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List:       bluesmoke-devel
Subject:    Re: e752x_edac on intel 3100...
From:       Doug Thompson <norsk5 () yahoo ! com>
Date:       2008-05-05 21:25:21
Message-ID: 841840.46470.qm () web50105 ! mail ! re2 ! yahoo ! com
[Download RAW message or body]


--- Peter Tyser <ptyser@xes-inc.com> wrote:

> Hi Arthur,
> 
> > EDAC MC: Ver: 2.1.0 Apr 24 2008 
> > EDAC e752x: tolm = 80000, remapbase = ffc000, remaplimit = 0 
> > EDAC MC0: Giving out device to 'e752x_edac' '3100': DEV 0000:00:00.0 
> > EDAC PCI0: Giving out device to module 'e752x_edac' controller 'EDAC >
> PCI contro)
> > EDAC e752x: Fatal Error System Bus 
> > EDAC e752x: Non-Fatal Error System Bus 
> > EDAC e752x: Fatal Error System Bus Addr or Request Parity
> > 
> > Yet the system is running fine with no sign of 
> > Fatal errors.
> 
> What type of processor are you using?  Not all processors support system
> bus parity.  There's a chance that the parity pins aren't physically
> connected as well if you're using a custom system.  I ran into the same
> problem previously and submitted the patch seen here:
> 
http://bluesmoke.svn.sourceforge.net/viewvc/bluesmoke/trunk/edac/patches/drivers-edac-e752x_edac-add-sysbus_parity-parm.patch?revision=123&view=markup

> 
> It was submitted upstream, but I'm not sure what its current status is.

It is now in the 2.6.26-rc1 release

doug t

The patch titled
     edac: add e752x parameter for sysbus_parity selection
has been removed from the -mm tree.  Its filename was
     edac-add-e752x-parameter-for-sysbus_parity-selection.patch

This patch was dropped because it was merged into mainline or a subsystem tree

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: edac: add e752x parameter for sysbus_parity selection
From: Peter Tyser <ptyser@xes-inc.com>

Add a module parameter "sysbus_parity" to allow forcing system bus parity
error checking on or off.  Also add support to automatically disable system
bus parity errors for processors which do not support it.

If the sysbus_parity parameter is specified, sysbus parity detection will be
forced on or off.  If it is not specified, the driver will attempt to look at
the CPU identifier string and determine if the CPU supports system bus parity.
 A blacklist was used instead of a whitelist so that system bus parity would
be enabled by default and to minimize the chances of breaking things for those
people already using the driver which for some reason have a processor that
does not have a valid CPU identifier string.

[akpm@linux-foundation.org: coding-style fixes]
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---


> 
> I've never tried using EDAC as modules, so not sure about your second
> issue.
> 
> - Peter
> 
> 
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