linux-kernel - Re: Async suspend-resume patch w/ completions (was: Re: Async suspend-resume patch w/ rwsems)

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Message-ID: <Pine.LNX.4.44L0.0912161753540.2643-100000@iolanthe.rowland.org>
Date:	Wed, 16 Dec 2009 18:04:08 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Zhang Rui <rui.zhang@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: Async suspend-resume patch w/ completions (was: Re: Async
 suspend-resume patch w/ rwsems)

On Wed, 16 Dec 2009, Rafael J. Wysocki wrote:

> I've just put the first set of data, for the HP nx6325 at:
> http://www.sisk.pl/kernel/data/nx6325/
>  
> The *-dmesg.log files contain full dmesg outputs starting from a cold boot and
> including one suspend-resume cycle in each case, with debug_initcall enabled.
> 
> The *-suspend.log files are excerpts from the *-dmesg.log files containing
> the suspend messages only, and analogously for *-resume.log.

I've just started looking at the sync-suspend.log file.  What are all 
the '+' characters and " @ 3368" strings after the device names?

You didn't print out the parent name for each device, so the tree 
structure has been lost.

Why do those "sd 0:0:0:0 [sda]" messages appear in between two 
callbacks?  The cache-synchronization and the spin-down commands are
not executed asynchronously.

Alan Stern

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