The patch titled
mm: print out the zonelists on request for manual verification
has been added to the -mm tree. Its filename is
mm-print-out-the-zonelists-on-request-for-manual-verification.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mm: print out the zonelists on request for manual verification
From: Mel Gorman <mel@xxxxxxxxx>
This patch prints out the zonelists during boot for manual verification by the
user if the mminit_loglevel is MMINIT_VERIFY or higher.
Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
Cc: Christoph Lameter <clameter@xxxxxxx>
Cc: Andy Whitcroft <apw@xxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/internal.h | 5 +++++
mm/mm_init.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
mm/page_alloc.c | 1 +
3 files changed, 51 insertions(+)
diff -puN mm/internal.h~mm-print-out-the-zonelists-on-request-for-manual-verification mm/internal.h
--- a/mm/internal.h~mm-print-out-the-zonelists-on-request-for-manual-verification
+++ a/mm/internal.h
@@ -81,6 +81,7 @@ do { \
extern void mminit_verify_pageflags_layout(void);
extern void mminit_verify_page_links(struct page *page,
enum zone_type zone, unsigned long nid, unsigned long pfn);
+extern void mminit_verify_zonelist(void);
#else
@@ -97,6 +98,10 @@ static inline void mminit_verify_page_li
enum zone_type zone, unsigned long nid, unsigned long pfn)
{
}
+
+static inline void mminit_verify_zonelist(void)
+{
+}
#endif /* CONFIG_DEBUG_MEMORY_INIT */
/* mminit_validate_memmodel_limits is independent of CONFIG_DEBUG_MEMORY_INIT */
diff -puN mm/mm_init.c~mm-print-out-the-zonelists-on-request-for-manual-verification mm/mm_init.c
--- a/mm/mm_init.c~mm-print-out-the-zonelists-on-request-for-manual-verification
+++ a/mm/mm_init.c
@@ -11,6 +11,51 @@
int __meminitdata mminit_loglevel;
+/* The zonelists are simply reported, validation is manual. */
+void mminit_verify_zonelist(void)
+{
+ int nid;
+
+ if (mminit_loglevel < MMINIT_VERIFY)
+ return;
+
+ for_each_online_node(nid) {
+ pg_data_t *pgdat = NODE_DATA(nid);
+ struct zone *zone;
+ struct zoneref *z;
+ struct zonelist *zonelist;
+ int i, listid, zoneid;
+
+ BUG_ON(MAX_ZONELISTS > 2);
+ for (i = 0; i < MAX_ZONELISTS * MAX_NR_ZONES; i++) {
+
+ /* Identify the zone and nodelist */
+ zoneid = i % MAX_NR_ZONES;
+ listid = i / MAX_NR_ZONES;
+ zonelist = &pgdat->node_zonelists[listid];
+ zone = &pgdat->node_zones[zoneid];
+ if (!populated_zone(zone))
+ continue;
+
+ /* Print information about the zonelist */
+ printk(KERN_DEBUG "mminit::zonelist %s %d:%s = ",
+ listid > 0 ? "thisnode" : "general", nid,
+ zone->name);
+
+ /* Iterate the zonelist */
+ for_each_zone_zonelist(zone, z, zonelist, zoneid) {
+#ifdef CONFIG_NUMA
+ printk(KERN_CONT "%d:%s ",
+ zone->node, zone->name);
+#else
+ printk(KERN_CONT "0:%s ", zone->name);
+#endif /* CONFIG_NUMA */
+ }
+ printk(KERN_CONT "\n");
+ }
+ }
+}
+
void __init mminit_verify_pageflags_layout(void)
{
int shift, width;
diff -puN mm/page_alloc.c~mm-print-out-the-zonelists-on-request-for-manual-verification mm/page_alloc.c
--- a/mm/page_alloc.c~mm-print-out-the-zonelists-on-request-for-manual-verification
+++ a/mm/page_alloc.c
@@ -2372,6 +2372,7 @@ void build_all_zonelists(void)
if (system_state == SYSTEM_BOOTING) {
__build_all_zonelists(NULL);
+ mminit_verify_zonelist();
cpuset_init_current_mems_allowed();
} else {
/* we have to stop all cpus to guarantee there is no user
_
Patches currently in -mm which might be from mel@xxxxxxxxx are
origin.patch
mm-fix-usemap-initialization.patch
mm-fix-misleading-__gfp_repeat-related-comments.patch
page-allcoator-smarter-retry-of-costly-order-allocations.patch
page-allocator-explicitly-retry-hugepage-allocations.patch
memcgroup-move-memory-controller-allocations-to-their-own-slabs.patch
proc-pagetypeinfo-fix-output-for-memoryless-nodes.patch
mm-add-a-basic-debugging-framework-for-memory-initialisation.patch
mm-verify-the-page-links-and-memory-model.patch
mm-make-defensive-checks-around-pfn-values-registered-for-memory-usage.patch
mm-print-out-the-zonelists-on-request-for-manual-verification.patch
page-owner-tracking-leak-detector.patch
add-debugging-aid-for-memory-initialisation-problems.patch
--
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