On 07/18/2012 01:36 PM, Steven J. Yellin wrote:
The fact that both free and total swap are said to be "0kB" seems so
unreasonable that it may mean I just don't understand the output. Another
possibility is that there's a hardware error on the drive containing the swap
data, in which case perhaps the computer would stay up after the error if
there were also a swap area file on another drive, and wouldn't crash at all
if only swap area on another drive were used.
It seems like everything about the memory config goes screwy. Here's a info
dump from normal operation:
SysRq : Show Memory
Mem-Info:
Node 0 DMA per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
CPU 1: hi: 0, btch: 1 usd: 0
CPU 2: hi: 0, btch: 1 usd: 0
CPU 3: hi: 0, btch: 1 usd: 0
CPU 4: hi: 0, btch: 1 usd: 0
CPU 5: hi: 0, btch: 1 usd: 0
CPU 6: hi: 0, btch: 1 usd: 0
CPU 7: hi: 0, btch: 1 usd: 0
CPU 8: hi: 0, btch: 1 usd: 0
CPU 9: hi: 0, btch: 1 usd: 0
CPU 10: hi: 0, btch: 1 usd: 0
CPU 11: hi: 0, btch: 1 usd: 0
CPU 12: hi: 0, btch: 1 usd: 0
CPU 13: hi: 0, btch: 1 usd: 0
CPU 14: hi: 0, btch: 1 usd: 0
CPU 15: hi: 0, btch: 1 usd: 0
Node 0 DMA32 per-cpu:
CPU 0: hi: 186, btch: 31 usd: 180
CPU 1: hi: 186, btch: 31 usd: 158
CPU 2: hi: 186, btch: 31 usd: 0
CPU 3: hi: 186, btch: 31 usd: 0
CPU 4: hi: 186, btch: 31 usd: 0
CPU 5: hi: 186, btch: 31 usd: 0
CPU 6: hi: 186, btch: 31 usd: 0
CPU 7: hi: 186, btch: 31 usd: 0
CPU 8: hi: 186, btch: 31 usd: 0
CPU 9: hi: 186, btch: 31 usd: 19
CPU 10: hi: 186, btch: 31 usd: 30
CPU 11: hi: 186, btch: 31 usd: 0
CPU 12: hi: 186, btch: 31 usd: 0
CPU 13: hi: 186, btch: 31 usd: 0
CPU 14: hi: 186, btch: 31 usd: 0
CPU 15: hi: 186, btch: 31 usd: 0
Node 0 Normal per-cpu:
CPU 0: hi: 186, btch: 31 usd: 144
CPU 1: hi: 186, btch: 31 usd: 124
CPU 2: hi: 186, btch: 31 usd: 182
CPU 3: hi: 186, btch: 31 usd: 162
CPU 4: hi: 186, btch: 31 usd: 182
CPU 5: hi: 186, btch: 31 usd: 162
CPU 6: hi: 186, btch: 31 usd: 0
CPU 7: hi: 186, btch: 31 usd: 0
CPU 8: hi: 186, btch: 31 usd: 138
CPU 9: hi: 186, btch: 31 usd: 119
CPU 10: hi: 186, btch: 31 usd: 88
CPU 11: hi: 186, btch: 31 usd: 75
CPU 12: hi: 186, btch: 31 usd: 0
CPU 13: hi: 186, btch: 31 usd: 183
CPU 14: hi: 186, btch: 31 usd: 179
CPU 15: hi: 186, btch: 31 usd: 159
Node 1 Normal per-cpu:
CPU 0: hi: 186, btch: 31 usd: 184
CPU 1: hi: 186, btch: 31 usd: 168
CPU 2: hi: 186, btch: 31 usd: 164
CPU 3: hi: 186, btch: 31 usd: 0
CPU 4: hi: 186, btch: 31 usd: 41
CPU 5: hi: 186, btch: 31 usd: 172
CPU 6: hi: 186, btch: 31 usd: 126
CPU 7: hi: 186, btch: 31 usd: 145
CPU 8: hi: 186, btch: 31 usd: 63
CPU 9: hi: 186, btch: 31 usd: 158
CPU 10: hi: 186, btch: 31 usd: 162
CPU 11: hi: 186, btch: 31 usd: 165
CPU 12: hi: 186, btch: 31 usd: 48
CPU 13: hi: 186, btch: 31 usd: 64
CPU 14: hi: 186, btch: 31 usd: 66
CPU 15: hi: 186, btch: 31 usd: 165
active_anon:1356095 inactive_anon:839 isolated_anon:0
active_file:93487 inactive_file:384620 isolated_file:0
unevictable:0 dirty:65 writeback:0 unstable:0
free:10288450 slab_reclaimable:40068 slab_unreclaimable:34613
mapped:9236 shmem:474 pagetables:6530 bounce:0
Node 0 DMA free:15396kB min:36kB low:44kB high:52kB active_anon:0kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:14984kB 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
lowmem_reserve[]: 0 2991 24201 24201
Node 0 DMA32 free:2563944kB min:8092kB low:10112kB high:12136kB
