10-28-2009
hunting down for software interrupt causes
Hi,
i have an rhel box with around 20 %soft every 2 seconds. The box is idle.
How do i start hunting down what's causing this? i believe /proc/interrupts is hardware related, procinfo is basically the same. where else can i look?
thanks,
Marc
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BCMXCP(8) NUT Manual BCMXCP(8)
NAME
bcmxcp - Driver for UPSes supporting the serial BCM/XCP protocol
NOTE
This man page only documents the hardware-specific features of the bcmxcp driver. For information about the core driver, see nutupsdrv(8).
SUPPORTED HARDWARE
This driver should recognize all serial BCM/XCP-compatible UPSes. It has been developed and tested on Powerware PW5115 and PW9120 hardware.
If your UPS has a USB connection, you may also consult the bcmxcp_usb(8) driver documentation.
EXTRA ARGUMENTS
This driver supports the following optional settings in the ups.conf(5).
shutdown_delay=delay
The number of seconds that the UPS should wait between receiving the shutdown command (upsdrvctl shutdown) and actually shutting off.
baud_rate=rate
Communication speed for the UPS. If this is set to 9600, it tries to connect to the UPS at 9600bps. If it fails to communicate, it will
go into baud-hunting. It starts at 1200 and goes up to 19200. If it succeeds, it tell you the speed it connected with. If not included
in the config, it defaults to baud-hunting.
DEFAULT VALUES FOR THE EXTRA ARGUMENTS
o shutdown_delay = 120
o baud_rate = none
INSTANT COMMANDS
This driver supports the following Instant Commands:
shutdown.return
Turn off the load and return when power is back.
shutdown.stayoff
Turn off the load and remain off.
test.battery.start
Start a battery test.
outlet.n.shutdown.return
Turn off the load on outlet n and return when power is back. (n is the outlet number reported by the upsc command)
TODO LIST
Report UPS statistics information
BCM/XCP supports reporting of UPS statistics data.
Change settings
Access the config register to change settings.
BUGS
None known.
AUTHOR
Tore Orpetveit <tore@orpetveit.net>
SEE ALSO
The core driver:
nutupsdrv(8)
The USB BCM/XCP driver:
bcmxcp_usb(8)
Internet resources:
The NUT (Network UPS Tools) home page: http://www.networkupstools.org/
Network UPS Tools 05/21/2012 BCMXCP(8)