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From: "J�rn Engel" <joern@dublin.logfs.org>
To: Robert Hancock <hancockrwd@gmail.com>
Cc: David Miller <davem@davemloft.net>,
	torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, romieu@fr.zoreil.com
Subject: Re: [Regression] r8169: enable 64-bit DMA by default for PCI Express devices (v2)
Date: Sat, 27 Mar 2010 23:00:39 +0100	[thread overview]
Message-ID: <20100327220039.GA2083@Dublin.logfs.org> (raw)
In-Reply-To: <4BAE4464.9060909@gmail.com>

On Sat, 27 March 2010 11:46:12 -0600, Robert Hancock wrote:
>
> Hm, do you recall/have the details of what happened with the other card?

It lost interrupts.  I had a testcase that should have received three
interrupts and only two were received by the driver.  100%
reproducable.  Card used MSI-Interrupts (no MSI-X) and worked
reasonably well otherwise.  But it is a prototype, so the card is just
as likely to be the cause as the motherboard.

> It's possible this is some general problem with that machine/motherboard  
> and not actually an issue with what the driver is doing. What kind of  
> board is that?

Possible, yes.  But I wouldn't know how to prove it.
Asrock G31M-S with Intel E5200.

J�rn

  reply	other threads:[~2010-03-27 22:00 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20100315150806.GA15354@Dublin.logfs.org>
     [not found] ` <20100315151041.GA15667@Dublin.logfs.org>
2010-03-15 18:57   ` [Regression] r8169: enable 64-bit DMA by default for PCI Express devices (v2) David Miller
2010-03-15 23:28     ` Robert Hancock
2010-03-16  8:35       ` J�rn Engel
2010-03-16 23:30         ` Robert Hancock
2010-03-16 23:40           ` David Miller
2010-03-26  0:56           ` Robert Hancock
2010-03-26  3:29             ` David Miller
2010-03-26  9:12             ` J�rn Engel
2010-03-27  1:55               ` Robert Hancock
2010-03-27  6:38                 ` J�rn Engel
2010-03-27 17:46                   ` Robert Hancock
2010-03-27 22:00                     ` J�rn Engel [this message]
2010-03-27 11:57                 ` =?unknown-8bit?B?RnJhbsOnb2lz?= Romieu
2010-03-17 20:52         ` Francois Romieu
2010-03-18  9:03           ` J�rn Engel

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