linux-kernel - Re: Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI

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Date:	Tue, 14 Jul 2015 10:42:30 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Joseph Salisbury <joseph.salisbury@...onical.com>
CC:	konrad.wilk@...cle.com, tony.luck@...el.com, joro@...tes.org,
	Greg KH <gregkh@...uxfoundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Bjorn Helgaas <bhelgaas@...gle.com>, rdunlap@...radead.org,
	Yinghai Lu <yinghai@...nel.org>, bp@...en8.de,
	len.brown@...el.com, pavel@....cz,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>, mingo@...hat.com,
	hpa@...or.com, x86@...nel.org, linux-pm@...r.kernel.org
Subject: Re: Subject:  [v3.19 Regression] x86, irq, acpi: Get rid of special
 handling of GSI for ACPI SCI

On 2015/7/14 3:36, Joseph Salisbury wrote:
> Hello Jiang,
> 
> A kernel bug report was opened against Ubuntu [0]. It was found that
> reverting the following commit resolves this bug:
> 
> commit cd68f6bd53cf89d1d5ed889b8af65e9c3574a079
> Author: Jiang Liu <jiang.liu@...ux.intel.com>
> Date:   Mon Oct 27 16:11:52 2014 +0800
> 
>     x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI
> 
> The regression was introduced as of v3.19-rc1.
>     
> I was hoping to get your feedback, since you are the patch author.  Do
> you think gathering any additional data will help diagnose this issue,
> or would it be best to submit a revert request?
Hi Joseph,
	Sorry for the trouble. It would be great if we could get
more information about the bug, such as bug report info, dmesg and
acpidump from the reporting system.
Thanks!
Gerry
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