Re: [PATCH 0/2] ARM: mach-shmobile: KZM9G SMP support

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On Thu, May 10, 2012 at 12:09:42AM -0700, Kuninori Morimoto wrote:
> 
> Hi Rafael
> Cc Simon, Magnus
> 
> These are KZM9G SMP support patches
> 
> Kuninori Morimoto (2):
>       mach-shmobile: sh73a0 SMP TWD boot regression fix
>       ARM: mach-shmobile: kzm9g: enable SMP boot
> 
> These are based on Magnus's patches.
>       mach-shmobile: Invalidate caches when booting secondary cores
>       mach-shmobile: r8a7779 SMP TWD boot regression fix

Hi Morimoto-san,

I am having a little trouble with SMP on the kzm9g.  I am using Rafael's
renesas/next branch (5658c94), which includes all the patches above. The
only local change I have is to add KZM-A9-GT to mach-types. Perhaps I need
some other patches?


Using the default config I do get a prompt, but I see the following along
the way, multiple times.

intc: Registered controller 'sh73a0-intcs' with 77 IRQs
intc: Registered controller 'sh73a0-intca-irq-pins' with 32 IRQs
intc: Registered controller 'sh73a0-pint0' with 32 IRQs
intc: Registered controller 'sh73a0-pint1' with 8 IRQs
------------[ cut here ]------------
WARNING: at arch/arm/mach-shmobile/intc-sh73a0.c:450 sh73a0_init_irq+0x10c/0x1d0()
Modules linked in:
Backtrace: 
[<c0012768>] (dump_backtrace+0x0/0x110) from [<c02cf524>] (dump_stack+0x18/0x1c) r7:00000009 r6:000001c2 r5:c0394620 r4:00000000
[<c02cf50c>] (dump_stack+0x0/0x1c) from [<c001c9f0>] (warn_slowpath_common+0x54/0x6c)
[<c001c99c>] (warn_slowpath_common+0x0/0x6c) from [<c001ca2c>] (warn_slowpath_null+0x24/0x2c) r9:412fc098 r8:c0350121 r7:00000000 r6:c03e7128 r5:00000320 r4:00000011
[<c001ca08>] (warn_slowpath_null+0x0/0x2c) from [<c0394620>] (sh73a0_init_irq+0x10c/0x1d0)
[<c0394514>] (sh73a0_init_irq+0x0/0x1d0) from [<c039061c>] (init_IRQ+0x1c/0x24)
[<c0390600>] (init_IRQ+0x0/0x24) from [<c038f828>] (start_kernel+0x198/0x2ac)
[<c038f690>] (start_kernel+0x0/0x2ac) from [<41008040>] (0x41008040) r8:4100406a r7:c03c1b24 r6:c03aaa44 r5:c03be47c r4:10c5387d
---[ end trace 1b75b31a2719ed1c ]---
------------[ cut here ]------------


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