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| author | Michal Hocko <mhocko@suse.com> | 2019-06-20 13:45:59 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2019-06-24 08:08:21 +1000 |
| commit | 430dc44c6f12c2cac864a5d3130c9eb36689f2dd (patch) | |
| tree | 0dccc18f522579a7f455b570204d2bd52ee90cd2 /mm | |
| parent | 4121e9d11fdb17e9bb85af96cbf4fe5993a5a188 (diff) | |
| download | linux-next-430dc44c6f12c2cac864a5d3130c9eb36689f2dd.tar.gz | |
mm: be more verbose about zonelist initialization
We have seen several bugs where zonelists have not been initialized
properly and it is not really straightforward to track those bugs down.
One way to help a bit at least is to dump zonelists of each node when they
are (re)initialized.
Link: http://lkml.kernel.org/r/20190213094315.3504-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Dave Hansen <dave.hansen@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pingfan Liu <kernelfans@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 86fa853ff137..54dacf35d200 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5602,6 +5602,8 @@ static void build_zonelists(pg_data_t *pgdat) int node, load, nr_nodes = 0; nodemask_t used_mask; int local_node, prev_node; + struct zone *zone; + struct zoneref *z; /* NUMA-aware ordering of nodes */ local_node = pgdat->node_id; @@ -5627,6 +5629,11 @@ static void build_zonelists(pg_data_t *pgdat) build_zonelists_in_node_order(pgdat, node_order, nr_nodes); build_thisnode_zonelists(pgdat); + + pr_info("node[%d] zonelist: ", pgdat->node_id); + for_each_zone_zonelist(zone, z, &pgdat->node_zonelists[ZONELIST_FALLBACK], MAX_NR_ZONES-1) + pr_cont("%d:%s ", zone_to_nid(zone), zone->name); + pr_cont("\n"); } #ifdef CONFIG_HAVE_MEMORYLESS_NODES |