Re: ACPI: regression: Failed to initialize GIC IRQ controller

From: Hanjun Guo
Date: Fri Jul 10 2015 - 07:11:24 EST


On 07/10/2015 06:11 PM, Ming Lei wrote:
On Fri, Jul 10, 2015 at 4:23 PM, Marc Zyngier <marc.zyngier@xxxxxxx> wrote:
On 10/07/15 09:17, Suman Tripathi wrote:
On Fri, Jul 10, 2015 at 1:28 PM, Marc Zyngier <marc.zyngier@xxxxxxx> 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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