linux-kernel - Re: ACPI: regression: Failed to initialize GIC IRQ controller

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Message-ID: <CAOHikRAKDEoRh7v11Nt-5nNsnJMueWtK+1WZs=u8AaAAf+b4GA@mail.gmail.com>
Date:	Fri, 10 Jul 2015 15:07:28 +0530
From:	Suman Tripathi <stripathi@....com>
To:	Marc Zyngier <marc.zyngier@....com>
Cc:	Ming Lei <ming.lei@...onical.com>,
	Bob Moore <robert.moore@...el.com>,
	Lv Zheng <lv.zheng@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Jason Cooper <jason@...edaemon.net>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"hanjun.guo@...aro.org" <hanjun.guo@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: ACPI: regression: Failed to initialize GIC IRQ controller

On Fri, Jul 10, 2015 at 1:53 PM, Marc Zyngier <marc.zyngier@....com> wrote:
> On 10/07/15 09:17, Suman Tripathi wrote:
>> On Fri, Jul 10, 2015 at 1:28 PM, Marc Zyngier <marc.zyngier@....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 the patch mentioned by you fixes the issue.

[1] https://lkml.org/lkml/2015/7/6/876

>
> Thanks,
>
>         M.
> --
> Jazz is not dead. It just smells funny...



-- 
Thanks,
with regards,
Suman Tripathi
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