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ddi_in_panic (9)
  • >> ddi_in_panic (9) ( Solaris man: Ядро )
  •  

    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


     

    Index

    NAME
    SYNOPSIS
    INTERFACE LEVEL
    DESCRIPTION
    RETURN VALUES
    CONTEXT
    SEE ALSO


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