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URGENT Connectivity lost to host, console hung, attempt with telnet host actively drops connection

Posted on 2006-04-19
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Last Modified: 2013-11-17
It works for a while then is inacessible, meaning trying to telnet to it or ssh a message comes back Host closed connection.  

Trying to log into console accepts username and password and hangs never giving shell back.   Had to restart server.  Hapening twice now.  I need some direction on what this could be!!!  Nothing in error -a  

URGENT
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Question by:nsome
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6 Comments
 
LVL 62

Expert Comment

by:gheist
ID: 16492012
please post output of "oslevel -r" might be some IP stack DoS or whatever.

"errpt -a" - anything about portmapper ???

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Author Comment

by:nsome
ID: 16492297
I'm seeing this error.  Could lack of paging lock it up like this?!


---------------------------------------------------------------------------
LABEL:            PGSP_KILL
IDENTIFIER:      C5C09FFA

Date/Time:       Wed Apr 19 11:00:21 EDT
Sequence Number: 1876
Machine Id:      000179454C00
Node Id:         s2506-svr009
Class:           S
Type:            PERM
Resource Name:   SYSVMM          

Description
SOFTWARE PROGRAM ABNORMALLY TERMINATED

Probable Causes
SYSTEM RUNNING OUT OF PAGING SPACE

Failure Causes
INSUFFICIENT PAGING SPACE DEFINED FOR THE SYSTEM
PROGRAM USING EXCESSIVE AMOUNT OF PAGING SPACE

      Recommended Actions
      DEFINE ADDITIONAL PAGING SPACE
      REDUCE PAGING SPACE REQUIREMENTS OF PROGRAM(S)

Detail Data
PROGRAM
ksh
USER'S PROCESS ID:
           0
PROGRAM'S PAGING SPACE USE IN 1KB BLOCKS
           0
---------------------------------------------------------------------------
LABEL:            PGSP_KILL
IDENTIFIER:      C5C09FFA

Date/Time:       Wed Apr 19 11:00:21 EDT
Sequence Number: 1875
Machine Id:      000179454C00
Node Id:         s2506-svr009
Class:           S
Type:            PERM
Resource Name:   SYSVMM          

Description
SOFTWARE PROGRAM ABNORMALLY TERMINATED

Probable Causes
SYSTEM RUNNING OUT OF PAGING SPACE

Failure Causes
INSUFFICIENT PAGING SPACE DEFINED FOR THE SYSTEM
PROGRAM USING EXCESSIVE AMOUNT OF PAGING SPACE

      Recommended Actions
      DEFINE ADDITIONAL PAGING SPACE
      REDUCE PAGING SPACE REQUIREMENTS OF PROGRAM(S)

Detail Data
PROGRAM
telnetd
USER'S PROCESS ID:
           0
PROGRAM'S PAGING SPACE USE IN 1KB BLOCKS
           0
---------------------------------------------------------------------------
LABEL:            PGSP_KILL
IDENTIFIER:      C5C09FFA

Date/Time:       Wed Apr 19 10:56:50 EDT
Sequence Number: 1874
Machine Id:      000179454C00
Node Id:         s2506-svr009
Class:           S
Type:            PERM
Resource Name:   SYSVMM          

Description
SOFTWARE PROGRAM ABNORMALLY TERMINATED

Probable Causes
SYSTEM RUNNING OUT OF PAGING SPACE

Failure Causes
INSUFFICIENT PAGING SPACE DEFINED FOR THE SYSTEM
PROGRAM USING EXCESSIVE AMOUNT OF PAGING SPACE

      Recommended Actions
      DEFINE ADDITIONAL PAGING SPACE
      REDUCE PAGING SPACE REQUIREMENTS OF PROGRAM(S)

Detail Data
PROGRAM
more
USER'S PROCESS ID:
           0
PROGRAM'S PAGING SPACE USE IN 1KB BLOCKS
           0
0
 

Author Comment

by:nsome
ID: 16492453
Bumped paging up, will keep an eye on it.
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LVL 62

Expert Comment

by:gheist
ID: 16495165
keep an eye on misbehaved program and limit it. swapping generally is bad.
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Author Comment

by:nsome
ID: 16495186
Could that have halted it that much that even console access was inhibited?
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LVL 62

Accepted Solution

by:
gheist earned 2000 total points
ID: 16495234
Excessive disk usage from excessive paging made it way too slow to be usable ( login could be taking 30 minutes for example)

use vmtune ( from bos.adt.samples if not present on your system) to adjust swap thresholds
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