RDA and "Alt-SysRq" Diagnostics (Doc ID 472206.1)

Last updated on JUNE 08, 2009

Applies to:

Linux Kernel - Version: 2.4.9
Linux x86

Symptoms

Starting with RDA Version 4.9 when run as "root", will collect the output of "Alt-SysRq" ("magic key") sequences (See <<Note 228203.1>>):
The data appears under the "Performance" section of the report.

When running the RDA as root on a system with a very large number of processes, the "Alt-SysRq-t", which captures the state of each process, can take a relatively long time to complete. While this is being done, the system may be unresponsive. If the system is part of a cluster, this can affect cluster software that relies on a heartbeat, potentially causing a node outage.

Changes

Installed RDA 4.9 or 4.10

Cause

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