active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3063392kB
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
lowmem_reserve[]: 0 0 21210 21210
Node 0 Normal free:16895636kB min:57372kB low:71712kB high:86056kB
active_anon:2986668kB inactive_anon:92kB active_file:278460kB
inactive_file:1316128kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
present:21719040kB mlocked:0kB dirty:120kB writeback:0kB mapped:18948kB
shmem:360kB slab_reclaimable:123620kB slab_unreclaimable:95556kB
kernel_stack:7024kB pagetables:12872kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
Node 1 Normal free:21678824kB min:65568kB low:81960kB high:98352kB
active_anon:2437712kB inactive_anon:3264kB active_file:95488kB
inactive_file:222352kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
present:24821760kB mlocked:0kB dirty:140kB writeback:0kB mapped:17996kB
shmem:1536kB slab_reclaimable:36652kB slab_unreclaimable:42896kB
kernel_stack:696kB pagetables:13248kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB 2*8kB 1*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB
1*2048kB 3*4096kB = 15396kB
Node 0 DMA32: 6*4kB 12*8kB 3*16kB 6*32kB 8*64kB 16*128kB 6*256kB 7*512kB
8*1024kB 6*2048kB 619*4096kB = 2563944kB
Node 0 Normal: 1832*4kB 1354*8kB 846*16kB 583*32kB 272*64kB 65*128kB 70*256kB
53*512kB 37*1024kB 2*2048kB 4085*4096kB = 16895280kB
Node 1 Normal: 509*4kB 2146*8kB 1166*16kB 831*32kB 346*64kB 197*128kB
200*256kB 202*512kB 192*1024kB 131*2048kB 5114*4096kB = 21678276kB
478555 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 8388600kB
Total swap = 8388600kB
12582896 pages RAM
227482 pages reserved
450152 pages shared
1712399 pages non-shared
and here's the initial oom message again:
Mem-Info:
Node 0 DMA per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
Node 0 DMA32 per-cpu:
CPU 0: hi: 42, btch: 7 usd: 23
active_anon:49 inactive_anon:97 isolated_anon:0
active_file:0 inactive_file:0 isolated_file:0
unevictable:3846 dirty:0 writeback:0 unstable:0
free:412 slab_reclaimable:1194 slab_unreclaimable:5681
mapped:356 shmem:0 pagetables:31 bounce:0
Node 0 DMA free:224kB min:0kB low:0kB high:0kB active_anon:0kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:328kB 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? yes
lowmem_reserve[]: 0 125 125 125
Node 0 DMA32 free:1424kB min:1428kB low:1784kB high:2140kB active_anon:196kB
inactive_anon:388kB active_file:0kB inactive_file:0kB unevictable:15384kB
isolated(anon):0kB isolated(file):0kB present:128256kB mlocked:0kB dirty:0kB
writeback:0kB mapped:1424kB shmem:0kB slab_reclaimable:4776kB
slab_unreclaimable:22724kB kernel_stack:600kB pagetables:124kB unstable:0kB
bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 0*4kB 2*8kB 1*16kB 2*32kB 2*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
0*2048kB 0*4096kB = 224kB
Node 0 DMA32: 0*4kB 2*8kB 2*16kB 1*32kB 1*64kB 0*128kB 1*256kB 0*512kB
1*1024kB 0*2048kB 0*4096kB = 1424kB45035
3846 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
45035 pages RAM
16585 pages reserved
359 pages shared
23771 pages non-shared
Only 1 cpu listed, memory numbers are incredibly small (180MB of RAM!?), no
Normal nodes listed, etc.
--
Orion Poplawski
Technical Manager 303-415-9701 x222
NWRA, Boulder Office FAX: 303-415-9702
3380 Mitchell Lane [email protected]
Boulder, CO 80301 http://www.nwra.com
