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Old 05-11-2005
Error BUS error intr - problem
Hi,

I have fundamentals of unix. I got a problem on my Realtime electronic system having IOPs as the man-machine interface. Repeatedly bus interrupt error message is coming onto the VDU.

For the sake of redundacy(hot standby), two IOPs are synchronised for the electronic system data. OS used in IOPs is proprietary version of bsh( with ps command i get sh process).This problem(Bus error intr) arised when i am executing same command from both the IOPs. After this, IOP are out of synchronization.

I couldnot format and load the unix to rectify this problem. The other IOP working fine.

I think UNIX experts can solve this problem easily. Please help me to solve this problem.If you require additional details, i can give you.

Thanks & regards,
Krishna
Last edited by pvkrishna; 05-11-2005 at 09:19 AM.. Reason: mistake
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LEARN ABOUT DEBIAN

bus_config_intr

BUS_CONFIG_INTR(9)					   BSD Kernel Developer's Manual					BUS_CONFIG_INTR(9)

NAME

     BUS_CONFIG_INTR -- configure interrupt polarity and trigger mode

SYNOPSIS

     #include <sys/param.h>
     #include <sys/bus.h>

     int
     BUS_CONFIG_INTR(device_t dev, int irq, enum intr_trigger trig, enum intr_polarity pol);

DESCRIPTION

     The BUS_CONFIG_INTR() method allows bus or device drivers to provide interrupt polarity and trigger mode to parent busses.  This typically
     bubbles all the way up to the root bus (e.g. nexus) where the necessary actions are taken to actually program the hardware.  Since the
     BUS_CONFIG_INTR() method takes an interrupt number, it is assumed but not necessarily required that it is called prior to BUS_SETUP_INTR(9).

     The trig argument can be one of:

     INTR_TRIGGER_CONFORM  The interrupt trigger mode is standard for the bus to which the device is attached.

     INTR_TRIGGER_EDGE	   The interrupt is edge triggered.  This means that the interrupt is raised by the rising edge of the signal on the
			   interrupt line.  The signal typically reverts to the original state so as to cause a spike.

     INTR_TRIGGER_LEVEL    The interrupt is level triggered.  This means that the interrupt is raised when the signal on the interrupt line tran-
			   sitions and remains unchanged after that until the interrupt has been serviced, after which the signal transitions
			   back.

     The pol argument can be any one of:

     INTR_POLARITY_CONFORM  The interrupt polarity is standard for the bus to which the device is attached.

     INTR_POLARITY_HIGH     The interrupt is activated by a high voltage on the interrupt line.

     INTR_POLARITY_LOW	    The interrupt is activated by a low voltage on the interrupt line.

RETURN VALUES

     Zero is returned on success, otherwise an appropriate error is returned.

SEE ALSO

     BUS_SETUP_INTR(9), BUS_TEARDOWN_INTR(9), device(9), driver(9)

HISTORY

     The BUS_CONFIG_INTR() method first appeared in FreeBSD 5.2.

AUTHORS

     This manual page was written by Marcel Moolenaar <marcel@xcllnt.net>.

BSD
								  January 6, 2005							       BSD