linux-kernel - Re: [patch 2.6.26-git] pm selftest: rtc paranoia

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Message-Id: <200807251522.02789.david-b@pacbell.net>
Date:	Fri, 25 Jul 2008 15:22:02 -0700
From:	David Brownell <david-b@...bell.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org
Subject: Re: [patch 2.6.26-git] pm selftest:  rtc paranoia

On Friday 25 July 2008, Andrew Morton wrote:
> On Fri, 25 Jul 2008 13:26:51 -0700
> David Brownell <david-b@...bell.net> wrote:
> 
> > From: David Brownell <dbrownell@...rs.sourceforge.net>
> > 
> > Cope with a quirk of some RTCs (notably ACPI ones) which
> > aren't guaranteed to implement oneshot behavior when they
> > woke the system from sleeep:  forcibly disable the alarm,
> > just in case.
> > 
> > ...
> 
> I assume this fixes some reported bug?  Any references?

It's more paranoia than anything else ... I saw a version
of this with on x86, but that was because of problems in
the HPET glue (fixed by a previous patch).

 
> Is this needed in 2.6.26.x?  2.6.25.x?

The selftest only merged this week, so not 2.6.25;
and since it's just paranoia, it shouldn't be critical
for 2.6.26 either.

- Dave



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