linux-kernel - [PATCH 001/001] mm: Use KERN_INFO log level for memory configuration boot messages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Mon, 29 Sep 2014 11:28:59 -0600
From:	Orion Poplawski <orion@...a.nwra.com>
To:	linux-mm@...ck.org
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH 001/001] mm: Use KERN_INFO log level for memory configuration
 boot messages

From: Orion Poplawski <orion@...a.nwra.com>

While trying look at just "warning" or stronger messages with "journalctl --priority 0..4" I keep
seeing:

Sep 29 07:10:29 barry kernel: Zone ranges:
Sep 29 07:10:29 barry kernel:   DMA      [mem 0x00001000-0x00ffffff]
Sep 29 07:10:29 barry kernel:   DMA32    [mem 0x01000000-0xffffffff]
Sep 29 07:10:29 barry kernel:   Normal   [mem 0x100000000-0x61fffffff]
Sep 29 07:10:29 barry kernel: Movable zone start for each node
Sep 29 07:10:29 barry kernel: Early memory node ranges
Sep 29 07:10:29 barry kernel:   node   0: [mem 0x00001000-0x0009dfff]
Sep 29 07:10:29 barry kernel:   node   0: [mem 0x00100000-0xdfdf8fff]
Sep 29 07:10:29 barry kernel:   node   0: [mem 0x100000000-0x61fffffff]
Sep 29 07:10:29 barry kernel: Built 1 zonelists in Zone order, mobility grouping on.  Total pages
Sep 29 07:10:29 barry kernel: Policy zone: Normal
Sep 29 07:10:29 barry kernel: Memory: 24673284K/25163352K available (7245K kernel code, 1127K rwd

which strike me as purely informational.  This patch sets the level of these messages accordingly.
This is to current git master.

Signed-off-by: Orion Poplawski <orion@...a.nwra.com>

---
 mm/page_alloc.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 18cee0d..b8205e8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3899,14 +3899,14 @@ void __ref build_all_zonelists(pg_data_t *pgdat, struct zone *zone)
        else
                page_group_by_mobility_disabled = 0;

-       printk("Built %i zonelists in %s order, mobility grouping %s.  "
+       printk(KERN_INFO "Built %i zonelists in %s order, mobility grouping %s.  "
                "Total pages: %ld\n",
                        nr_online_nodes,
                        zonelist_order_name[current_zonelist_order],
                        page_group_by_mobility_disabled ? "off" : "on",
                        vm_total_pages);
 #ifdef CONFIG_NUMA
-       printk("Policy zone: %s\n", zone_names[policy_zone]);
+       printk(KERN_INFO "Policy zone: %s\n", zone_names[policy_zone]);
 #endif
 }

@@ -5338,7 +5338,7 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn)
        find_zone_movable_pfns_for_nodes();

        /* Print out the zone ranges */
-       printk("Zone ranges:\n");
+       printk(KERN_INFO "Zone ranges:\n");
        for (i = 0; i < MAX_NR_ZONES; i++) {
                if (i == ZONE_MOVABLE)
                        continue;
@@ -5354,17 +5354,17 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn)
        }

        /* Print out the PFNs ZONE_MOVABLE begins at in each node */
-       printk("Movable zone start for each node\n");
+       printk(KERN_INFO "Movable zone start for each node\n");
        for (i = 0; i < MAX_NUMNODES; i++) {
                if (zone_movable_pfn[i])
-                       printk("  Node %d: %#010lx\n", i,
+                       printk(KERN_INFO "  Node %d: %#010lx\n", i,
                               zone_movable_pfn[i] << PAGE_SHIFT);
        }

        /* Print out the early node map */
-       printk("Early memory node ranges\n");
+       printk(KERN_INFO "Early memory node ranges\n");
        for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid)
-               printk("  node %3d: [mem %#010lx-%#010lx]\n", nid,
+               printk(KERN_INFO "  node %3d: [mem %#010lx-%#010lx]\n", nid,
                       start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);

        /* Initialise every node */
@@ -5500,7 +5500,7 @@ void __init mem_init_print_info(const char *str)

 #undef adj_init_size

-       printk("Memory: %luK/%luK available "
+       printk(KERN_INFO "Memory: %luK/%luK available "
               "(%luK kernel code, %luK rwdata, %luK rodata, "
               "%luK init, %luK bss, %luK reserved"
 #ifdef CONFIG_HIGHMEM
--
1.9.3


-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA, Boulder/CoRA Office             FAX: 303-415-9702
3380 Mitchell Lane                       orion@...a.com
Boulder, CO 80301                   http://www.nwra.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/