Re: [PATCH] x86: bau_msg_head points to a_queue_first inuv_table_bases_finish()

From: Ingo Molnar
Date: Sun Jan 17 2010 - 02:16:52 EST



* Roel Kluin <roel.kluin@xxxxxxxxx> wrote:

> bau_msg_head should point to bau_msg_head
>
> Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
> ---
> Is this correct?
>
> diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
> index 364d015..3d66331 100644
> --- a/arch/x86/kernel/tlb_uv.c
> +++ b/arch/x86/kernel/tlb_uv.c
> @@ -691,7 +691,7 @@ uv_table_bases_finish(int blade,
> continue;
>
> bcp = (struct bau_control *)&per_cpu(bau_control, cpu);
> - bcp->bau_msg_head = bau_tablesp->va_queue_first;
> + bcp->bau_msg_head = bau_tablesp->bau_msg_head;
> bcp->va_queue_first = bau_tablesp->va_queue_first;
> bcp->va_queue_last = bau_tablesp->va_queue_last;
> bcp->msg_statuses = bau_tablesp->msg_statuses;

Seems like you either caught a real bug - or that there's a somewhat quirky
initialization sequence here which should be commented upon in the source.

Cliff, Robin, what's your take on Roel's patch?

Thanks,

Ingo
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