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From: Hayes Wang <hayeswang@realtek.com>
To: Ansis Atteka <aatteka@nicira.com>
Cc: David Miller <davem@davemloft.net>,
	"mlord@pobox.com" <mlord@pobox.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	nic_swsd <nic_swsd@realtek.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	Ansis Atteka <aatteka@ovn.org>
Subject: RE: [PATCH net 1/2] r8152: fix the sw rx checksum is unavailable
Date: Mon, 9 Jan 2017 07:58:02 +0000	[thread overview]
Message-ID: <0835B3720019904CB8F7AA43166CEEB20106C4D6@RTITMBSV03.realtek.com.tw> (raw)
In-Reply-To: <CAA=3Oqn1i0cFDw1yi=vWJuU=w-N+8T7i3+xx9qQtrQCatAi+8Q@mail.gmail.com>

Ansis Atteka [mailto:aatteka@nicira.com]
> Sent: Tuesday, January 03, 2017 8:41 AM
[...]
> Hayes, in your iperf reproduction environment did you
> 1) connect sender and receiver directly with an Ethernet cable?
> 2) use iperf's TCP mode instead of UDP mode, because I believe that
> with UDP mode packets are more likely to be sparsely distributed?
> Also, this bug is way easier to reproduce when IP fragmentation kicks
> in because IP fragments are typically sent out very close to each
> other.
> 3) were you plugging your USB Ethernet dongle in USB 3.0 port or
> whatever Mark was using? It seems that each USB mode has different
> coalesce parameters and yours might have work "out of box"?

Yes. I connect them directly and use iperf's TCP mode. However,
I test the RTL8152 which only support USB 2.0. Therefore, I don't
think it occurs with different coalesce parameters.

> While I would not call this a proper fix, because it simply reduces
> coalescing timeouts by order of 10X and most likely does not eliminate
> security aspects of the bug, it at least made my system functionally
> stable and I don't see either of those two bugs in my setup anymore:

Do you try commit a59e6d815226 ("r8152: correct the rx early size"),
or you have used it?

Best Regards,
Hayes

  parent reply	other threads:[~2017-01-09  7:58 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-11  7:15 [PATCH net 0/2] r8152: rx patches Hayes Wang
2016-11-11  7:15 ` [PATCH net 1/2] r8152: fix the sw rx checksum is unavailable Hayes Wang
2016-11-17  3:36   ` Hayes Wang
2016-11-17 14:14     ` Mark Lord
2016-11-17 14:25       ` Mark Lord
     [not found]     ` <d683c019-4e0f-6fe6-368c-c4fc86c72fe6@pobox.com>
2016-11-18  7:57       ` Hayes Wang
2016-11-18 12:03         ` Mark Lord
2016-11-22 13:12           ` Mark Lord
2016-11-23  3:52           ` Hayes Wang
2016-11-23 13:41             ` Mark Lord
2016-11-23 15:12               ` Hayes Wang
2016-11-23 19:29                 ` Mark Lord
2016-11-24  3:24                   ` Hayes Wang
2016-11-24 12:31                   ` Mark Lord
2016-11-24 13:26                     ` Hayes Wang
2016-11-24 15:24                       ` Mark Lord
2016-11-25  6:11                         ` Hayes Wang
2016-11-25 12:36                           ` Mark Lord
2016-11-24 16:21                       ` David Miller
2016-11-24 16:43                         ` Mark Lord
2016-11-24 17:00                           ` Mark Lord
2016-11-24 17:13                             ` David Miller
2016-11-24 17:11                           ` David Miller
2016-11-24 18:34                             ` Mark Lord
2016-11-24 18:49                               ` Mark Lord
2016-11-24 19:00                               ` Greg KH
2016-11-24 19:10                                 ` Mark Lord
2016-11-24 19:17                                   ` Greg KH
2016-11-25  9:52                                   ` Hayes Wang
2016-11-25 13:32                                     ` Mark Lord
2016-11-25  0:27                               ` Francois Romieu
2016-11-25  3:49                                 ` Mark Lord
2016-11-25  9:53                                   ` Greg KH
2016-11-25 12:34                                     ` Mark Lord
2016-11-25 12:41                                       ` Mark Lord
2016-11-25 14:22                                         ` Greg KH
2016-11-25 14:35                                           ` Mark Lord
2016-11-25 12:49                                     ` Mark Lord
2016-11-25 14:24                                       ` Greg KH
2016-11-25 16:58                                       ` David Miller
2016-11-30 11:58                                         ` Hayes Wang
2016-12-09  3:23                                           ` Hayes Wang
2016-12-09 13:05                                             ` Mark Lord
2017-01-01  0:07                                           ` Ansis Atteka
2017-01-03  0:40                                             ` Ansis Atteka
2017-01-03 13:19                                               ` Mark Lord
2017-01-09  7:58                                               ` Hayes Wang [this message]
2019-01-05 14:14                                             ` r8152: data corruption in various scenarios Mark Lord
2019-01-05 14:22                                               ` Mark Lord
2019-01-06 19:14                                               ` Kai Heng Feng
2019-01-06 21:13                                                 ` Mark Lord
2019-01-06 21:16                                                   ` Mark Lord
2019-01-07  3:53                                                     ` Hayes Wang
2019-01-07 16:01                                                       ` Mario.Limonciello
2019-01-07 18:06                                                         ` Mark Lord
2019-01-07 18:27                                                           ` Mario.Limonciello
2019-01-07 19:24                                                             ` Mark Lord
2019-01-07  4:09                                                     ` Kai Heng Feng
2019-01-07  4:13                                                       ` Mark Lord
2019-01-07  6:46                                                         ` Kai Heng Feng
2019-01-07  7:01                                                           ` Mark Lord
2016-11-24 18:42                           ` [PATCH net 1/2] r8152: fix the sw rx checksum is unavailable Greg KH
2016-11-24 18:58                             ` Mark Lord
2016-11-25  6:31                           ` Hayes Wang
2016-11-25  6:51                             ` Hayes Wang
2016-11-25 12:35                               ` Mark Lord
2016-11-24 16:19                     ` David Miller
2016-11-24 12:37               ` Hayes Wang
2016-11-11  7:15 ` [PATCH net 2/2] r8152: rx descriptor check Hayes Wang
2016-11-11 12:13   ` Francois Romieu
2016-11-12 13:21     ` Mark Lord
2016-11-14  6:43     ` Hayes Wang
2016-11-15  1:10       ` Francois Romieu
2016-11-17  3:05         ` Hayes Wang
2016-11-13 17:39   ` David Miller
2016-11-13 20:34     ` Mark Lord
2016-11-13 20:38       ` Mark Lord
2016-11-14  7:23       ` Hayes Wang
2016-11-14 17:27         ` David Miller
2016-11-14  7:03     ` Hayes Wang

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