linux-kernel - Re: [PATCH] sparseirq: fix hang with !SPARSE

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Message-ID: <20081227084140.GA10687@elte.hu>
Date:	Sat, 27 Dec 2008 09:41:40 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Suresh Siddha <suresh.b.siddha@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	venkatesh.pallipadi@...el.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] sparseirq: fix hang with !SPARSE_IRQ


* Yinghai Lu <yinghai@...nel.org> wrote:

> Impact: fix hang
> 
> Suresh report his two sockets system only works with SPARSE_IRQ enable
> it turns out we miss the setting desc->irq
> 
> so provide early_irq_init() even !SPARSE_IRQ to set desc->irq
> 
> Reported by: "Siddha, Suresh B" <suresh.b.siddha@...el.com>
> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
> 
> ---
>  init/main.c         |    6 ------
>  kernel/irq/handle.c |   15 +++++++++++++++
>  2 files changed, 15 insertions(+), 6 deletions(-)

applied to tip/irq/sparseirq - thanks Yinghai. This fixed a testsystem of 
mine as well that showed weird hangs with !sparseirq.

	Ingo
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