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SunOS : New Kernel Patch
Sun(sm) Alert Notification
Sun Alert ID: 57504
Synopsis: Solaris 8 Patch 108528-17 Through 108528-29 and Solaris 9 Patch 112233-03 Through 112233-11 May Delay Execution of Real Time and Other High Priority Processes
Avoidance: Workaround, Patch
Date Released: 26-Feb-2004, 23-Apr-2004
Date Closed: 23-Apr-2004
Date Modified: 18-Mar-2004, 23-Apr-2004
Patches shown below in Contributing Factors may delay execution of real time and other high priority processes by a few milliseconds.
2. Contributing Factors
This issue can occur in the following releases:
Solaris 8 with patch 108528-17 through 108528-29 and without patch 117000-01
Solaris 9 with patch 112233-03 through 112233-11 and without patch 112233-12
Solaris 8 without patch 117001-01
Solaris 9 without patch 112234-12
Note: The described issue only occurs with the execution of real time and other high priority processes. This issue has no effect on the normal functionality of the system.
If the described issue occurs, a delay of a few milliseconds may be experienced when real time and high priority processes are executed.
Solution Summary Top
To work around the described issue, edit the "/etc/system" file and decrease the number of pages the memory scrubber scans on every call as shown below:
Note: A system reboot is required for the above change to take affect.
This issue is addressed in the following releases:
Solaris 8 with patch 117000-01 or later
Solaris 9 with patch 112233-12 or later
Solaris 8 with patch 117001-01 or later
Solaris 9 with patch 112234-12 or later
Updated Contributing Factors, Relief/Workaround, and Resolution Sections
Updated Contributing Factors and Resolution sections