Debugger Entry
The operating system kernel will implicitly stop executing and enter kmdb when
a breakpoint is reached or according to the other execution control settings described
in Chapter 6, Execution Control. You can use the mdb -K option or an appropriate
keyboard break sequence to request explicit entry to kmdb. On a SPARC system
console, use the STOP-A key sequence to send a break and enter kmdb. On
an x86 system console, use the F1–A key sequence to send a
break and enter kmdb. You can use the kbd command to customize the escape
sequence on your Solaris system. To enter kmdb on a system with
a serial console, use the appropriate serial console command to send a break
sequence.