[PATCH 0/2] Fix two boot problems related to ZONE_MOVABLE sizing

From: Mel Gorman
Date: Tue Apr 24 2007 - 14:00:52 EST


Following this mail are two fixes related to a boot problem in relation
to ZONE_MOVABLE. These are fixes for memory partitioning where kernelcore=
is used and is unrelated to grouping pages by mobility.

The first patch moves kernelcore= parsing to common code. This avoids an
infinite loop that can occur when booting on IA64. As a side-effect,
it extends support of kernelcore= to all architectures that use
architecture-independent zone-sizing.

The second patch aligns ZONE_MOVABLE correctly. The bootmem allocator makes
assumptions on the alignment of zones. This can cause pages to be placed
on the freelists for the wrong zone resulting in a BUG() later. Aligning
ZONE_MOVABLE avoids the problem.

They have been successfully boot-tested with and without kernelcore=
specified on x86_64, ppc64 and IA64 (where the bug was first triggered).
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/