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Date: Thu, 20 Sep 2001 00:45:43 +0200
From: Andrea Arcangeli <andrea@suse.de>
To: Shane Wegner <shane@cm.nu>
Cc: Martin MOKREJ? <mmokrejs@natur.cuni.cz>, linux-kernel@vger.kernel.org
Subject: Re: __alloc_pages: 0-order allocation failed still in -pre12
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In-Reply-To: <20010919153441.A30940@cm.nu>; from shane@cm.nu on Wed, Sep 19, 2001 at 03:34:41PM -0700
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On Wed, Sep 19, 2001 at 03:34:41PM -0700, Shane Wegner wrote:
> Hi,
> 
> I'm getting the same thing here.  At least it looks similar
> though I'm not sure what's causing it.  Dual PIII 850, 1gb
							 ^^^ perfect
> ram, 300mb swap.
> 
> __alloc_pages: 0-order allocation failed (gfp=0x20/0) from
> c012e052
> __alloc_pages: 0-order allocation failed (gfp=0x20/0) from
> c012e052
> __alloc_pages: 0-order allocation failed (gfp=0x20/0) from
> c012e052

yes, please try this fix and let me know if it helps:

--- 2.4.10pre11aa1/mm/page_alloc.c.~1~	Tue Sep 18 15:39:50 2001
+++ 2.4.10pre11aa1/mm/page_alloc.c	Thu Sep 20 00:36:11 2001
@@ -369,6 +369,7 @@
 		return NULL;
 	}
 
+ rebalance:
 	page = balance_classzone(classzone, gfp_mask, order, &freed);
 	if (page)
 		return page;
@@ -380,10 +381,13 @@
 			if (!z)
 				break;
 
-			page = rmqueue(z, order);
-			if (page)
-				return page;
+			if (zone_free_pages(z, order) > z->pages_min) {
+				page = rmqueue(z, order);
+				if (page)
+					return page;
+			}
 		}
+		goto rebalance;
 	} else {
 		/* 
 		 * Check that no other task is been killed meanwhile,


Andrea