Re: Regression: ppc powerstation boot hang caused by slabinitialisation code

From: Benjamin Herrenschmidt
Date: Mon Jun 22 2009 - 19:51:28 EST

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 ...

No, the commit actually moves all SL*B allocators earlier during boot.

Basically, the aim is to remove the need for alloc_bootmem in 90% of
boot code by making SL*B available much earlier.


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