今天查看服务器日志发现报如下错误：
BUG: soft lockup detected on CPU#2!
Call Trace:
[] softlockup_tick+0xd5/0xe7
[] timer_interrupt+0x396/0x3f2
[] handle_IRQ_event+0x2d/0x60
[] __do_IRQ+0xa4/0x105
[] _local_bh_enable+0x61/0xc5
[] do_IRQ+0xe7/0xf5
[] evtchn_do_upcall+0x86/0xe0
[] do_hypervisor_callback+0x1e/0x2c
[] hypercall_page+0x3aa/0x1000
[] hypercall_page+0x3aa/0x1000
[] raw_safe_halt+0x84/0xa8
[] xen_idle+0x38/0x4a
[] cpu_idle+0x97/0xba
BUG: soft lockup detected on CPU#2!
Call Trace:
[] softlockup_tick+0xd5/0xe7
[] timer_interrupt+0x396/0x3f2
[] handle_IRQ_event+0x2d/0x60
[] __do_IRQ+0xa4/0x105
[] _local_bh_enable+0x61/0xc5
[] do_IRQ+0xe7/0xf5
[] evtchn_do_upcall+0x86/0xe0
[] do_hypervisor_callback+0x1e/0x2c
[] hypercall_page+0x3aa/0x1000
[] hypercall_page+0x3aa/0x1000
[] raw_safe_halt+0x84/0xa8
[] xen_idle+0x38/0x4a
[] cpu_idle+0x97/0xba
BUG: soft lockup detected on CPU#2!
Call Trace:
[] softlockup_tick+0xd5/0xe7
[] timer_interrupt+0x396/0x3f2
[] handle_IRQ_event+0x2d/0x60
[] __do_IRQ+0xa4/0x105
[] _local_bh_enable+0x61/0xc5
[] do_IRQ+0xe7/0xf5
[] evtchn_do_upcall+0x86/0xe0
[] do_hypervisor_callback+0x1e/0x2c
[] hypercall_page+0x3aa/0x1000
[] hypercall_page+0x3aa/0x1000
[] raw_safe_halt+0x84/0xa8
[] xen_idle+0x38/0x4a
[] cpu_idle+0x97/0xba
BUG: soft lockup detected on CPU#2!
Call Trace:
[] softlockup_tick+0xd5/0xe7
[] timer_interrupt+0x396/0x3f2
[] handle_IRQ_event+0x2d/0x60
[] __do_IRQ+0xa4/0x105
[] _local_bh_enable+0x61/0xc5
[] do_IRQ+0xe7/0xf5
[] evtchn_do_upcall+0x86/0xe0
[] do_hypervisor_callback+0x1e/0x2c
[] hypercall_page+0x3aa/0x1000
[] hypercall_page+0x3aa/0x1000
[] raw_safe_halt+0x84/0xa8
[] xen_idle+0x38/0x4a
[] cpu_idle+0x97/0xba
BUG: soft lockup detected on CPU#2!
到GOOGLE上看，有人说是网卡驱动问题，也有人说是双核问题引起的，只出现了一次，现在还不敢确定。系统为sentos5.1 ,硬件为ibm3650(感觉IBM机器老是有问题，会出现莫名其妙的问题).本人怀疑与双核有极大的关系，或者是apci。
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