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: Fri, 26 Mar 2010 10:12:34 +0100 [thread overview]
Message-ID: <20100326091234.GA11959@Dublin.logfs.org> (raw)
In-Reply-To: <51f3faa71003251756h17374375yd3a5d2acee2ffab9@mail.gmail.com>
On Thu, 25 March 2010 18:56:03 -0600, Robert Hancock wrote:
>
> Francois, ping? Is there anyone else that has access to this kind of
> information about these chips?
>
> It's kind of interesting that there's only been one report of this
> though. Either the affected chips are rare among people testing
> 2.6.34-rc or there's something more to this. Maybe something
> wierd/unusual about Jörn's system?
>
> Jörn, are any other devices on your system working with 64-bit
> addressing? Try doing this:
>
> find /sys -name "*dma_mask_bits*" | xargs cat
>
> Does anything show more than 32?
I've slightly changed the command:
# for i in `find /sys -name "*dma_mask_bits*"`; do echo -n "$i: "; cat $i; done
/sys/devices/pci0000:00/0000:00:00.0/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:00.0/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:02.0/dma_mask_bits: 36
/sys/devices/pci0000:00/0000:00:02.0/consistent_dma_mask_bits: 36
/sys/devices/pci0000:00/0000:00:1c.0/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1c.0/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1c.1/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1c.1/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1c.1/0000:01:00.0/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1c.1/0000:01:00.0/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.0/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.0/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.1/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.1/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.2/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.2/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.3/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.3/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.7/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1d.7/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1e.0/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1e.0/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.0/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.0/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.1/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.1/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.2/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.2/consistent_dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.3/dma_mask_bits: 32
/sys/devices/pci0000:00/0000:00:1f.3/consistent_dma_mask_bits: 32
One device, which should be this one:
00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express Integrated Graphics Controller (rev 10)
J�rn
next prev parent reply other threads:[~2010-03-26 9:12 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 [this message]
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
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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