linux-kernel - Re: [linux-pm] sleepy linux self-test

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Message-ID: <20080203051425.GA20740@elte.hu>
Date:	Sun, 3 Feb 2008 06:14:25 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	David Brownell <david-b@...bell.net>
Cc:	Pavel Machek <pavel@....cz>, linux-pm@...ts.linux-foundation.org,
	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [linux-pm] sleepy linux self-test


* Ingo Molnar <mingo@...e.hu> wrote:

> > OK, here's a version that's cleaner and suspends.  Resuming ... 
> > another story, it's currently broken on this ARM board (no 
> > relationship to this testing code).
> 
> yay! Threw this into my setup. It built fine with the new option 
> disabled and enabled as well. Unfortunately it said this:
> 
> [   23.509562] Calling initcall 0xc0c49e00: be_sleepy+0x0/0x170()
> [   23.515837] PM: no wakelarm-capable RTC
> [   23.517562] initcall 0xc0c49e00: be_sleepy+0x0/0x170() returned 0.
> 
> (oh, btw., a small typo: s/wakelarm/wakealarm/)
> 
> is "wakealarm" something generally available on PC RTCs? I'll try to 
> look into the BIOS setup, maybe it's just disabled ...

ok, there was indeed a "RTC Alarm: disabled" option in the BIOS. But no 
matter how many of those resume-alarm options i enabled, the kernel 
thinks there's no time capability:

 [   23.541565] Calling initcall 0xc0c49e00: be_sleepy+0x0/0x170()
 [   23.547840] PM: no wakelarm-capable RTC
 [   23.549566] initcall 0xc0c49e00: be_sleepy+0x0/0x170() returned 0.

i could set date/time of wakeup alarm in the BIOS, so i suspect the chip 
itself is capable of it. Bootlog and kernel config attached. (maybe i 
misconfigured something?)

	Ingo

View attachment "config" of type "text/plain" (52856 bytes)

Download attachment "boot.log.bz2" of type "application/x-bzip2" (40988 bytes)