Links
Home
Oracle DBA Forum
Frequent Oracle Errors
TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found'>ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated
X$ksmsp (OSEE 10.2.0.2 on Solaris 8)

X$ksmsp (OSEE 10.2.0.2 on Solaris 8)

2006-06-26       - By Schultz, Charles

Reply:     1     2     3     4     5     6     7     8     9     10     >>  

Granted that x$ksmsp is not documented and therefore subject to changes
from version to version (or patch to patch), I have an Oracle Support
Engineer telling me that one entry in ksmsp might actually show
fragmented memory in the case of a memory leak. My understanding, from
what I have gleaned from others much smarter than I, was that each row
of ksmsp showed one contiguous chunk of memory, be it small or large,
FREE or PERM (or something in between). The whole idea of a memory leak
causing ksmsp to report a fragmented chunk as one piece is a little
disturbing.

Can anyone corroborate or refute this?

Oracle Server Enterprise Edition 10.2.0.2
Solaris 8 (SunOS 5.8) 64-bit

charles schultz
oracle dba
aits - adsd
university of illinois



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7650.28">
<TITLE>X$ksmsp (OSEE 10.2.0.2 on Solaris 8)</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/rtf format -->

<P><FONT SIZE=2 FACE="Arial">Granted that x$ksmsp is not documented and
therefore subject to changes from version to version (or patch to patch), I
have an Oracle Support Engineer telling me that one entry in ksmsp might
actually show fragmented memory in the case of a memory leak. My understanding,
from what I have gleaned from others much smarter than I, was that each row of
ksmsp showed one contiguous chunk of memory, be it small or large, FREE or PERM
(or something in between). The whole idea of a memory leak causing ksmsp to
report a fragmented chunk as one piece is a little disturbing.</FONT></P>

<P><FONT SIZE=2 FACE="Arial">Can anyone corroborate or refute this?</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">Oracle Server Enterprise Edition 10.2.0.2</FONT>

<BR><FONT SIZE=2 FACE="Arial">Solaris 8 (SunOS 5.8) 64-bit</FONT>
</P>

<P><B><FONT SIZE=1 FACE="Tahoma">charles schultz</FONT></B>

<BR><B><FONT SIZE=1 FACE="Tahoma">oracle dba</FONT></B>

<BR><B><FONT SIZE=1 FACE="Tahoma">aits - adsd</FONT></B>

<BR><B><FONT SIZE=1 FACE="Tahoma">university of illinois</FONT></B>
</P>
<BR>

</BODY>
</HTML>