Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [RFC PATCH] irqchip/sifive-plic: Fix getting wrong chip_data when interrupt is hierarchy | Date | Sun, 01 Nov 2020 17:52:06 +0100 |
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On Sun, Nov 01 2020 at 12:10, Marc Zyngier wrote:
> On Thu, 29 Oct 2020 10:37:38 +0800, Greentime Hu wrote: >> This oops is caused by a wrong chip_data and it is because plic_irq_unmask >> uses irq_get_chip_data(irq_data->irq) to get the chip_data. However it may >> get another irq_data with the same irq_data->irq if it is hierarchy. >> >> In this case, it will get irq_data of sifive_gpio_irqchip instead of >> plic_chip so that it will get a wrong chip_data and then the wrong lmask >> of it to cause this oops. >> >> [...] > > Applied to irq/irqchip-next, thanks!
That should go into urgent, the offending commit is in Linus tree already
Thanks,
tglx
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