Jason,
On 25 Sep 01:17 PM, Grzegorz Jaszczyk wrote:
> This patchset contains a set of fixes for issues found while doing some test
> with different interrupts configuration on Armada 375 and Armada 38x Marvell
> SoCs. The patches were tested and apply on v3.17-rc6.
>
> Any feedback is welcome.
>
> Grzegorz Jaszczyk (2):
> irqchip: armada-370-xp: fix MSI interrupt handling
> irqchip: armada-370-xp: fix MPIC interrupt handling
The second patch fixes an unhandled IRQ storm triggered by the mvpp2
ethernet driver, when the kernel is built with CONFIG_SMP=n.
When any network activity is attempted the kernel is interrupted by a per-cpu
IRQ (which is not the one the driver expects). The interrupt is not mapped
into Linux's virtual IRQ space, so the result is:
irq 0, desc: ee004000, depth: 1, count: 0, unhandled: 0
->handle_irq(): c00466e8, handle_bad_irq+0x0/0x260
->irq_data.chip(): c1181460, 0xc1181460
->action(): (null)
IRQ_NOPROBE set
IRQ_NOREQUEST set
For both patches:
Fixes: bc69b8adfe22 ("irqchip: armada-370-xp: Setup a chained handler for the
MPIC")
Acked-by: Ezequiel Garcia <ezequiel.gar...@free-electrons.com>
Thanks,
--
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
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