【案例分享】AIX6100-06-06系统bug引起down机

某机器操作系统版本6100-06-06，系统down机，生成dump文件。

Problem:

System crash with following stack

CRASH INFORMATION:

CPU 3 CSA F00000002FF47600 at time of crash, error code

for

LEDs: 30000000

pvthread+02BD00 STACK:

[00009500].simple_lock+000000 ()

[00450E24]netinfo_unixdomnlist+000824 (??, ??, ??, ??,

??, ??)

[0451214C]netinfo+00006C (??, ??, ??, ??, ??, ??)

[004504DC]netinfo+0000FC (??, ??, ??, ??)

[00003850]ovlya_addr_sc_flih_main+000130 ()

[kdb_get_virtual_memory] no real storage @

FFFFFFFFFFFEF20

[100002640]0000000100002640 ()

[kdb_read_mem] no real storage @ FFFFFFFFFFF5E30

bug原因

File lock is taken before checking whether the file type is

socket.

1. 该故障因netstat -f unix 命令引起系统 crash, 是iBM bug 引起
2. 建议单独提升bos.mp64包补丁包或者整体升级到6100-06-12-1339(SP12)

官网解释

IV09793: SYSTEM CRASH IN NETINFO_UNIXDOMNLIST APPLIES TO AIX 6100-06

http://www-01.ibm.com/support/docview.wss?uid=isg1IV09793

File lock is taken before checking whether the file type is

socket.

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