linux-kernel - Re: 4.7 regression: ACPI: No IRQ available for PCI Interrupt Link [LNKD]. Try pci=noacpi or acpi=off

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Date:   Wed, 28 Sep 2016 14:22:40 -0400
From:   Sinan Kaya <okaya@...eaurora.org>
To:     Ondrej Zary <linux@...nbow-software.org>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: 4.7 regression: ACPI: No IRQ available for PCI Interrupt Link
 [LNKD]. Try pci=noacpi or acpi=off

On 9/28/2016 1:02 PM, Ondrej Zary wrote:
>> Thanks, It sounds like you have more than one machine with similar
>> > problems. Can you collect the log from the other machines with 4.8-rc8?
>> >
>> > and also a boot log with 4.6 kernel where things are working?
> The attached logs are from another machine:
> 
> dmesg-bad-debug.txt: 4.8-rc8 with your debug patch - bad
> 
> dmesg-reverted.txt: 4.8-rc8 with patches (as per Rafael's suggestion) 
> reverted - good
> 
> dmesg-3.6.txt: 4.6 (Debian kernel) - good

I think I see a race condition for the SCI interrupt. I need another dump from
4.8-rc8 with the attached patch to confirm. Let's remove the previous one and
apply this one.



-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

View attachment "0001-acpi-pci_link-debug-aids-v2.patch" of type "text/plain" (2891 bytes)