SDT Probes

The SDT probes defined by the Oracle Solaris kernel are listed in the following table. The name stability and data stability of these probes are both Private because their description here thus reflects the kernel's implementation and should not be inferred to be an interface commitment. For more information about the DTrace stability mechanism, see DTrace Stability Mechanisms.

Table 11-34 List of SDT Probes

Probe	Description	arg0
callout-start	Fires immediately before executing a callout (see <sys/callo.h>). Callouts are executed by periodic system clock, and represent the implementation for timeout.	Pointer to the callout_t (see <sys/callo.h>) corresponding to the callout to be executed.
callout-end	Fires immediately after executing a callout (see <sys/callo.h>).	Pointer to the callout_t (see <sys/callo.h>) corresponding to the callout just executed.
interrupt-start	Fires immediately before calling into a device's interrupt handler.	Pointer to the dev_info structure (see <sys/ddi_impldefs.h>) corresponding to the interrupting device.
interrupt-complete	Fires immediately after returning from a device's interrupt handler.	Pointer to dev_info structure (see <sys/ddi_impldefs.h>) corresponding to the interrupting device.