I found a bug in rmsock on AIX 6.1 TL9 recently which caused a server crash. If run on a socket ID that has disappeared, the server just dumps and reboots.<\/p>\n
I came up with a work around for identifying process owners of open TCP sockets in AIX without using rmsock. Do the following using the AIX debugger kdb:<\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Run ‘netstat -A’ with any other flags you desire. Grab the socket ID from the first column and start up ‘kdb’.
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Run ‘sockinfo <sockID from above> tcpcb’ and hit <enter> repeatedly until you get to the bottom
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Grab the PID number right after the word ACTIVE as below:<\/p>\n
proc\/fd: fd: 14
\nSLOT NAME\u00a0\u00a0\u00a0\u00a0 STATE\u00a0\u00a0\u00a0\u00a0\u00a0 PID\u00a0\u00a0\u00a0 PPID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADSPACE\u00a0 CL #THS<\/p>\n
pvproc+099400\u00a0 613*oracle\u00a0\u00a0 ACTIVE 2650070 0000001 0000000AEF722590\u00a0\u00a0 0 0001<\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Run ‘hcal’ on the PID, still inside kdb, to convert to dec:<\/p>\n
(0)> hcal 2650070
\nValue hexa: 02650070\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Value decimal: 40173680<\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Exit out to a promt and use ‘ps’ grepping for the decimal PID to find the process.<\/p>\n
All without risking a crash.<\/p>\n","protected":false},"excerpt":{"rendered":"
I found a bug in rmsock on AIX 6.1 TL9 recently which caused a server crash. If run on a socket ID that has disappeared, the server just dumps and reboots. I came up with a work around for identifying … Continue reading