linux服务器经常出现停顿现象，linux卡住

表现现像：在远程操作ＬＩＮＵＸ服务的时候比如： ssh 经常出现： ls 或者　在输入任何字符的时候突然没有响应，需要多等一段时间linux才能反映过来！

一＼查看日志：

[root@mailtest authlib]# tail -n 10 /var/log/messages |grep er
Jul 23 13:04:26 mailtest kernel: sd 0:0:1:0: ABORT operation started.
Jul 23 13:04:26 mailtest kernel: sd 0:0:1:0: ABORT operation timed-out.
Jul 23 13:04:26 mailtest kernel: sd 0:0:1:0: DEVICE RESET operation started.
Jul 23 13:04:26 mailtest kernel: sd 0:0:1:0: DEVICE RESET operation timed-out.
Jul 23 13:04:26 mailtest kernel: sd 0:0:1:0: BUS RESET operation started.
Jul 23 13:04:26 mailtest kernel: sym0: SCSI BUS reset detected.
Jul 23 13:04:26 mailtest kernel: sym0: SCSI BUS has been reset.
Jul 23 13:04:26 mailtest kernel: sd 0:0:1:0: BUS RESET operation complete.
Jul 23 13:04:26 mailtest kernel: target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
Jul 23 13:04:26 mailtest kernel: target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
[root@mailtest authlib]# uname -a
Linux mailtest.soft123.com 2.6.18-8.el5 #1 SMP Fri Jan 26 14:15:21 EST 2007 i686 i686 i386 GNU/Linux
[root@mailtest authlib]#

查看开机信息: dmesg

ip6_tables: (C) 2000-2006 Netfilter Core Team
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8191 buckets, 65528 max) - 228 bytes per conntrack
ip6_tables: (C) 2000-2006 Netfilter Core Team
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 35 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 77 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 51 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 b d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 5d d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8191 buckets, 65528 max) - 228 bytes per conntrack
ip6_tables: (C) 2000-2006 Netfilter Core Team
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 d d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 3d d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8191 buckets, 65528 max) - 228 bytes per conntrack
ip6_tables: (C) 2000-2006 Netfilter Core Team
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 51 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 6d d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 39 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 6f d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 4d d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 61 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sd 0:0:1:0: BUS RESET operation complete.
sym0: SCSI BUS has been reset.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 19 d.
sd 0:0:1:0: ABORT operation complete.
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 1d d.
sd 0:0:1:0: ABORT operation complete.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation failed.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation failed.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation failed.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation failed.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation failed.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation failed.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation complete.
target0:0:1: control msgout: c.
sym0: TARGET 1 has been reset.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 51 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 1b d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
sd 0:0:1:0: ABORT operation started.
target0:0:1: control msgout: 80 20 21 d.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: ABORT operation started.
sd 0:0:1:0: ABORT operation timed-out.
sd 0:0:1:0: DEVICE RESET operation started.
sd 0:0:1:0: DEVICE RESET operation timed-out.
sd 0:0:1:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sd 0:0:1:0: BUS RESET operation complete.
target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
[root@mailtest authlib]#

提示来看应该是和scsi设备有关系,是scsi硬盘?背板?还是所谓的scsi总线? 还是说此SCSI驱动在此内核下有问题? 先看一下服务器的SCSI设备的型号是多少.

[root@mailtest authlib]# /sbin/lspci
00:00.0 Host bridge: Broadcom CMIC-WS Host Bridge (GC-LE chipset) (rev 13)
00:00.1 Host bridge: Broadcom CMIC-WS Host Bridge (GC-LE chipset)
00:00.2 Host bridge: Broadcom CMIC-LE
00:02.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 10)
00:03.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
00:0f.0 ISA bridge: Broadcom CSB5 South Bridge (rev 93)
00:0f.1 IDE interface: Broadcom CSB5 IDE Controller (rev 93)
00:0f.2 USB Controller: Broadcom OSB4/CSB5 OHCI USB Controller (rev 05)
00:0f.3 Host bridge: Broadcom CSB5 LPC bridge
00:10.0 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 03)
00:10.2 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 03)
00:11.0 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 03)
00:11.2 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 03)
0e:04.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1010 66MHz Ultra3 SCSI Adapter (rev 01)
0e:04.1 SCSI storage controller: LSI Logic / Symbios Logic 53c1010 66MHz Ultra3 SCSI Adapter (rev 01)
12:02.0 Ethernet controller: Intel Corporation 82544GC Gigabit Ethernet Controller (LOM) (rev 02)
[root@mailtest authlib]#

看出来了吗? 是 LSI lOGIC 的 symbios logic 53c1010 v01....这是这个了.先去REDHAT.COM的网站上看一下吧,嗯....是这个BUG?

redhat bugzilla上面也有类似的问题：

Bug 313051 - iptables modules fail to unload

通常的解决方法：

Steps to Reproduce:
1. as root exec /etc/init.d/iptables stop OR stop or restart iptables from
services
2.
3.
  
Actual results:
Failed message

Expected results:
OK message

今天我也遇到一次......