dtrace_base.d

#!/usr/sbin/dtrace -s
#pragma D option flowindent
#./base.d -c ls

::$1:entry
{
  stack();
  ustack();
  self->in = 1;
}

::*scsi*:entry,
::*scsi*:return
/self->in/
{
}

::$1:return
{
  self->in = 0;
  printf("return 0x%x\n", arg1);
  printf("----------------------------------------------------\n")
}

dtrace_base_user.d

#!/usr/sbin/dtrace -s
#pragma D option flowindent
#./base.d -c ls

pid$target::main:entry
{
  /*stack();*/
  /*ustack();*/
  self->in = 1;
}

pid$target:libc::entry,
pid$target:libc::return
/self->in/
{
}

pid$target::main:return
{
  self->in = 0;
  printf("return 0x%x\n", arg1);
  printf("----------------------------------------------------\n")
}

gistfile1.txt

#!/usr/sbin/dtrace -qs
#truss -fp $(pgrep syslogd)
pid$target:::entry
{
    @num[probefunc] = count();
}

scsi-read10.d

#!/usr/sbin/dtrace -s

/*
 * capture context when firt part of a CDB is:
 *    0   1   2   3   4   5   6   7
 * 0x28 0x0 0x0 0x0 0x3 0x0 0x0 0x0
 * OPCODE is a READ(10) 0x28
 * LBA (bytes 2-5)  0x300
 * block count (bytes 7-8
 */

fbt::scsi_transport:entry
/(
((args[0])->pkt_cdbp[0] == 0x28) &&
((args[0])->pkt_cdbp[1] == 0x00) &&
((args[0])->pkt_cdbp[2] == 0x00) &&
((args[0])->pkt_cdbp[3] == 0x00) &&
((args[0])->pkt_cdbp[4] == 0x03) &&
((args[0])->pkt_cdbp[5] == 0x00)
)/
{
	pkt = (struct scsi_pkt *)arg0;
	a_sd = (struct scsi_device *)pkt->pkt_address.a.a_sd;
	dip = (struct dev_info *)a_sd->sd_dev;
	cdb = pkt->pkt_cdbp;
	printf("\n   %Y: SCSI-CDB-TRACE  scsi packet to %s from %a\n",
	    walltimestamp, stringof dip->devi_addr, caller);
	printf("   %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
	    cdb[0], cdb[1], cdb[2], cdb[3], cdb[4],
	    cdb[5], cdb[6], cdb[7], cdb[8], cdb[9]);
	a = (char *)curpsinfo->pr_psargs;
	sargs = (int)a == 0 ? "" : a;
	printf("   pid:%d uid:%d   %s %S\n", pid, uid, execname, stringof(sargs));
	printf("\tKernel Stack:");
	stack();
	printf("\n");
}

test.d

#!/usr/sbin/dtrace -s
#pragma D option flowindent

pid$target::main:entry
{
  /*stack();*/
  /*ustack();*/
  self->in = 1;
}

pid$target:::entry
/self->in/
{
}

pid$target:::return
/self->in/
{
        printf("return 0x%x, %s:%s:%s\n", arg1,probemod, probefunc, probename);
}
fbt:scsi_vhci:vhci_get_lu_prop:entry,
fbt:scsi_vhci:vhci_get_lu_list:entry
{
  stack();
}
fbt:scsi_vhci:vhci_get_lu_prop:return,
fbt:scsi_vhci:vhci_get_lu_list:return
{
  printf("return 0x%x\n", arg1);
}

pid$target::main:return
{
  self->in = 0;
  printf("return 0x%x\n", arg1);
  printf("----------------------------------------------------\n")
}

export _MPAPI_SCSI_VHCI_DEBUG=1

/etc/syslog.conf
svcadm restart system-log

*.debug /var/adm/messages

openssl req -newkey rsa:2048 -new -nodes -x509 -days 3650 -keyout key.pem -out cert.pem