Odd kernel messages

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.





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