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From: Stephan von Krawczynski <skraw@ithnet.com>
To: Alan Cox <alan@redhat.com>
Cc: kimball@serverworks.com, alan@redhat.com,
	davej@codemonkey.org.uk, torvalds@transmeta.com,
	linux-kernel@vger.kernel.org
Subject: Re: Tighten up serverworks workaround.
Date: Mon, 3 Mar 2003 11:45:04 +0100	[thread overview]
Message-ID: <20030303114504.72f47d0e.skraw@ithnet.com> (raw)
In-Reply-To: <200302261803.h1QI3BT24020@devserv.devel.redhat.com>

On Wed, 26 Feb 2003 13:03:10 -0500 (EST)
Alan Cox <alan@redhat.com> wrote:

> > How can e help?  Please give me a configuration and how the bug manifests
> > inself.
> 
> OSB4 chipset system, some memory areas marked write combining with the
> processor memory type range registers. A long time ago Dell (I
> think) reported corruption from this and submitted changes to block the
> use of write combining on OSB4. The question has arisen as to whether
> thats a known thing, and if so which release of the chipset fixed it so that
> people can only apply such a restriction to problem cases not all OSB4.
> 
> Alan

While we are at the topic. What exactly is this:

00:00.2 Host bridge: ServerWorks: Unknown device 0006 (rev 01)
        Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-

00:00.3 Host bridge: ServerWorks: Unknown device 0006 (rev 01)
        Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-

00:0f.3 Host bridge: ServerWorks: Unknown device 0225
        Subsystem: ServerWorks: Unknown device 0230  
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0

Taken from an Asus TRL-DLS.

-- 
Regards,
Stephan


  parent reply	other threads:[~2003-03-03 10:35 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-02-26 13:49 Tighten up serverworks workaround davej
2003-02-26 16:27 ` Alan Cox
2003-02-26 16:29   ` Dave Jones
2003-02-26 16:36     ` Alan Cox
2003-02-26 17:27       ` Kimball Brown
2003-02-26 18:03         ` Alan Cox
2003-02-26 18:47           ` Jonathan Lundell
2003-02-27 12:14             ` Ingo Oeser
2003-03-03  9:03           ` Mike A. Harris
2003-03-03 10:45           ` Stephan von Krawczynski [this message]
2003-03-03 12:02             ` Alan Cox
2003-03-03 12:46               ` Stephan von Krawczynski
2003-03-03 14:42                 ` Alan Cox

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