On 05/01/12 14:42, Geert Uytterhoeven wrote:
> On Thu, Jan 5, 2012 at 13:55, Alan Hourihane <al...@fairlite.co.uk> wrote:
>> Linux version 3.1.0-atari-00246-gbff0dc7 (root@server) (gcc version
> bff0dc7 = m68k-v3.1. That kernel still has the SCC driver, but it depends on
> BROKEN, so you cannot select it.
> If you revert 173808aa9203cf752518acd80fde3c9c910ddd0f ("m68k/atari: SCC
> - Mark Atari serial driver BROKEN") you can select CONFIG_ATARI_SCC again,
> and get a real serial console.
>
> But first the interrupt storm must be fixed.
>
>> unexpected interrupt from 112
> That's the vector number, so the actual IRQ number is 112 / 4 = 28, which is
> IRQ_TT_MFP_TIMD. Sorry, no clues.
It's worth enhancing that message then as the NR_IRQs reported was 72.
And it really confused me that 112 appeared.
Maybe...
"unexpected interrupt from 28, vector 112" ?
> Can you please try a pristine v3.1? The only relevant differences are the
> conversion to the genirq framework and the Atari SCC driver.
Will do.
> If that works, I guess it's a regression introduced by the genirq conversion.
> Then you can bisect between v3.1 and m68k-v3.1.
>
> BTW, in between 9fa434585e5f6cfeae685505b4cd8465dbab1dff ("m68k/irq:
> Add genirq support") and 971ae31663e817a5e5b673d30c7652d9160145f0
> ("m68k/irq: Remove obsolete m68k irq framework"), genirq support is a config
> option that can be turned on or off.
>
O.k. thanks.
Alan.
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