From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Whitcroft Subject: [PATCH 0/2] panics booting NUMA SPARSEMEM on x86_32 NUMA Message-ID: Date: Tue, 20 May 2008 11:00:57 +0100 Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Molnar Cc: Andy Whitcroft , Mel Gorman , Thomas Gleixner , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: We have been seeing panics booting NUMA SPARSEMEM kernels on x86_32 hardware, while trying to allocate node local memory in early boot. These are caused by a miss-allocation of the node pgdat structures when numa remap is disabled. Following this email are two patches, the first reenables numa remap for SPARSEMEM as the underlying bug has now been fixed. The second hardens the pgdat allocation in the face of there being no numa remap for a particular node (which may still occur). -apw -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org