SCO 5.07 Panic / Core Dumps Post: 302091762

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LEARN ABOUT HPUX

ddi_in_panic

ddi_in_panic(9F)					   Kernel Functions for Drivers 					  ddi_in_panic(9F)

NAME

       ddi_in_panic - determine if system is in panic state

SYNOPSIS

       #include <sys/ddi.h>
       #include <sys/sunddi.h>

       int ddi_in_panic(void);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

DESCRIPTION

       Drivers	controlling devices on which the system may write a kernel crash dump in the event of a panic can call ddi_in_panic() to determine
       if the system is panicking.

       When the system is panicking, the calls of functions scheduled by timeout(9F) and ddi_trigger_softintr(9F) will never  occur.  Neither  can
       delay(9F) be relied upon, since it is implemented via  timeout(9F).

       Drivers that need to enforce a time delay such as  SCSI bus reset delay time must busy-wait when the system is panicking.

RETURN VALUES

       ddi_in_panic() returns  1 if the system is in panic,  or   0 otherwise.

CONTEXT

       ddi_in_panic() may be called from any context.

SEE ALSO

       dump(9E), delay(9F), ddi_trigger_softintr(9F), timeout(9F)

       Writing Device Drivers

SunOS 5.10							    23 Jun 1997 						  ddi_in_panic(9F)

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