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Date: Fri, 10 Jul 2015 18:11:23 +0800
Message-ID: <CACVXFVMcKuj+uan43dqT0+=5=nm+Drt1WzBSng9OCEF3ThSufg@mail.gmail.com>
Subject: Re: ACPI: regression: Failed to initialize GIC IRQ controller
From: Ming Lei <ming.lei@canonical.com>
To: Marc Zyngier <marc.zyngier@arm.com>
Cc: Suman Tripathi <stripathi@apm.com>, Bob Moore <robert.moore@intel.com>,
        Lv Zheng <lv.zheng@intel.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        Jason Cooper <jason@lakedaemon.net>,
        Catalin Marinas <Catalin.Marinas@arm.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "hanjun.guo@linaro.org" <hanjun.guo@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>,
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On Fri, Jul 10, 2015 at 4:23 PM, Marc Zyngier <marc.zyngier@arm.com> wrote:
> On 10/07/15 09:17, Suman Tripathi wrote:
>> On Fri, Jul 10, 2015 at 1:28 PM, Marc Zyngier <marc.zyngier@arm.com> wrote:
>>>
>>> On 10/07/15 08:45, Ming Lei wrote:
>>>> Hi,
>>>>
>>>> Commit 0cff8dc0099f6d4f(ACPICA: ACPI 6.0: Add changes for MADT table.)
>>>> causes the following failure on APM mustang board(arm64) when
>>>> booting via UEFI and ACPI:
>>>>
>>>> No valid GICC entries exist
>>>> ACPI: Failed to initialize GIC IRQ controller
>>>> Kernel panic - not syncing: No interrupt controller found.
>>>> CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-rc1+ #45
>>>> Hardware name: APM X-Gene Mustang board (DT)
>>>> Call trace:
>>>> [<ffffffc000089b94>] dump_backtrace+0x0/0x12c
>>>> [<ffffffc000089cd0>] show_stack+0x10/0x1c
>>>> [<ffffffc0005fac18>] dump_stack+0x8c/0xdc
>>>> [<ffffffc0005f7218>] panic+0xe4/0x220
>>>> [<ffffffc00082631c>] init_IRQ+0x24/0x30
>>>> [<ffffffc00082486c>] start_kernel+0x274/0x3d8
>>>> ---[ end Kernel panic - not syncing: No interrupt controller found.
>>>
>>> Isn't that addressed by [1] which Catalin has queued for -rc2?
>>
>>
>> I am also seeing the same . But it fixes after I apply the parking
>> protocol  patch but that is not upstreamed.
>
> I'm more interested to find out if the patch I mentioned in my original
> email fixes it or not. An additional dependency on something that is not
> aimed for mainline yet doesn't really help.

Yes, Al's patches do fix the issue.

Thanks,
Ming
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