dtrace discuss - Jan 2009 - dtrace comstar iscsit

Can someone tell me if we can see what iscsit (comstar) is doing via dtrace??

Are there any dtrace scripts available?

Thanks in advance,

K
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I received the following dtrace script from Peter dunlap, 

thanks Peter.

fbt::stmf_dlun0_new_task:entry,
fbt::sbd_new_task:entry
{
	this->task = (scsi_task_t *)arg0;
	this->dbuf = (stmf_data_buf_t *)arg1;

	printf("[%d:%03d:%03d:%03d] task=%p\n",
	    timestamp / 1000000000 , (timestamp / 1000000) % 1000,
	    (timestamp / 1000) % 1000, timestamp % 1000, this->task);

	tracemem(this->task->task_cdb, 16);
}

fbt::stmf_dlun0_new_task:return,
fbt::sbd_new_task:return
{
	printf("[%d:%03d:%03d:%03d] %s+%x returned %x",
	    timestamp / 1000000000 , (timestamp / 1000000) % 1000,
	    (timestamp / 1000) % 1000, timestamp % 1000,
	    probefunc, arg0, arg1);	

}

fbt::stmf_task_alloc:entry
{
	printf("[%d:%03d:%03d:%03d]\n",
	    timestamp / 1000000000 , (timestamp / 1000000) % 1000,
	    (timestamp / 1000) % 1000, timestamp % 1000);
}

fbt::stmf_task_alloc:return
{
	printf("[%d:%03d:%03d:%03d] %s+%x returned %x",
	    timestamp / 1000000000 , (timestamp / 1000000) % 1000,
	    (timestamp / 1000) % 1000, timestamp % 1000,
	    probefunc, arg0, arg1);	
}

fbt::stmf_get_ent_from_map:entry
{
	this->sm = (stmf_lun_map_t *)arg0;
	this->lun_num = (uint16_t)arg1;

	printf("[%d:%03d:%03d:%03d] lun_map=%p lun_num=0x%x",
	    timestamp / 1000000000 , (timestamp / 1000000) % 1000,
	    (timestamp / 1000) % 1000, timestamp % 1000,
	    this->sm, this->lun_num);
}

fbt::stmf_get_ent_from_map:return
{
	printf("[%d:%03d:%03d:%03d] %s+%x returned %x",
	    timestamp / 1000000000 , (timestamp / 1000000) % 1000,
	    (timestamp / 1000) % 1000, timestamp % 1000,
	    probefunc, arg0, arg1);	
}



fbt::stmf_scsilib_send_status:entry
{
	this->task = (scsi_task_t *)arg0;
	this->status = (uint8_t)arg1;
	this->saa = (uint32_t)arg2;
	printf("[%d:%03d:%03d:%03d] task %p status=%02x saa=%08x\n",
	    timestamp / 1000000000 , (timestamp / 1000000) % 1000,
	    (timestamp / 1000) % 1000, timestamp % 1000,
	    this->task, this->status, this->saa);
	stack();
}
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