linux-kernel - Re: 2.6.19-rc1 genirq causes either boot hang or "do

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Date:	Sat, 7 Oct 2006 19:59:26 +0200
From:	Muli Ben-Yehuda <muli@...ibm.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Rajesh Shah <rajesh.shah@...el.com>, Andi Kleen <ak@....de>,
	"Protasevich, Natalie" <Natalie.Protasevich@...SYS.com>,
	"Luck, Tony" <tony.luck@...el.com>, Andrew Morton <akpm@...l.org>,
	Linus Torvalds <torvalds@...l.org>,
	Linux-Kernel <linux-kernel@...r.kernel.org>,
	Badari Pulavarty <pbadari@...il.com>
Subject: Re: 2.6.19-rc1 genirq causes either boot hang or "do_IRQ: cannot handle IRQ -1"

On Sat, Oct 07, 2006 at 10:52:24AM -0600, Eric W. Biederman wrote:

> Can you try CONFIG_CPU_HOTPLUG?  That will force genapic to be set
> to genapic_physflat instead of genapic_flat.

Yep, it boots with CONFIG_CPU_HOTPLUG!

> If genapic_physflat works we will have to decide what to do about
> genapic_flat.

I'm happy to test any follow-on patches to make it work without
CONFIG_CPU_HOTPLUG.

Cheers,
Muli
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