
Fax: (03) 8338 0299
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next prev parent reply other threads:[~2014-05-06 18:06 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-30 10:45 [3.15-rc3] Bisected: xen-netback mangles packets between two guests on a bridge since merge of "TX grant mapping with SKBTX_DEV_ZEROCOPY instead of copy" series Sander Eikelenboom
2014-04-30 15:24 ` Eric Dumazet
2014-04-30 20:40 ` Zoltan Kiss
2014-04-30 20:53 ` Zoltan Kiss
2014-04-30 22:25 ` Sander Eikelenboom
2014-05-01 13:37 ` Zoltan Kiss
2014-05-01 13:59 ` Sander Eikelenboom
2014-05-01 15:46 ` Zoltan Kiss
2014-05-01 17:39 ` Sander Eikelenboom
2014-05-01 17:46 ` Eric Dumazet
2014-05-01 19:39 ` [Xen-devel] " Sander Eikelenboom
2014-05-02 14:00 ` Zoltan Kiss
2014-05-02 14:06 ` Sander Eikelenboom
2014-05-02 14:47 ` Zoltan Kiss
2014-05-02 15:21 ` Eric Dumazet
2014-05-02 15:26 ` Zoltan Kiss
2014-05-02 16:28 ` Sander Eikelenboom
2014-05-02 16:45 ` Zoltan Kiss
2014-05-05 10:19 ` Sander Eikelenboom
2014-05-06 17:07 ` Steven Haigh
2014-05-06 17:13 ` Zoltan Kiss
2014-05-06 17:37 ` Sander Eikelenboom
2014-05-06 18:07 ` Steven Haigh [this message]
2014-05-07 8:16 ` [Xen-devel] " David Vrabel
2014-05-16 2:13 ` Steven Haigh
2014-05-06 17:08 ` [Xen-devel] " Zoltan Kiss
2014-05-06 17:10 ` Zoltan Kiss
2014-05-06 17:33 ` Sander Eikelenboom
2014-05-01 13:49 ` Zoltan Kiss
2014-05-01 14:05 ` Sander Eikelenboom
2014-05-01 15:16 ` Zoltan Kiss
2014-05-01 15:40 ` Sander Eikelenboom
2014-05-02 15:35 ` Eric Dumazet
2014-05-02 22:18 ` Sander Eikelenboom
2014-05-09 22:19 ` Neal Cardwell
2014-05-09 21:02 ` Zoltan Kiss
2014-05-13 13:40 ` Zoltan Kiss
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