Re: 2.6.22-rc2 amd64 slab allocator bug reported at boot time

From: Andi Kleen
Date: Fri May 25 2007 - 06:34:33 EST


Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx> writes:

> Andrew Paprocki wrote:
> ...
> > BUG: at /usr/src/linux-2.6.22-rc2/mm/slab.c:777 __find_general_cachep()
> >
> > Call Trace:
> > [<ffffffff802743dc>] __kmalloc+0x3e/0xbe
> > [<ffffffff8021d65f>] cache_k8_northbridges+0x7f/0xf0
> > [<ffffffff8052bb53>] gart_iommu_init+0x13/0x4f8
> > [<ffffffff802d15e1>] kobject_shadow_add+0xef/0x1a2
> > [<ffffffff802d13fb>] kobject_get+0x12/0x17
> > [<ffffffff8033b2a4>] class_register+0x10a/0x13d
> > [<ffffffff80527964>] pci_iommu_init+0x9/0x12
> ...
>
> This is a known "zero allocation" problem, patch available.
> http://kernelnewbies.org/known_regressions#line-249

It should be already fixed in mainline

-Andi
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