linux-kernel - Re: Bisected Linux regression: ACPI powerbutton events don't work under Xen since commit b81975eade8c6495f3c4d6746d22bdc95f617777

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Message-ID: <54942693.6080007@linux.intel.com>
Date:	Fri, 19 Dec 2014 21:22:27 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Sander Eikelenboom <linux@...elenboom.it>, konrad.wilk@...cle.com,
	David Vrabel <david.vrabel@...rix.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>
CC:	linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org
Subject: Re: Bisected Linux regression: ACPI powerbutton events don't work
 under Xen since commit b81975eade8c6495f3c4d6746d22bdc95f617777

Hi Sander,
	Sorry for the trouble, I will investigate on next Monday.
Regards!
Gerry

On 2014/12/19 21:16, Sander Eikelenboom wrote:
> Hi,
> 
> When running under Xen, ACPI powerbutton events don't work anymore, 
> there is no reaction when pressing the powerbutton.
> 
> On baremetal everything works fine, acpid gets the event and the 
> machine powers down perfectly. The machine is an Intel NUC.
>  
> Bisection has lead to:
> 
> b81975eade8c6495f3c4d6746d22bdc95f617777 is the first bad commit
> commit b81975eade8c6495f3c4d6746d22bdc95f617777
> Author: Jiang Liu <jiang.liu@...ux.intel.com>
> Date:   Mon Jun 9 16:20:11 2014 +0800
> 
>     x86, irq: Clean up irqdomain transition code
> 
>     Now we have completely switched to irqdomain, so clean up transition code
>     in IOAPIC drivers.
> 
>     Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
>     Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>     Cc: Tony Luck <tony.luck@...el.com>
>     Cc: Joerg Roedel <joro@...tes.org>
>     Cc: Paul Gortmaker <paul.gortmaker@...driver.com>
>     Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>     Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
>     Cc: Grant Likely <grant.likely@...aro.org>
>     Cc: Rafael J. Wysocki <rjw@...ysocki.net>
>     Cc: Bjorn Helgaas <bhelgaas@...gle.com>
>     Cc: Randy Dunlap <rdunlap@...radead.org>
>     Cc: Yinghai Lu <yinghai@...nel.org>
>     Link: http://lkml.kernel.org/r/1402302011-23642-43-git-send-email-jiang.liu@linux.intel.com
>     Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> 
> Reverting this specific commit on linux-tip (3.19-mw) gets things working again under Xen.
> Kernel .config is attached.
> 
> --
> Sander
> 
--
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