linux-kernel - Re: Unreliable hibernation on Lenovo x230 (regression)

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Date:	Mon, 6 Apr 2015 09:12:34 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	joeyli <jlee@...e.com>, Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Borislav Petkov <bp@...e.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	rhn <kebuac.rhn@...cupinefactory.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Pavel Machek <pavel@....cz>,
	kernel list <linux-kernel@...r.kernel.org>,
	"Lee, Chun-Yi" <joeyli.kernel@...il.com>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Borislav Petkov <bp@...en8.de>
Subject: Re: Unreliable hibernation on Lenovo x230 (regression)


* Yinghai Lu <yinghai@...nel.org> wrote:

> On Sun, Apr 5, 2015 at 12:24 AM, joeyli <jlee@...e.com> wrote:
> >> >
> >>
> >> I took the commit 8f778bbc542ddf8f6243b21d6aca087e709cabdc as the base for further checking (I started building before I read your message). It's a descendant of 4.0-rc6, so I hope it's not going to make a difference.
> >>
> >> Results:
> >> 8f778bb : bad
> >> 8f778bb + reverted 84c91b7 : good
> >> 8f778bb + patch [1] : good
> >
> > Thanks for your dmesg on bko#96111.
> > I checked and confirm there have the situation of setup_data reserved as E820_RESERVED_KERN.
> > I will add comment on bugzilla.
> >
> >>
> >> Thanks!
> >>
> >> [1]:
> >> x86: Kill E820_RESERVED_KERN  https://lkml.org/lkml/2015/3/4/434 as suggested in joeyli's other email.
> >
> > I think just revert 84c91b7ae until Yinghai Lu's patches merged to v4.1.
> > I will resend 84c91b7ae patch until Yinghai Lu's patches merged.
> 
> Can you please put https://lkml.org/lkml/2015/3/4/434
> into tip?

I cannot apply this patch without a readable changelog, see:

  http://lkml.iu.edu/hypermail/linux/kernel/1503.1/05342.html

Your changelog (again) violates about half of the principles I tried 
to outline in that post.

Thanks,

	Ingo
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