linux-kernel - Re: [Bug 10866] /dev/rtc was missing until I disabled CONFIG_RTC

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Date:	Sat, 14 Jun 2008 00:20:23 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Lior Dotan <liodot@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	a.zummo@...ertech.it,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	bugme-daemon@...zilla.kernel.org, rtc-linux@...glegroups.com
Subject: Re: [Bug 10866] /dev/rtc was missing until I disabled
	CONFIG_RTC_CLASS

On Fri, Jun 13, 2008 at 10:55:38PM +0300, Lior Dotan wrote:
> On Fri, Jun 13, 2008 at 10:33 PM, Adrian Bunk <bunk@...nel.org> wrote:
> > On Sat, Jun 07, 2008 at 10:42:57PM +0200, Rafael J. Wysocki wrote:
> >> This message has been generated automatically as a part of a report
> >> of recent regressions.
> >>
> >> The following bug entry is on the current list of known regressions
> >> from 2.6.25.  Please verify if it still should be listed.
> >>
> >>
> >> Bug-Entry     : http://bugzilla.kernel.org/show_bug.cgi?id=10866
> >> Subject               : /dev/rtc was missing until I disabled CONFIG_RTC_CLASS
> >> Submitter     : Lior Dotan <liodot@...il.com>
> >> Date          : 2008-06-05 15:04 (3 days old)
> >> References    : http://marc.info/?l=linux-kernel&amp;m=121267834521432&amp;w=4
> >
> > Where are we regarding this entry in the 2.6.26-rc regression list?
> >
> > I'd agree with David that CONFIG_RTC_CLASS disabling CONFIG_RTC is a fix
> > and not a 2.6.26-rc regression.
> >
> > Does anyone disagree with this?
> >
> >
> > I'm not sure whether this was Lior's problem or another issue I'm seeing
> > on my computer (static /dev, no udev):
> >
> > /dev/rtc (major 10, minor 135) does not seem to exist, and I'd call this
> > a functional regression of the new drivers.
> >
> > Could this be fixed?
> 
> I don't know if it helps you to decide but the way I got to this 
> configuration is by copying my working 2.6.25 .config file and running 
> make oldconfig. I think this scenario is common when upgrading to a 
> newer version so you should make sure it doesn't generate an invalid 
> configuration.

What is the output of "grep RTC_ .config" on your old .config?

> Lior.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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