page allocation failure

Sziasztok!

Nos... Nemrég egy apache2-vel foglalkozó témát indítottam, mert azt hittem az okoza a problémát, de nem... Miutánm sikerült megmentenem elszállás előtt a logokat, ezt találtam:

Security Events
=-=-=-=-=-=-=-=
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20
May 20 16:07:20 sofia kernel: swapper: page allocation failure. order:0, mode:0x20

System Events
=-=-=-=-=-=-=
May 20 16:07:20 sofia kernel: printk: 59 messages suppressed.
May 20 16:07:20 sofia kernel: [] __alloc_pages+0x283/0x294
May 20 16:07:20 sofia kernel: [] cache_alloc_refill+0x260/0x450
May 20 16:07:20 sofia kernel: [] ip_local_deliver+0x18b/0x234
May 20 16:07:20 sofia kernel: [] ip_rcv+0x484/0x4bd
May 20 16:07:20 sofia kernel: [] __kmalloc+0x62/0x79
May 20 16:07:20 sofia kernel: [] __alloc_skb+0x49/0xf5
May 20 16:07:20 sofia kernel: [] __netdev_alloc_skb+0x1c/0x35
May 20 16:07:20 sofia kernel: [] sky2_rx_alloc+0x1a/0x9e [sky2]
May 20 16:07:20 sofia kernel: [] sky2_poll+0x48a/0xa9e [sky2]
May 20 16:07:20 sofia kernel: [] tick_program_event+0x33/0x52
May 20 16:07:20 sofia kernel: [] net_rx_action+0x9a/0x1a3
May 20 16:07:20 sofia kernel: [] __do_softirq+0x66/0xd3
May 20 16:07:20 sofia kernel: [] do_softirq+0x45/0x53
May 20 16:07:20 sofia kernel: [] irq_exit+0x38/0x6b
May 20 16:07:20 sofia kernel: [] do_IRQ+0x5a/0x6f
May 20 16:07:20 sofia kernel: [] smp_apic_timer_interrupt+0x71/0x7d
May 20 16:07:20 sofia kernel: [] common_interrupt+0x23/0x28
May 20 16:07:20 sofia kernel: [] release_perfctr_nmi+0x34/0x56
May 20 16:07:20 sofia kernel: [] mwait_idle_with_hints+0x3b/0x3f
May 20 16:07:20 sofia kernel: [] mwait_idle+0x0/0x13
May 20 16:07:20 sofia kernel: [] cpu_idle+0xab/0xcc
May 20 16:07:20 sofia kernel: [] start_kernel+0x339/0x341
May 20 16:07:20 sofia kernel: [] unknown_bootoption+0x0/0x202
May 20 16:07:20 sofia kernel: =======================
May 20 16:07:20 sofia kernel: Mem-info:
May 20 16:07:20 sofia kernel: DMA per-cpu:
May 20 16:07:20 sofia kernel: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
May 20 16:07:20 sofia kernel: CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
May 20 16:07:20 sofia kernel: Normal per-cpu:
May 20 16:07:20 sofia kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 33 Cold: hi: 62, btch: 15 usd: 58
May 20 16:07:20 sofia kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 63 Cold: hi: 62, btch: 15 usd: 59
May 20 16:07:20 sofia kernel: Active:74931 inactive:45778 dirty:5217 writeback:0 unstable:0
May 20 16:07:20 sofia kernel: free:750 slab:4898 mapped:4655 pagetables:453 bounce:0
May 20 16:07:20 sofia kernel: DMA free:1996kB min:88kB low:108kB high:132kB active:9752kB inactive:860kB present:16256kB pages_scanned:40 all_unreclaimable?
+no
May 20 16:07:20 sofia kernel: lowmem_reserve[]: 0 490 490
May 20 16:07:20 sofia kernel: Normal free:1004kB min:2784kB low:3480kB high:4176kB active:289972kB inactive:182252kB present:502092kB pages_scanned:3918
+all_unreclaimable? no
May 20 16:07:20 sofia kernel: lowmem_reserve[]: 0 0 0
May 20 16:07:20 sofia kernel: DMA: 1*4kB 0*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2004kB
May 20 16:07:20 sofia kernel: Normal: 1*4kB 0*8kB 1*16kB 0*32kB 2*64kB 1*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1044kB

És így tovább, és így tovább. Ez simán csak arra utal, hogy kevés a memóriám? Volt olyan is egyébként, hogy az apache2 jelzte, hogy page allocation failure...
Ezt a gépet még legalább 2 hétig üzemben kell tartanom, de most állandó felügyeletet igényel. Lehet valamit tenni ez ellen? Tegnap a fórumokat keresgetve annyit találtam, hogy a /proc/sys/vm/min_free_kbytes értékét 16384-re állítva javulhat a helyzet.