linux-kernel - Re: SYSFS "errors"

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Message-ID: <20130218200424.GA20137@arwen.pp.htv.fi>
Date:	Mon, 18 Feb 2013 22:04:24 +0200
From:	Felipe Balbi <balbi@...com>
To:	Borislav Petkov <bp@...en8.de>, Felipe Balbi <balbi@...com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: SYSFS "errors"

On Mon, Feb 18, 2013 at 08:40:32PM +0100, Borislav Petkov wrote:
> On Mon, Feb 18, 2013 at 08:47:35PM +0200, Felipe Balbi wrote:
> > On Mon, Feb 18, 2013 at 06:45:27PM +0100, Borislav Petkov wrote:
> > > On Mon, Feb 18, 2013 at 07:27:00PM +0200, Felipe Balbi wrote:
> > > > No such device - /sys/devices/system/edac/mc/mc0/sdram_scrub_rate
> > > 
> > > Looks like your edac module doesn't allow scrub rate setting. Which edac
> > > driver is that? dmesg?
> > 
> > $ lsmod | grep -i edac
> > i7core_edac            22414  0 
> > edac_core              43453  2 i7core_edac
> 
> Ok, that would be those i7s which reportedly do
> not support reading/setting the scrub rate, see
> 27100db0e0d381d24b6f3cb1a4f439996e7c00c8, for example.
> 
> So this is as expected.
> 
> Maybe it would be more correct if the core would return "N/A" or
> "unsupported" or something to that effect in such cases, to conform with
> the readable flag of the sysfs file.

yeah, that would be cool :-)

-- 
balbi

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