리눅스 서버 오류관련에서 문의드립니다

CentOS 5.5 사용중이며 APM 만 동작중이고 모든 프로그램은 YUM으로 설치했습니다

Dec 9 23:09:04 localhost kernel: BUG: soft lockup - CPU#0 stuck for 10s! [swapper:0]
Dec 9 23:09:04 localhost kernel:
Dec 9 23:09:04 localhost kernel: Pid: 0, comm: swapper
Dec 9 23:09:04 localhost kernel: EIP: 0060:[<c044f1dd>] CPU: 0
Dec 9 23:09:04 localhost kernel: EIP is at handle_IRQ_event+0x39/0x8c
Dec 9 23:09:04 localhost kernel: EFLAGS: 00000246 Not tainted (2.6.18-194.26.1.el5 #1)
Dec 9 23:09:04 localhost kernel: EAX: 0000000c EBX: c06fb480 ECX: f7cca380 EDX: c0768f9c
Dec 9 23:09:04 localhost kernel: ESI: f7cca380 EDI: 0000000c EBP: 00000000 DS: 007b ES: 007b
Dec 9 23:09:04 localhost kernel: CR0: 8005003b CR2: 09a6a000 CR3: 37cf0000 CR4: 000006d0
Dec 9 23:09:04 localhost kernel: [<c044f2b4>] __do_IRQ+0x84/0xd6
Dec 9 23:09:04 localhost kernel: [<c04074c9>] do_IRQ+0xb0/0xc3
Dec 9 23:09:04 localhost kernel: [<c0405946>] common_interrupt+0x1a/0x20
Dec 9 23:09:04 localhost kernel: [<c044f1dd>] handle_IRQ_event+0x39/0x8c
Dec 9 23:09:04 localhost kernel: [<c044f2b4>] __do_IRQ+0x84/0xd6
Dec 9 23:09:04 localhost kernel: [<c044f230>] __do_IRQ+0x0/0xd6
Dec 9 23:09:04 localhost kernel: [<c04074b2>] do_IRQ+0x99/0xc3
Dec 9 23:09:04 localhost kernel: [<c0405946>] common_interrupt+0x1a/0x20
Dec 9 23:09:04 localhost kernel: [<c042a3c7>] __do_softirq+0x57/0x114
Dec 9 23:09:04 localhost kernel: [<c04073cf>] do_softirq+0x52/0x9c
Dec 9 23:09:04 localhost kernel: [<c04059d7>] apic_timer_interrupt+0x1f/0x24
Dec 9 23:09:04 localhost kernel: [<c0403bb0>] default_idle+0x0/0x59
Dec 9 23:09:04 localhost kernel: [<c0403be1>] default_idle+0x31/0x59
Dec 9 23:09:04 localhost kernel: [<c0403ca8>] cpu_idle+0x9f/0xb9
Dec 9 23:09:04 localhost kernel: [<c07099fa>] start_kernel+0x37b/0x383
Dec 9 23:09:04 localhost kernel: =======================


위와같은오류가 한번씩 생기며 서버가 다운되는 현상이 생기는데
이유를 아시는 분있으신가요?
코어호스팅(가상서버호스팅)을 사용중입니다