Messages in this thread | | | Date | Tue, 1 Sep 2009 18:00:32 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | [mmotm][BUG] free is bigger than presnet Re: mmotm 2009-08-27-16-51 uploaded |
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On Thu, 27 Aug 2009 16:55:42 -0700 akpm@linux-foundation.org wrote:
> The mm-of-the-moment snapshot 2009-08-27-16-51 has been uploaded to > > http://userweb.kernel.org/~akpm/mmotm/ > > and will soon be available at > > git://git.zen-sources.org/zen/mmotm.git > > It contains the following patches against 2.6.31-rc7: >
I'm not digggin so much but /proc/meminfo corrupted.
[kamezawa@bluextal cgroup]$ cat /proc/meminfo MemTotal: 24421124 kB MemFree: 38314388 kB
Wow ;) On x86-64 8cpu box + 24G memory. (config is NUMA but the system itself is not NUMA.)
At boot time and for a while, It seems to be no trouble.
I used this.
== malloc.c
#include <stdio.h>
#define MSIZE (1024 * 1024 * 8)
int main(int argc, char *argv[]) { char **c; long size; int array_size, i;
size = atoi(argv[1]); size *= 1024 * 1024;
array_size = size/MSIZE + 1; c= malloc(sizeof(void *) * array_size);
for (i = 0; i < array_size; i++) { c[i] = malloc(MSIZE); memset(c[i], 0, MSIZE); } while (1) { for (i = 0; i < array_size; i++) { memset(c[i], 0, MSIZE); sleep(2); } sleep(10); } return; } == # malloc 23000 # malloc 1000 and run hackbench 20.
OOM Kill message says free exceeds present ;( == Sep 1 18:01:17 localhost kernel: [ 3012.503440] active_anon:5461242 inactive_anon:473226 isolated_anon:384 Sep 1 18:01:17 localhost kernel: [ 3012.503440] active_file:133 inactive_file:664 isolated_file:0 Sep 1 18:01:17 localhost kernel: [ 3012.503440] unevictable:0 dirty:0 writeback:73 unstable:0 buffer:283 Sep 1 18:01:17 localhost kernel: [ 3012.503440] free:9454041 slab_reclaimable:5144 slab_unreclaimable:10564 Sep 1 18:01:17 localhost kernel: [ 3012.503440] mapped:7019 shmem:0 pagetables:22572 bounce:0 Sep 1 18:01:17 localhost kernel: [ 3012.503440] Node 0 DMA free:15788kB min:12kB low:12kB high:16kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15016kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no Sep 1 18:01:17 localhost kernel: [ 3012.503440] lowmem_reserve[]: 0 2951 23909 23909 Sep 1 18:01:17 localhost kernel: [ 3012.503440] Node 0 DMA32 free:11729908kB min:2440kB low:3048kB high:3660kB active_anon:1866292kB inactive_anon:466548kB active_file:140kB inactive_file:1588kB unevictable:0kB isolated(anon):256kB isolated(file):0kB present:3022624kB mlocked:0kB dirty:0kB writeback:292kB mapped:8kB shmem:0kB slab_reclaimable:2724kB slab_unreclaimable:10124kB kernel_stack:4504kB pagetables:21536kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:227 all_unreclaimable? no Sep 1 18:01:17 localhost kernel: [ 3012.503440] lowmem_reserve[]: 0 0 20958 20958 Sep 1 18:01:17 localhost kernel: [ 3012.503440] Node 0 Normal free:26071392kB min:17340kB low:21672kB high:26008kB active_anon:19978676kB inactive_anon:1426356kB active_file:392kB inactive_file:1068kB unevictable:0kB isolated(anon):1280kB isolated(file):0kB present:21460992kB mlocked:0kB dirty:0kB writeback:0kB mapped:28068kB shmem:0kB slab_reclaimable:17852kB slab_unreclaimable:32132kB kernel_stack:3672kB pagetables:68752kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:3840 all_unreclaimable? no
==
I'll dig more but does anyone have hints ?
Thanks, -Kame
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