A fix is available
APAR status
Closed as program error.
Error description
Under customer's environment (more than 500 clients connected to an aix system (as CAD server) thru Exceed running on PCs and xfs together with its 500 children are running on aix), xfs core dumps when one of xfs children processes exits. errpt.out --------------------------------------------------------- ------ LABEL: CORE_DUMP IDENTIFIER: A924A5FC Date/Time: Sequence Number: 1707 Machine Id: 0004DECBD400 Node Id: dbnspppg1touke1 Class: S Type: PERM WPAR: Global Resource Name: SYSPROC Description SOFTWARE PROGRAM ABNORMALLY TERMINATED Probable Causes SOFTWARE PROGRAM User Causes USER GENERATED SIGNAL Recommended Actions CORRECT THEN RETRY Failure Causes SOFTWARE PROGRAM ------------------------------------- With debugging xfs provided to customer, we have dbxtrace: --------------------------------------------------------- ----- Illegal instruction (illegal opcode) in . at 0x0 warning: Unable to access address 0x0 from core (dbx) t .() at 0x0 _FontTransClose(ciptr = (nil)), line 957 in "Xtrans.c" CloseSockets(), line 313 in "connection.c" main(argc = 7, argv = 0x2ff22cf8), line 210 in "main.c" (dbx) map _FontTransClose Entry 1: Object name: ./usr/bin/X11/xfs Text origin: 0x10000000 Text length: 0x2db27 Data origin: 0x20000118 Data length: 0x171cc File descriptor: 0x5 (dbx) 0x2ff22d60/7s 0x2ff22d60: "/usr/bin/X11/xfs" 0x2ff22d71: "-ls" 0x2ff22d75: "14/3/7100,6/4/7100,5/5/7100" 0x2ff22d91: "-cf" 0x2ff22d95: "/usr/lpp/X11/lib/X11/fs/config" 0x2ff22db4: "-port" 0x2ff22dba: "7100"
Local fix
N/A
Problem summary
X font server core dumps when X font client exits and aborts connection. pointer that was already freed, resulting in a coredump.
Problem conclusion
Include a conditional check in code to test if thesure corresponding pointer in the code is not null before being freed again.l before freeing it.
Temporary fix
/A
Comments
Fixed in 71N
APAR Information
APAR number
IV49987
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2013-09-25
Closed date
2013-12-09
Last modified date
2014-05-23
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
U866462
Fix information
Fixed component name
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U866462
UP14/05/22 I 1000
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Document Information
Modified date:
23 May 2014