linux-kernel - Re: Regression: ppc powerstation boot hang caused by slab initialisation code

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Message-Id: <1245717131.4017.19.camel@pasglop>
Date:	Tue, 23 Jun 2009 10:32:11 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: Regression: ppc powerstation boot hang caused by slab
 initialisation code

On Mon, 2009-06-22 at 18:21 -0500, James Bottomley wrote:
> On Tue, 2009-06-23 at 08:51 +1000, Benjamin Herrenschmidt wrote:
> > Ah, I notice you use SLAB, that's the second report of hangs with it due to
> > the changes. You can try SLUB while I'm looking, might help.
> 
> Yes, switching to slub fixes it ... although given that the identified
> problem commit is a slab one, that's understandable ...

Patch on its way (separate thread). BTW. Any reason why you don't have
IRQSTACKs ? We really need to make that not an option....

Cheers,
Ben.


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