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Message-ID: <559FA836.8020001@linaro.org>
Date: Fri, 10 Jul 2015 19:10:46 +0800
From: Hanjun Guo <hanjun.guo@linaro.org>
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To: Ming Lei <ming.lei@canonical.com>, 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>,
        Thomas Gleixner <tglx@linutronix.de>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: ACPI: regression: Failed to initialize GIC IRQ controller
References: <CACVXFVPkZYm2i+S3m8B0tixKmTx02psGndo79ehdJxLiz9T92A@mail.gmail.com>	<559F7B2C.6090402@arm.com>	<CAOHikRBYS-oaWa8qKd+6-2LZ4drVrWnfvqN34cGEu8QxbrMX1Q@mail.gmail.com>	<559F8115.1060801@arm.com> <CACVXFVMcKuj+uan43dqT0+=5=nm+Drt1WzBSng9OCEF3ThSufg@mail.gmail.com>
In-Reply-To: <CACVXFVMcKuj+uan43dqT0+=5=nm+Drt1WzBSng9OCEF3ThSufg@mail.gmail.com>
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On 07/10/2015 06:11 PM, Ming Lei wrote:
> 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.

I should have read ahead :)

Thanks
Hanjun
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