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Date:	Tue, 31 Jul 2007 18:04:07 -0700
From:	Andrew Morton <>
To:	Bongani Hlope <>
Subject: Re: [OOPS] 2.6.23-rc1 Seems to be network related

On Wed, 1 Aug 2007 02:57:48 +0200 Bongani Hlope <> wrote:

> I'm not sure if the first email went through, resending without .config 
> attachment.

It did come through, and I replied ;)

The below post-2.6.23-rc1 patch should fix it.

commit b8c1c5da1520977cb55a358f20fc09567d40cad9
Author: Andrew Morton <>
Date:   Tue Jul 24 12:02:40 2007 -0700

    slab: correctly handle __GFP_ZERO
    Use the correct local variable when calling into the page allocator.  Local
    `flags' can have __GFP_ZERO set, which causes us to pass __GFP_ZERO into the
    page allocator, possibly from illegal contexts.  The page allocator will later
    do prep_zero_page()->kmap_atomic(..., KM_USER0) from irq contexts and will
    then go BUG.
    Cc: Mike Galbraith <>
    Acked-by: Christoph Lameter <>
    Signed-off-by: Andrew Morton <>
    Signed-off-by: Linus Torvalds <>

diff --git a/mm/slab.c b/mm/slab.c
index bde271c..a684778 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2776,7 +2776,7 @@ static int cache_grow(struct kmem_cache 
 	 * 'nodeid'.
 	if (!objp)
-		objp = kmem_getpages(cachep, flags, nodeid);
+		objp = kmem_getpages(cachep, local_flags, nodeid);
 	if (!objp)
 		goto failed;

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