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

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Message-ID: <55A54540.9050300@canonical.com>
Date:	Tue, 14 Jul 2015 13:22:08 -0400
From:	Joseph Salisbury <joseph.salisbury@...onical.com>
To:	Jiang Liu <jiang.liu@...ux.intel.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 07/13/2015 10:42 PM, Jiang Liu wrote:
> 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
Comments 3 and 4 have the requested information in the bugzilla bug:
https://bugzilla.kernel.org/show_bug.cgi?id=101301

Thanks again for the help!

Joe

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