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Odd kernel messages

Odd kernel messages

2007-02-25 - By Victor Orgos

Back

Reply: 1 2 3 4 5

Hi,

I've got a webserver box and I noticed the following on the console the other
day. The box has 512MB of ram and about a 1gb of swap. Nothing has misbehaved
to my knowledge so the messages are odd.

Everything is up2date except the kernel 2.4.21-27.0.4.EL which I am planning to
upgrade soon. Regarding memory, top says:

Mem: 513324k av, 504804k used, 8520k free, 0k shrd, 137276k buff
339404k actv, 73288k in_d, 9584k in_c
Swap: 1020024k av, 1380k used, 1018644k
free 186544k cached

which looks ok to me. Anyway, here are the kernel messages. It repeats over a
number of minutes and it has not happened again since. Also the SysRq function
is disabled.

Feb 21 10:13:21 www1 kernel: Mem-info:
Feb 21 10:13:21 www1 kernel: Zone:DMA freepages: 3128 min: 1055 low: 1087
high: 1119
Feb 21 10:13:21 www1 kernel: Zone:Normal freepages: 27324 min: 510 low: 2237
high: 3228
Feb 21 10:13:21 www1 kernel: Zone:HighMem freepages: 0 min: 0 low:
0 high: 0
Feb 21 10:13:21 www1 kernel: Free pages: 30452 ( 0 HighMem)
Feb 21 10:13:21 www1 kernel: ( Active: 52945/8809, inactive_laundry: 2667,
inactive_clean: 0, free: 30452
)
Feb 21 10:13:21 www1 kernel: aa:9 ac:141 id:0 il:5 ic:0 fr:3128
Feb 21 10:13:21 www1 kernel: aa:29794 ac:23001 id:8809 il:2662 ic:0 fr:27324
Feb 21 10:13:21 www1 kernel: aa:0 ac:0 id:0 il:0 ic:0 fr:0
Feb 21 10:13:21 www1 kernel: 234*4kB 201*8kB 139*16kB 72*32kB 17*64kB 2*128kB 0
*256kB 0*512kB 0*1024kB 0*2048kB 1*4096kB = 12512kB)
Feb 21 10:13:21 www1 kernel: 70*4kB 7*8kB 1460*16kB 2115*32kB 242*64kB 5*128kB
1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 109296kB)
Feb 21 10:13:21 www1 kernel: Swap cache: add 71784, delete 71594, find 26486
/57799, race 0+0
Feb 21 10:13:21 www1 kernel: 31557 pages of slabcache
Feb 21 10:13:21 www1 kernel: 166 pages of kernel stacks
Feb 21 10:13:21 www1 kernel: 553 lowmem pagetables, 0 highmem pagetables
Feb 21 10:13:21 www1 kernel: Free swap: 1018740kB
Feb 21 10:13:22 www1 kernel: 131056 pages of RAM
Feb 21 10:13:22 www1 kernel: 0 pages
of HIGHMEM
Feb 21 10:13:22 www1 kernel: 2725 reserved pages
Feb 21 10:13:22 www1 kernel: 81790 pages shared
Feb 21 10:13:22 www1 kernel: 190 pages swap cached

Any ideas?

Vic.

Send instant messages to your online friends http://au.messenger.yahoo.com
<html><head><style type="text/css"></style></head>
<body><div style="font-family:courier,monaco,monospace,sans-serif;font-size:8pt"
><div style="font-family: courier,monaco,monospace,sans-serif; font-size: 8pt;">
<div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"
>Hi,<br><div style="font-family: courier,monaco,monospace,sans-serif; font-size:
8pt;"><div><br>I've got a webserver box and I noticed the following on the
console the other day. The box has 512MB of ram and about a 1gb of swap.
Nothing has misbehaved to my knowledge so the messages are odd. <br><br
>Everything is up2date except the kernel 2.4.21-27.0.4.EL which I am planning to
upgrade soon. Regarding memory, top says:<br><br>Mem:   513324k av,
  504804k used,    8520k free,     
  0k shrd,  137276k
buff<br>           
         339404k actv,  
73288k in_d,    9584k in_c<br>Swap: 1020024k av,  
  1380k used, 1018644k
free            
      186544k cached<br><br>which looks ok to me.
Anyway, here are the kernel messages. It repeats over a number of minutes and
it has not happened again since. Also the SysRq function is disabled.<br><br>
<br>Feb 21 10:13:21 www1 kernel: Mem-info:<br>Feb 21 10:13:21 www1 kernel: Zone
:DMA freepages:  3128 min:  1055 low:  1087 high:  1119<br
>Feb 21 10:13:21 www1 kernel: Zone:Normal freepages: 27324 min:   510
low:  2237 high:  3228<br>Feb 21 10:13:21 www1 kernel: Zone:HighMem
freepages:     0 min:     0 low: 
    0 high:     0<br>Feb 21 10:13:21 www1
kernel: Free pages:       30452 (  
   0 HighMem)<br>Feb 21 10:13:21 www1 kernel: ( Active: 52945/8809,
inactive_laundry: 2667, inactive_clean: 0, free: 30452
)<br>Feb 21 10:13:21 www1 kernel:   aa:9 ac:141 id:0 il:5 ic:0 fr
:3128<br>Feb 21 10:13:21 www1 kernel:   aa:29794 ac:23001 id:8809 il
:2662 ic:0 fr:27324<br>Feb 21 10:13:21 www1 kernel:   aa:0 ac:0 id:0
il:0 ic:0 fr:0<br>Feb 21 10:13:21 www1 kernel: 234*4kB 201*8kB 139*16kB 72*32kB
17*64kB 2*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 1*4096kB = 12512kB)<br>Feb 21
10:13:21 www1 kernel: 70*4kB 7*8kB 1460*16kB 2115*32kB 242*64kB 5*128kB 1*256kB
1*512kB 1*1024kB 0*2048kB 0*4096kB = 109296kB)<br>Feb 21 10:13:21 www1 kernel:
Swap cache: add 71784, delete 71594, find 26486/57799, race 0+0<br>Feb 21 10:13
:21 www1 kernel: 31557 pages of slabcache<br>Feb 21 10:13:21 www1 kernel: 166
pages of kernel stacks<br>Feb 21 10:13:21 www1 kernel: 553 lowmem pagetables, 0
highmem pagetables<br>Feb 21 10:13:21 www1 kernel: Free swap:   
    1018740kB<br>Feb 21 10:13:22 www1 kernel: 131056 pages of RAM
<br>Feb 21 10:13:22 www1 kernel: 0 pages
of HIGHMEM<br>Feb 21 10:13:22 www1 kernel: 2725 reserved pages<br>Feb 21 10:13
:22 www1 kernel: 81790 pages shared<br>Feb 21 10:13:22 www1 kernel: 190 pages
swap cached<br><br>Any ideas?<br></div></div><br>Vic.<br></div><br></div></div>
<br>Send instant messages to your online friends http://au.messenger.yahoo.com <
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