Re: [PATCH] Fix crash on boot in kmalloc_node IDE changes

[Christoph Lameter <christoph@lameter.com>]

On Wed, 6 Jul 2005, Andi Kleen wrote:

> On Wed, Jul 06, 2005 at 09:34:28AM -0700, Christoph Lameter wrote:
> > On Wed, 6 Jul 2005, Andi Kleen wrote:
> > 
> > > -	q = blk_init_queue_node(do_ide_request, &ide_lock,
> > > -				pcibus_to_node(drive->hwif->pci_dev->bus));
> > > +	int node = 0; /* Should be -1 */
> > 
> > Why is this not -1?
> 
> Because there is no code in rc3 that handles -1 in kmalloc_node.
> 
> If you add a patch that handles it then feel free to change.
> But fixing the bootup has the highest priority.
> 
> > 
> > > +		int node = 0; 
> > > +		if (hwif->drives[0].hwif) { 
> > 
> > Also needs to be -1.
> 
> Then it would crash again.

The patch follows. Maybe add that and include a signoff by me?:

Index: linux-2.6.git/mm/slab.c
===================================================================
--- linux-2.6.git.orig/mm/slab.c	2005-07-05 17:03:30.000000000 -0700
+++ linux-2.6.git/mm/slab.c	2005-07-05 18:25:20.000000000 -0700
@@ -2372,6 +2372,9 @@
 	struct slab *slabp;
 	kmem_bufctl_t next;
 
+	if (nodeid == -1)
+		return kmem_cache_alloc_node(cachep, flags);
+
 	for (loop = 0;;loop++) {
 		struct list_head *q;