linux-kernel - Re: echo mem > /sys/power/state

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Message-Id: <20080118004725.dcd132ee.akpm@linux-foundation.org>
Date:	Fri, 18 Jan 2008 00:47:25 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Zan Lynx <zlynx@....org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Len Brown <lenb@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: echo mem > /sys/power/state

On Fri, 18 Jan 2008 09:36:10 +0100 Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Rafael J. Wysocki <rjw@...k.pl> wrote:
> 
> > > Probably it would be more efficient to have the people who wrote the 
> > > code also test it.
> > 
> > Well, that would certainly help.
> > 
> > I do test all of my patches and generally all of the patches I sign 
> > off, but surely that's not enough.
> 
> please add a .config option dependent on CONFIG_DEBUG_KERNEL=y [and 
> default-disabled] that auto-tests suspend/resume functionality 60 
> seconds after hitting user-space (the suspend/resume cycle kept small 
> via a small RTC timeout) and s2ram correctness will be tested _a lot_ 
> more.
> 
> (it doesnt matter if graphics does not resume fine - at least for my 
> tests)
> 
> kprobes had similar problems and it now has a few simple smoke-tests - 
> which i just saw trigger on a patch that i did not notice would break 
> kprobes. I think this should be done for all functionality that is not 
> regularly triggered by a normal distro bootup (and which is easy to 
> overlook in testing).
> 

Seeing as we're so lame about being able to distribute userspace stuff:
create a shell script in /proc/rc.kernel and start teaching initscripts to
run it.  Then we can modify it at will.

I hate me.
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